AI Trajectory

null

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "KMSANReasoning": "",
  "NeedsKMSAN": false,
  "Reasoning": "The modified code touches legacy Intel EDAC drivers (e752x_edac, i3000_edac, and x38_edac) for specific physical memory controller chipsets (E7520/E7525/E7320/3100, 3000/3010, and X38). These hardware chipsets are not emulated in standard virtualized fuzzing environments (QEMU/GCE), making the probe, error unwinding, and remove routines structurally unreachable.",
  "WorthFuzzing": false
}

null

{
  "PatchDiff": "commit 1aabd23d0fa5692fbf327815c1325c46e2685983\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Wed Sep 16 03:23:52 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/drivers/edac/e752x_edac.c b/drivers/edac/e752x_edac.c\nindex 77c1fe75451e3..db8f1b7bdaa2f 100644\n--- a/drivers/edac/e752x_edac.c\n+++ b/drivers/edac/e752x_edac.c\n@@ -1387,7 +1387,7 @@ static int e752x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)\n \tedac_dbg(0, \"\\n\");\n \n \t/* wake up and enable device */\n-\tif (pci_enable_device(pdev) \u003c 0)\n+\tif (pcim_enable_device(pdev) \u003c 0)\n \t\treturn -EIO;\n \n \treturn e752x_probe1(pdev, ent-\u003edriver_data);\ndiff --git a/drivers/edac/i3000_edac.c b/drivers/edac/i3000_edac.c\nindex 04a231660b888..8f9dfe7c00b09 100644\n--- a/drivers/edac/i3000_edac.c\n+++ b/drivers/edac/i3000_edac.c\n@@ -461,6 +461,8 @@ static int i3000_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)\n \t\treturn -EIO;\n \n \trc = i3000_probe1(pdev, ent-\u003edriver_data);\n+\tif (rc)\n+\t\tpci_disable_device(pdev);\n \tif (!mci_pdev)\n \t\tmci_pdev = pci_dev_get(pdev);\n \n@@ -481,6 +483,8 @@ static void i3000_remove_one(struct pci_dev *pdev)\n \t\treturn;\n \n \tedac_mc_free(mci);\n+\n+\tpci_disable_device(pdev);\n }\n \n static const struct pci_device_id i3000_pci_tbl[] = {\ndiff --git a/drivers/edac/x38_edac.c b/drivers/edac/x38_edac.c\nindex 2b55daca33b05..4736d537591c0 100644\n--- a/drivers/edac/x38_edac.c\n+++ b/drivers/edac/x38_edac.c\n@@ -423,6 +423,8 @@ static int x38_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)\n \t\treturn -EIO;\n \n \trc = x38_probe1(pdev, ent-\u003edriver_data);\n+\tif (rc)\n+\t\tpci_disable_device(pdev);\n \tif (!mci_pdev)\n \t\tmci_pdev = pci_dev_get(pdev);\n \n@@ -442,6 +444,8 @@ static void x38_remove_one(struct pci_dev *pdev)\n \tiounmap(mci-\u003epvt_info);\n \n \tedac_mc_free(mci);\n+\n+\tpci_disable_device(pdev);\n }\n \n static const struct pci_device_id x38_pci_tbl[] = {\n"
}

core

null

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The modified code touches legacy Intel EDAC drivers (e752x_edac, i3000_edac, and x38_edac) for specific physical memory controller chipsets (E7520/E7525/E7320/3100, 3000/3010, and X38). These hardware chipsets are not emulated in standard virtualized fuzzing environments (QEMU/GCE), making the probe, error unwinding, and remove routines structurally unreachable.",
  "WorthFuzzing": false
}

You are an expert Linux kernel maintainer and security engineer.
Your job is to review a provided patch series and evaluate whether it warrants fuzzing with syzkaller.

IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in
your workspace. Do NOT rely on internal assumptions. You must actively use your code access
tools to inspect the actual source code, callers, and surrounding context.

================================================================================
1. CORE TRIAGE PHILOSOPHY
================================================================================
The goal of patch fuzzing is to discover crashes, regressions, exposed latent bugs,
and newly triggered assertions introduced by the patch series.

- REACHABILITY IS THE PRIMARY GATE:
  Fuzzing can only discover bugs in code that can actually execute in standard virtualized
  environments (GCE or QEMU, utilizing software-emulated devices like USB gadgets, netdev, tun/tap).
  If the modified code is structurally unreachable (see Section 2), it MUST NOT be fuzzed,
  regardless of whether it adds assertions or complex logic.

- DO NOT BLINDLY TRUST "NO FUNCTIONAL CHANGE" (NFCI) OR "REFACTORING" CLAIMS:
  Patch authors routinely label changes as "cleanups", "refactorings", or state
  "No functional change intended". Do NOT take these claims at face value.
  Code refactorings that rearrange logic, introduce helper functions, or alter state management
  in core subsystems frequently introduce subtle semantic shifts or uncover latent kernel bugs.
  If reachable executable code is modified or refactored, it MUST be fuzzed.

- NEW OR MODIFIED ASSERTIONS IN REACHABLE CODE MUST BE FUZZED:
  When a patch introduces or modifies runtime checks or assertions (e.g., WARN_ON*, VM_WARN_ON*,
  BUG_ON*, lockdep_assert*) in reachable code paths, it enforces new or stricter invariants.
  Even if the author believes the invariant always holds, fuzzing is essential to verify whether
  an unusual sequence of operations can violate it.

================================================================================
2. WHEN TO RETURN WorthFuzzing=false (NEGATIVE CRITERIA)
================================================================================
Return WorthFuzzing=false ONLY IF all modified code falls strictly into one or more of these categories:

- Non-kernel and non-executable changes:
  * Modifications to Documentation/, comments, or spelling fixes.
  * User-space directories, self-tests, samples, or scripts (e.g., tools/, samples/, scripts/, usr/)
    that do not affect the compiled kernel image (vmlinux) or kernel modules.
  * Purely decorative logging (e.g., message strings in pr_err, printk, dev_info) or tracepoints
    that do not alter control flow or data structures.
  * Build system or Kconfig changes that do not alter compiled C logic.
- Structurally unreachable hardware:
  * Vendor-specific PCIe switches, SmartNICs, or GPU drivers (e.g., mlxsw, pds_core, qed,
    ionic, amdgpu) requiring physical ASIC/PCIe cards not emulated in standard QEMU.
- Unreachable execution paths:
  * Driver teardown callbacks (.remove, .shutdown, pci_unregister_driver) executed only during
    physical PCI hot-unplug or manual sysfs driver unbinding.
  * Code paths exclusive to architectures other than the target architecture.

================================================================================
3. WHEN TO RETURN WorthFuzzing=true (POSITIVE CRITERIA)
================================================================================
Return WorthFuzzing=true whenever the patch touches reachable executable code, including:
- Core Subsystems:
  * Any logic modifications in memory management (mm/), synchronization/locking (kernel/locking/),
    BPF, scheduler, core networking, VFS, or syscall handling.
- Refactorings and Code Cleanups:
  * Any restructuring of reachable data structures, helper abstractions, or algorithm flows.
- Runtime Assertions and Defensive Checks:
  * Any introduction or alteration of assertions (WARN_ON*, VM_WARN_ON*, BUG_ON*, etc.) in reachable paths.
- Reachable Drivers and Protocols:
  * Drivers accessible via virtual buses (virtio, USB gadget, loopback, netlink, binder, sockets, etc.).

================================================================================
4. EXTRACTING FocusSymbols (PREVENTING DILUTION)
================================================================================
When WorthFuzzing=true, you must extract specific kernel functions into FocusSymbols to guide the fuzzer:

- AVOID UBIQUITOUS LIFECYCLE HOT-PATHS:
  Do NOT list generic, ubiquitous functions called by almost every program in the corpus
  (including, but not limited to: general memory allocators and deallocators, page fault
  and trap handlers, or core synchronization primitives; this is not an exhaustive list).
  Listing ubiquitous functions causes the fuzzer to classify thousands of unrelated tests as "focused",
  which severely dilutes fuzzing effort away from the actual changes.

- TARGET SPECIFIC FEATURE LOGIC AND ENTRYPOINTS:
  List functions that specifically implement the logic being added or altered, or direct API entrypoints
  for the subsystem feature under review.

- HANDLING STATIC INLINE FUNCTIONS IN HEADERS (.h):
  Compiler-inlined static functions (such as static inlines in mm/*.h or include/linux/*.h) lack
  distinct symbol addresses in vmlinux and cannot be targeted directly by symbol coverage filters.
  If the changes are primarily in static inline helpers, identify non-static, feature-specific caller
  functions in .c files that exercise them (avoiding ubiquitous lifecycle wrappers).

================================================================================
5. IDENTIFYING EnableConfigs
================================================================================
Identify any specific CONFIG_ options required to properly compile and reach the modified code:
- Inspect Kconfig files and #ifdef guards; do not make assumptions.
- Check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed.
- Strip any 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4").
Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Target architecture: amd64

For your convenience, here is the diff of the changes:
commit 1aabd23d0fa5692fbf327815c1325c46e2685983
Author: syz-cluster <triage@syzkaller.com>
Date:   Wed Sep 16 03:23:52 2026 +0000

    syz-cluster: applied patch under review

diff --git a/drivers/edac/e752x_edac.c b/drivers/edac/e752x_edac.c
index 77c1fe75451e3..db8f1b7bdaa2f 100644
--- a/drivers/edac/e752x_edac.c
+++ b/drivers/edac/e752x_edac.c
@@ -1387,7 +1387,7 @@ static int e752x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	edac_dbg(0, "\n");
 
 	/* wake up and enable device */
-	if (pci_enable_device(pdev) < 0)
+	if (pcim_enable_device(pdev) < 0)
 		return -EIO;
 
 	return e752x_probe1(pdev, ent->driver_data);
diff --git a/drivers/edac/i3000_edac.c b/drivers/edac/i3000_edac.c
index 04a231660b888..8f9dfe7c00b09 100644
--- a/drivers/edac/i3000_edac.c
+++ b/drivers/edac/i3000_edac.c
@@ -461,6 +461,8 @@ static int i3000_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return -EIO;
 
 	rc = i3000_probe1(pdev, ent->driver_data);
+	if (rc)
+		pci_disable_device(pdev);
 	if (!mci_pdev)
 		mci_pdev = pci_dev_get(pdev);
 
@@ -481,6 +483,8 @@ static void i3000_remove_one(struct pci_dev *pdev)
 		return;
 
 	edac_mc_free(mci);
+
+	pci_disable_device(pdev);
 }
 
 static const struct pci_device_id i3000_pci_tbl[] = {
diff --git a/drivers/edac/x38_edac.c b/drivers/edac/x38_edac.c
index 2b55daca33b05..4736d537591c0 100644
--- a/drivers/edac/x38_edac.c
+++ b/drivers/edac/x38_edac.c
@@ -423,6 +423,8 @@ static int x38_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return -EIO;
 
 	rc = x38_probe1(pdev, ent->driver_data);
+	if (rc)
+		pci_disable_device(pdev);
 	if (!mci_pdev)
 		mci_pdev = pci_dev_get(pdev);
 
@@ -442,6 +444,8 @@ static void x38_remove_one(struct pci_dev *pdev)
 	iounmap(mci->pvt_info);
 
 	edac_mc_free(mci);
+
+	pci_disable_device(pdev);
 }
 
 static const struct pci_device_id x38_pci_tbl[] = {

gemini-3.8-flash

null

null

							input: 3591
							output: 28
							thoughts: 436
						

**Evaluating the Patch Series**

Okay, so I've been asked to look over this patch series. My immediate thought is, let's see what's being modified. It looks like we're touching `e752x_edac.c`, `i3000_edac.c`, and `x38_edac.c`. Right, EDAC drivers, memory controller stuff. Let's refresh my memory on what these specific drivers handle. Ah, yes: the e752x is Intel's e752x memory controller, i3000 is Intel 3000/3010, and x38 is Intel X38 – all memory controllers, all PCI devices.

Now, the important question for the reviewer is reachability and whether this code is even *testable* in a standard fuzzing environment. The instructions are clear: if it's not reachable in GCE or standard QEMU, we *don't* fuzz it. Specifically, the patch has to execute in standard virtualized environments. I need to be sure these memory controllers are emulated in QEMU. Let's see... the instructions say to avoid vendor-specific PCIe stuff, ASICs and, importantly, driver teardown code that relies on physical unplugs. Right, structurally unreachable.

Therefore, my next step is clear. I need to see if QEMU *actually* emulates these Intel memory controllers. I need to check the PCI IDs these drivers bind to and see if QEMU has corresponding emulation. Let's pull up the source files and see what we can find with `read-file` or `grepper`. I have to be sure this is fuzzable *before* I go any further.

{
  "Expression": "PCI_DEVICE",
  "PathPrefix": "drivers/edac/"
}

{
  "Output": "\nFull output is too long, showing 500 out of 1152 lines.\nUse more precise expression if possible.\n\ndrivers/edac/amd64_edac.c=989=static struct local_node_map {\n--\ndrivers/edac/amd64_edac.c-993-\ndrivers/edac/amd64_edac.c:994:#define PCI_DEVICE_ID_AMD_MI200_DF_F1\t\t0x14d1\ndrivers/edac/amd64_edac.c-995-#define REG_LOCAL_NODE_TYPE_MAP\t\t\t0x144\n--\ndrivers/edac/amd64_edac.c=1001=static int gpu_get_node_map(struct amd64_pvt *pvt)\n--\ndrivers/edac/amd64_edac.c-1011-\t */\ndrivers/edac/amd64_edac.c:1012:\tif (pvt-\u003eF3-\u003edevice != PCI_DEVICE_ID_AMD_MI200_DF_F3)\ndrivers/edac/amd64_edac.c-1013-\t\treturn 0;\n--\ndrivers/edac/amd64_edac.c-1021-\ndrivers/edac/amd64_edac.c:1022:\tpdev = pci_get_device(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_MI200_DF_F1, NULL);\ndrivers/edac/amd64_edac.c-1023-\tif (!pdev) {\n--\ndrivers/edac/amd64_edac.c=1733=static void read_dram_base_limit_regs(struct amd64_pvt *pvt, unsigned range)\n--\ndrivers/edac/amd64_edac.c-1761-\tif (pvt-\u003emodel == 0x60)\ndrivers/edac/amd64_edac.c:1762:\t\tpci_func = PCI_DEVICE_ID_AMD_15H_M60H_NB_F1;\ndrivers/edac/amd64_edac.c-1763-\telse if (pvt-\u003emodel == 0x30)\ndrivers/edac/amd64_edac.c:1764:\t\tpci_func = PCI_DEVICE_ID_AMD_15H_M30H_NB_F1;\ndrivers/edac/amd64_edac.c-1765-\telse\ndrivers/edac/amd64_edac.c:1766:\t\tpci_func = PCI_DEVICE_ID_AMD_15H_NB_F1;\ndrivers/edac/amd64_edac.c-1767-\n--\ndrivers/edac/amd64_edac.c=3764=static int per_family_init(struct amd64_pvt *pvt)\n--\ndrivers/edac/amd64_edac.c-3785-\t\t\t\t\t\t\t  \"K8 revF or later\" : \"K8 revE or earlier\";\ndrivers/edac/amd64_edac.c:3786:\t\tpvt-\u003ef1_id\t\t\t\t= PCI_DEVICE_ID_AMD_K8_NB_ADDRMAP;\ndrivers/edac/amd64_edac.c:3787:\t\tpvt-\u003ef2_id\t\t\t\t= PCI_DEVICE_ID_AMD_K8_NB_MEMCTL;\ndrivers/edac/amd64_edac.c-3788-\t\tpvt-\u003eops-\u003emap_sysaddr_to_csrow\t\t= k8_map_sysaddr_to_csrow;\n--\ndrivers/edac/amd64_edac.c-3792-\tcase 0x10:\ndrivers/edac/amd64_edac.c:3793:\t\tpvt-\u003ef1_id\t\t\t\t= PCI_DEVICE_ID_AMD_10H_NB_MAP;\ndrivers/edac/amd64_edac.c:3794:\t\tpvt-\u003ef2_id\t\t\t\t= PCI_DEVICE_ID_AMD_10H_NB_DRAM;\ndrivers/edac/amd64_edac.c-3795-\t\tpvt-\u003eops-\u003edbam_to_cs\t\t\t= f10_dbam_to_chip_select;\n--\ndrivers/edac/amd64_edac.c-3800-\t\tcase 0x30:\ndrivers/edac/amd64_edac.c:3801:\t\t\tpvt-\u003ef1_id\t\t\t= PCI_DEVICE_ID_AMD_15H_M30H_NB_F1;\ndrivers/edac/amd64_edac.c:3802:\t\t\tpvt-\u003ef2_id\t\t\t= PCI_DEVICE_ID_AMD_15H_M30H_NB_F2;\ndrivers/edac/amd64_edac.c-3803-\t\t\tbreak;\ndrivers/edac/amd64_edac.c-3804-\t\tcase 0x60:\ndrivers/edac/amd64_edac.c:3805:\t\t\tpvt-\u003ef1_id\t\t\t= PCI_DEVICE_ID_AMD_15H_M60H_NB_F1;\ndrivers/edac/amd64_edac.c:3806:\t\t\tpvt-\u003ef2_id\t\t\t= PCI_DEVICE_ID_AMD_15H_M60H_NB_F2;\ndrivers/edac/amd64_edac.c-3807-\t\t\tpvt-\u003eops-\u003edbam_to_cs\t\t= f15_m60h_dbam_to_chip_select;\n--\ndrivers/edac/amd64_edac.c-3812-\t\tdefault:\ndrivers/edac/amd64_edac.c:3813:\t\t\tpvt-\u003ef1_id\t\t\t= PCI_DEVICE_ID_AMD_15H_NB_F1;\ndrivers/edac/amd64_edac.c:3814:\t\t\tpvt-\u003ef2_id\t\t\t= PCI_DEVICE_ID_AMD_15H_NB_F2;\ndrivers/edac/amd64_edac.c-3815-\t\t\tpvt-\u003eops-\u003edbam_to_cs\t\t= f15_dbam_to_chip_select;\n--\ndrivers/edac/amd64_edac.c-3822-\t\tcase 0x30:\ndrivers/edac/amd64_edac.c:3823:\t\t\tpvt-\u003ef1_id\t\t\t= PCI_DEVICE_ID_AMD_16H_M30H_NB_F1;\ndrivers/edac/amd64_edac.c:3824:\t\t\tpvt-\u003ef2_id\t\t\t= PCI_DEVICE_ID_AMD_16H_M30H_NB_F2;\ndrivers/edac/amd64_edac.c-3825-\t\t\tbreak;\ndrivers/edac/amd64_edac.c-3826-\t\tdefault:\ndrivers/edac/amd64_edac.c:3827:\t\t\tpvt-\u003ef1_id\t\t\t= PCI_DEVICE_ID_AMD_16H_NB_F1;\ndrivers/edac/amd64_edac.c:3828:\t\t\tpvt-\u003ef2_id\t\t\t= PCI_DEVICE_ID_AMD_16H_NB_F2;\ndrivers/edac/amd64_edac.c-3829-\t\t\tbreak;\n--\ndrivers/edac/amd64_edac.c-3855-\t\tcase 0x30 ... 0x3f:\ndrivers/edac/amd64_edac.c:3856:\t\t\tif (pvt-\u003eF3-\u003edevice == PCI_DEVICE_ID_AMD_MI200_DF_F3) {\ndrivers/edac/amd64_edac.c-3857-\t\t\t\ttmp_name\t\t\t= \"MI200\";\n--\ndrivers/edac/amd64_edac.h-107- */\ndrivers/edac/amd64_edac.h:108:#define PCI_DEVICE_ID_AMD_15H_NB_F1\t0x1601\ndrivers/edac/amd64_edac.h:109:#define PCI_DEVICE_ID_AMD_15H_NB_F2\t0x1602\ndrivers/edac/amd64_edac.h:110:#define PCI_DEVICE_ID_AMD_15H_M30H_NB_F1 0x141b\ndrivers/edac/amd64_edac.h:111:#define PCI_DEVICE_ID_AMD_15H_M30H_NB_F2 0x141c\ndrivers/edac/amd64_edac.h:112:#define PCI_DEVICE_ID_AMD_15H_M60H_NB_F1 0x1571\ndrivers/edac/amd64_edac.h:113:#define PCI_DEVICE_ID_AMD_15H_M60H_NB_F2 0x1572\ndrivers/edac/amd64_edac.h:114:#define PCI_DEVICE_ID_AMD_16H_NB_F1\t0x1531\ndrivers/edac/amd64_edac.h:115:#define PCI_DEVICE_ID_AMD_16H_NB_F2\t0x1532\ndrivers/edac/amd64_edac.h:116:#define PCI_DEVICE_ID_AMD_16H_M30H_NB_F1 0x1581\ndrivers/edac/amd64_edac.h:117:#define PCI_DEVICE_ID_AMD_16H_M30H_NB_F2 0x1582\ndrivers/edac/amd64_edac.h-118-\n--\ndrivers/edac/e752x_edac.c=35=static struct edac_pci_ctl_info *e752x_pci;\n--\ndrivers/edac/e752x_edac.c-42-\ndrivers/edac/e752x_edac.c:43:#ifndef PCI_DEVICE_ID_INTEL_7520_0\ndrivers/edac/e752x_edac.c:44:#define PCI_DEVICE_ID_INTEL_7520_0      0x3590\ndrivers/edac/e752x_edac.c:45:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7520_0      */\ndrivers/edac/e752x_edac.c-46-\ndrivers/edac/e752x_edac.c:47:#ifndef PCI_DEVICE_ID_INTEL_7520_1_ERR\ndrivers/edac/e752x_edac.c:48:#define PCI_DEVICE_ID_INTEL_7520_1_ERR  0x3591\ndrivers/edac/e752x_edac.c:49:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7520_1_ERR  */\ndrivers/edac/e752x_edac.c-50-\ndrivers/edac/e752x_edac.c:51:#ifndef PCI_DEVICE_ID_INTEL_7525_0\ndrivers/edac/e752x_edac.c:52:#define PCI_DEVICE_ID_INTEL_7525_0      0x359E\ndrivers/edac/e752x_edac.c:53:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7525_0      */\ndrivers/edac/e752x_edac.c-54-\ndrivers/edac/e752x_edac.c:55:#ifndef PCI_DEVICE_ID_INTEL_7525_1_ERR\ndrivers/edac/e752x_edac.c:56:#define PCI_DEVICE_ID_INTEL_7525_1_ERR  0x3593\ndrivers/edac/e752x_edac.c:57:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7525_1_ERR  */\ndrivers/edac/e752x_edac.c-58-\ndrivers/edac/e752x_edac.c:59:#ifndef PCI_DEVICE_ID_INTEL_7320_0\ndrivers/edac/e752x_edac.c:60:#define PCI_DEVICE_ID_INTEL_7320_0\t0x3592\ndrivers/edac/e752x_edac.c:61:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7320_0 */\ndrivers/edac/e752x_edac.c-62-\ndrivers/edac/e752x_edac.c:63:#ifndef PCI_DEVICE_ID_INTEL_7320_1_ERR\ndrivers/edac/e752x_edac.c:64:#define PCI_DEVICE_ID_INTEL_7320_1_ERR\t0x3593\ndrivers/edac/e752x_edac.c:65:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7320_1_ERR */\ndrivers/edac/e752x_edac.c-66-\ndrivers/edac/e752x_edac.c:67:#ifndef PCI_DEVICE_ID_INTEL_3100_0\ndrivers/edac/e752x_edac.c:68:#define PCI_DEVICE_ID_INTEL_3100_0\t0x35B0\ndrivers/edac/e752x_edac.c:69:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_3100_0 */\ndrivers/edac/e752x_edac.c-70-\ndrivers/edac/e752x_edac.c:71:#ifndef PCI_DEVICE_ID_INTEL_3100_1_ERR\ndrivers/edac/e752x_edac.c:72:#define PCI_DEVICE_ID_INTEL_3100_1_ERR\t0x35B1\ndrivers/edac/e752x_edac.c:73:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_3100_1_ERR */\ndrivers/edac/e752x_edac.c-74-\n--\ndrivers/edac/e752x_edac.c=250=static const struct e752x_dev_info e752x_devs[] = {\ndrivers/edac/e752x_edac.c-251-\t[E7520] = {\ndrivers/edac/e752x_edac.c:252:\t\t.err_dev = PCI_DEVICE_ID_INTEL_7520_1_ERR,\ndrivers/edac/e752x_edac.c:253:\t\t.ctl_dev = PCI_DEVICE_ID_INTEL_7520_0,\ndrivers/edac/e752x_edac.c-254-\t\t.ctl_name = \"E7520\"},\ndrivers/edac/e752x_edac.c-255-\t[E7525] = {\ndrivers/edac/e752x_edac.c:256:\t\t.err_dev = PCI_DEVICE_ID_INTEL_7525_1_ERR,\ndrivers/edac/e752x_edac.c:257:\t\t.ctl_dev = PCI_DEVICE_ID_INTEL_7525_0,\ndrivers/edac/e752x_edac.c-258-\t\t.ctl_name = \"E7525\"},\ndrivers/edac/e752x_edac.c-259-\t[E7320] = {\ndrivers/edac/e752x_edac.c:260:\t\t.err_dev = PCI_DEVICE_ID_INTEL_7320_1_ERR,\ndrivers/edac/e752x_edac.c:261:\t\t.ctl_dev = PCI_DEVICE_ID_INTEL_7320_0,\ndrivers/edac/e752x_edac.c-262-\t\t.ctl_name = \"E7320\"},\ndrivers/edac/e752x_edac.c-263-\t[I3100] = {\ndrivers/edac/e752x_edac.c:264:\t\t.err_dev = PCI_DEVICE_ID_INTEL_3100_1_ERR,\ndrivers/edac/e752x_edac.c:265:\t\t.ctl_dev = PCI_DEVICE_ID_INTEL_3100_0,\ndrivers/edac/e752x_edac.c-266-\t\t.ctl_name = \"3100\"},\n--\ndrivers/edac/e752x_edac.c=838=static void e752x_get_error_info(struct mem_ctl_info *mci,\n--\ndrivers/edac/e752x_edac.c-849-\tif (info-\u003eferr_global) {\ndrivers/edac/e752x_edac.c:850:\t\tif (pvt-\u003edev_info-\u003eerr_dev == PCI_DEVICE_ID_INTEL_3100_1_ERR) {\ndrivers/edac/e752x_edac.c-851-\t\t\tpci_read_config_dword(dev, I3100_NSI_FERR,\n--\ndrivers/edac/e752x_edac.c-901-\tif (info-\u003enerr_global) {\ndrivers/edac/e752x_edac.c:902:\t\tif (pvt-\u003edev_info-\u003eerr_dev == PCI_DEVICE_ID_INTEL_3100_1_ERR) {\ndrivers/edac/e752x_edac.c-903-\t\t\tpci_read_config_dword(dev, I3100_NSI_NERR,\n--\ndrivers/edac/e752x_edac.c=988=static int set_sdram_scrub_rate(struct mem_ctl_info *mci, u32 new_bw)\n--\ndrivers/edac/e752x_edac.c-994-\ndrivers/edac/e752x_edac.c:995:\tif (pvt-\u003edev_info-\u003ectl_dev == PCI_DEVICE_ID_INTEL_3100_0)\ndrivers/edac/e752x_edac.c-996-\t\tscrubrates = scrubrates_i3100;\n--\ndrivers/edac/e752x_edac.c=1017=static int get_sdram_scrub_rate(struct mem_ctl_info *mci)\n--\ndrivers/edac/e752x_edac.c-1024-\ndrivers/edac/e752x_edac.c:1025:\tif (pvt-\u003edev_info-\u003ectl_dev == PCI_DEVICE_ID_INTEL_3100_0)\ndrivers/edac/e752x_edac.c-1026-\t\tscrubrates = scrubrates_i3100;\n--\ndrivers/edac/e752x_edac.c=1232=static void e752x_init_error_reporting_regs(struct e752x_pvt *pvt)\n--\ndrivers/edac/e752x_edac.c-1237-\t/* Turn off error disable \u0026 SMI in case the BIOS turned it on */\ndrivers/edac/e752x_edac.c:1238:\tif (pvt-\u003edev_info-\u003eerr_dev == PCI_DEVICE_ID_INTEL_3100_1_ERR) {\ndrivers/edac/e752x_edac.c-1239-\t\tpci_write_config_dword(dev, I3100_NSI_EMASK, 0);\n--\ndrivers/edac/e7xxx_edac.c-42-\ndrivers/edac/e7xxx_edac.c:43:#ifndef PCI_DEVICE_ID_INTEL_7205_0\ndrivers/edac/e7xxx_edac.c:44:#define PCI_DEVICE_ID_INTEL_7205_0\t0x255d\ndrivers/edac/e7xxx_edac.c:45:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7205_0 */\ndrivers/edac/e7xxx_edac.c-46-\ndrivers/edac/e7xxx_edac.c:47:#ifndef PCI_DEVICE_ID_INTEL_7205_1_ERR\ndrivers/edac/e7xxx_edac.c:48:#define PCI_DEVICE_ID_INTEL_7205_1_ERR\t0x2551\ndrivers/edac/e7xxx_edac.c:49:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7205_1_ERR */\ndrivers/edac/e7xxx_edac.c-50-\ndrivers/edac/e7xxx_edac.c:51:#ifndef PCI_DEVICE_ID_INTEL_7500_0\ndrivers/edac/e7xxx_edac.c:52:#define PCI_DEVICE_ID_INTEL_7500_0\t0x2540\ndrivers/edac/e7xxx_edac.c:53:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7500_0 */\ndrivers/edac/e7xxx_edac.c-54-\ndrivers/edac/e7xxx_edac.c:55:#ifndef PCI_DEVICE_ID_INTEL_7500_1_ERR\ndrivers/edac/e7xxx_edac.c:56:#define PCI_DEVICE_ID_INTEL_7500_1_ERR\t0x2541\ndrivers/edac/e7xxx_edac.c:57:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7500_1_ERR */\ndrivers/edac/e7xxx_edac.c-58-\ndrivers/edac/e7xxx_edac.c:59:#ifndef PCI_DEVICE_ID_INTEL_7501_0\ndrivers/edac/e7xxx_edac.c:60:#define PCI_DEVICE_ID_INTEL_7501_0\t0x254c\ndrivers/edac/e7xxx_edac.c:61:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7501_0 */\ndrivers/edac/e7xxx_edac.c-62-\ndrivers/edac/e7xxx_edac.c:63:#ifndef PCI_DEVICE_ID_INTEL_7501_1_ERR\ndrivers/edac/e7xxx_edac.c:64:#define PCI_DEVICE_ID_INTEL_7501_1_ERR\t0x2541\ndrivers/edac/e7xxx_edac.c:65:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7501_1_ERR */\ndrivers/edac/e7xxx_edac.c-66-\ndrivers/edac/e7xxx_edac.c:67:#ifndef PCI_DEVICE_ID_INTEL_7505_0\ndrivers/edac/e7xxx_edac.c:68:#define PCI_DEVICE_ID_INTEL_7505_0\t0x2550\ndrivers/edac/e7xxx_edac.c:69:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7505_0 */\ndrivers/edac/e7xxx_edac.c-70-\ndrivers/edac/e7xxx_edac.c:71:#ifndef PCI_DEVICE_ID_INTEL_7505_1_ERR\ndrivers/edac/e7xxx_edac.c:72:#define PCI_DEVICE_ID_INTEL_7505_1_ERR\t0x2551\ndrivers/edac/e7xxx_edac.c:73:#endif\t\t\t\t/* PCI_DEVICE_ID_INTEL_7505_1_ERR */\ndrivers/edac/e7xxx_edac.c-74-\n--\ndrivers/edac/e7xxx_edac.c=150=static const struct e7xxx_dev_info e7xxx_devs[] = {\ndrivers/edac/e7xxx_edac.c-151-\t[E7500] = {\ndrivers/edac/e7xxx_edac.c:152:\t\t.err_dev = PCI_DEVICE_ID_INTEL_7500_1_ERR,\ndrivers/edac/e7xxx_edac.c-153-\t\t.ctl_name = \"E7500\"},\ndrivers/edac/e7xxx_edac.c-154-\t[E7501] = {\ndrivers/edac/e7xxx_edac.c:155:\t\t.err_dev = PCI_DEVICE_ID_INTEL_7501_1_ERR,\ndrivers/edac/e7xxx_edac.c-156-\t\t.ctl_name = \"E7501\"},\ndrivers/edac/e7xxx_edac.c-157-\t[E7505] = {\ndrivers/edac/e7xxx_edac.c:158:\t\t.err_dev = PCI_DEVICE_ID_INTEL_7505_1_ERR,\ndrivers/edac/e7xxx_edac.c-159-\t\t.ctl_name = \"E7505\"},\ndrivers/edac/e7xxx_edac.c-160-\t[E7205] = {\ndrivers/edac/e7xxx_edac.c:161:\t\t.err_dev = PCI_DEVICE_ID_INTEL_7205_1_ERR,\ndrivers/edac/e7xxx_edac.c-162-\t\t.ctl_name = \"E7205\"},\n--\ndrivers/edac/edac_mc.h=83=do {\t\t\t\t\t\t\t\t\t\\\n--\ndrivers/edac/edac_mc.h-91-#define PCI_VEND_DEV(vend, dev) \\\ndrivers/edac/edac_mc.h:92:\tPCI_DEVICE(PCI_VENDOR_ID_ ## vend, PCI_DEVICE_ID_ ## vend ## _ ## dev)\ndrivers/edac/edac_mc.h-93-\n--\ndrivers/edac/i3000_edac.c=508=static int __init i3000_init(void)\n--\ndrivers/edac/i3000_edac.c-523-\t\tmci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i3000_edac.c:524:\t\t\t\t\tPCI_DEVICE_ID_INTEL_3000_HB, NULL);\ndrivers/edac/i3000_edac.c-525-\t\tif (!mci_pdev) {\n--\ndrivers/edac/i3200_edac.c-21-\ndrivers/edac/i3200_edac.c:22:#define PCI_DEVICE_ID_INTEL_3200_HB    0x29f0\ndrivers/edac/i3200_edac.c-23-\n--\ndrivers/edac/i3200_edac.c=485=static int __init i3200_init(void)\n--\ndrivers/edac/i3200_edac.c-500-\t\tmci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i3200_edac.c:501:\t\t\t\tPCI_DEVICE_ID_INTEL_3200_HB, NULL);\ndrivers/edac/i3200_edac.c-502-\t\tif (!mci_pdev) {\n--\ndrivers/edac/i5000_edac.c-38-\ndrivers/edac/i5000_edac.c:39:#ifndef PCI_DEVICE_ID_INTEL_FBD_0\ndrivers/edac/i5000_edac.c:40:#define PCI_DEVICE_ID_INTEL_FBD_0\t0x25F5\ndrivers/edac/i5000_edac.c-41-#endif\ndrivers/edac/i5000_edac.c:42:#ifndef PCI_DEVICE_ID_INTEL_FBD_1\ndrivers/edac/i5000_edac.c:43:#define PCI_DEVICE_ID_INTEL_FBD_1\t0x25F6\ndrivers/edac/i5000_edac.c-44-#endif\n--\ndrivers/edac/i5000_edac.c-52- */\ndrivers/edac/i5000_edac.c:53:#define\tPCI_DEVICE_ID_INTEL_I5000_DEV16\t0x25F0\ndrivers/edac/i5000_edac.c-54-\n--\ndrivers/edac/i5000_edac.c-261- */\ndrivers/edac/i5000_edac.c:262:#define PCI_DEVICE_ID_I5000_BRANCH_0\t0x25F5\ndrivers/edac/i5000_edac.c:263:#define PCI_DEVICE_ID_I5000_BRANCH_1\t0x25F6\ndrivers/edac/i5000_edac.c-264-\n--\ndrivers/edac/i5000_edac.c=307=static const struct i5000_dev_info i5000_devs[] = {\n--\ndrivers/edac/i5000_edac.c-309-\t\t.ctl_name = \"I5000\",\ndrivers/edac/i5000_edac.c:310:\t\t.fsb_mapping_errors = PCI_DEVICE_ID_INTEL_I5000_DEV16,\ndrivers/edac/i5000_edac.c-311-\t},\n--\ndrivers/edac/i5000_edac.c=782=static int i5000_get_devices(struct mem_ctl_info *mci, int dev_idx)\n--\ndrivers/edac/i5000_edac.c-793-\t\tpdev = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i5000_edac.c:794:\t\t\t\tPCI_DEVICE_ID_INTEL_I5000_DEV16, pdev);\ndrivers/edac/i5000_edac.c-795-\n--\ndrivers/edac/i5000_edac.c-803-\t\t\t\tPCI_VENDOR_ID_INTEL,\ndrivers/edac/i5000_edac.c:804:\t\t\t\tPCI_DEVICE_ID_INTEL_I5000_DEV16);\ndrivers/edac/i5000_edac.c-805-\n--\ndrivers/edac/i5000_edac.c-819-\t\tpdev = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i5000_edac.c:820:\t\t\t\tPCI_DEVICE_ID_INTEL_I5000_DEV16, pdev);\ndrivers/edac/i5000_edac.c-821-\n--\ndrivers/edac/i5000_edac.c-828-\t\t\t\tPCI_VENDOR_ID_INTEL,\ndrivers/edac/i5000_edac.c:829:\t\t\t\tPCI_DEVICE_ID_INTEL_I5000_DEV16);\ndrivers/edac/i5000_edac.c-830-\n--\ndrivers/edac/i5000_edac.c-854-\tpdev = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i5000_edac.c:855:\t\t\tPCI_DEVICE_ID_I5000_BRANCH_0, pdev);\ndrivers/edac/i5000_edac.c-856-\n--\ndrivers/edac/i5000_edac.c-860-\t\t\t\"vendor 0x%x device 0x%x Func 0 (broken BIOS?)\\n\",\ndrivers/edac/i5000_edac.c:861:\t\t\tPCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_I5000_BRANCH_0);\ndrivers/edac/i5000_edac.c-862-\n--\ndrivers/edac/i5000_edac.c-875-\t\tpdev = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i5000_edac.c:876:\t\t\t\tPCI_DEVICE_ID_I5000_BRANCH_1, pdev);\ndrivers/edac/i5000_edac.c-877-\n--\ndrivers/edac/i5000_edac.c-883-\t\t\t\tPCI_VENDOR_ID_INTEL,\ndrivers/edac/i5000_edac.c:884:\t\t\t\tPCI_DEVICE_ID_I5000_BRANCH_1);\ndrivers/edac/i5000_edac.c-885-\n--\ndrivers/edac/i5000_edac.c=1540=static const struct pci_device_id i5000_pci_tbl[] = {\ndrivers/edac/i5000_edac.c:1541:\t{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_I5000_DEV16),\ndrivers/edac/i5000_edac.c-1542-\t .driver_data = I5000P},\n--\ndrivers/edac/i5100_edac.c=990=static int i5100_init_one(struct pci_dev *pdev, const struct pci_device_id *id)\n--\ndrivers/edac/i5100_edac.c-1023-\tch0mm = pci_get_device_func(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i5100_edac.c:1024:\t\t\t\t    PCI_DEVICE_ID_INTEL_5100_21, 0);\ndrivers/edac/i5100_edac.c-1025-\tif (!ch0mm) {\n--\ndrivers/edac/i5100_edac.c-1037-\tch1mm = pci_get_device_func(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i5100_edac.c:1038:\t\t\t\t    PCI_DEVICE_ID_INTEL_5100_22, 0);\ndrivers/edac/i5100_edac.c-1039-\tif (!ch1mm) {\n--\ndrivers/edac/i5100_edac.c-1065-\teinj = pci_get_device_func(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i5100_edac.c:1066:\t\t\t\t    PCI_DEVICE_ID_INTEL_5100_19, 0);\ndrivers/edac/i5100_edac.c-1067-\tif (!einj) {\n--\ndrivers/edac/i5100_edac.c=1204=static const struct pci_device_id i5100_pci_tbl[] = {\ndrivers/edac/i5100_edac.c-1205-\t/* Device 16, Function 0, Channel 0 Memory Map, Error Flag/Mask, ... */\ndrivers/edac/i5100_edac.c:1206:\t{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5100_16) },\ndrivers/edac/i5100_edac.c-1207-\t{ 0, }\n--\ndrivers/edac/i5400_edac.c-62- * All 3 functions of Device 16 (0,1,2) share the SAME DID and\ndrivers/edac/i5400_edac.c:63: * uses PCI_DEVICE_ID_INTEL_5400_ERR for device 16 (0,1,2),\ndrivers/edac/i5400_edac.c:64: * PCI_DEVICE_ID_INTEL_5400_FBD0 and PCI_DEVICE_ID_INTEL_5400_FBD1\ndrivers/edac/i5400_edac.c-65- * for device 21 (0,1).\n--\ndrivers/edac/i5400_edac.c=312=static const struct i5400_dev_info i5400_devs[] = {\n--\ndrivers/edac/i5400_edac.c-314-\t\t.ctl_name = \"I5400\",\ndrivers/edac/i5400_edac.c:315:\t\t.fsb_mapping_errors = PCI_DEVICE_ID_INTEL_5400_ERR,\ndrivers/edac/i5400_edac.c-316-\t},\n--\ndrivers/edac/i5400_edac.c=722=static int i5400_get_devices(struct mem_ctl_info *mci, int dev_idx)\n--\ndrivers/edac/i5400_edac.c-736-\t\tpdev = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i5400_edac.c:737:\t\t\t\t      PCI_DEVICE_ID_INTEL_5400_ERR, pdev);\ndrivers/edac/i5400_edac.c-738-\t\tif (!pdev) {\n--\ndrivers/edac/i5400_edac.c-745-\t\t\t\tPCI_VENDOR_ID_INTEL,\ndrivers/edac/i5400_edac.c:746:\t\t\t\tPCI_DEVICE_ID_INTEL_5400_ERR);\ndrivers/edac/i5400_edac.c-747-\t\t\treturn -ENODEV;\n--\ndrivers/edac/i5400_edac.c-758-\t\tpdev = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i5400_edac.c:759:\t\t\t\t      PCI_DEVICE_ID_INTEL_5400_ERR, pdev);\ndrivers/edac/i5400_edac.c-760-\t\tif (!pdev) {\n--\ndrivers/edac/i5400_edac.c-767-\t\t\t\tPCI_VENDOR_ID_INTEL,\ndrivers/edac/i5400_edac.c:768:\t\t\t\tPCI_DEVICE_ID_INTEL_5400_ERR);\ndrivers/edac/i5400_edac.c-769-\n--\ndrivers/edac/i5400_edac.c-791-\tpvt-\u003ebranch_0 = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i5400_edac.c:792:\t\t\t\t       PCI_DEVICE_ID_INTEL_5400_FBD0, NULL);\ndrivers/edac/i5400_edac.c-793-\tif (!pvt-\u003ebranch_0) {\n--\ndrivers/edac/i5400_edac.c-796-\t\t\t\"vendor 0x%x device 0x%x Func 0 (broken BIOS?)\\n\",\ndrivers/edac/i5400_edac.c:797:\t\t\tPCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5400_FBD0);\ndrivers/edac/i5400_edac.c-798-\n--\ndrivers/edac/i5400_edac.c-810-\tpvt-\u003ebranch_1 = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i5400_edac.c:811:\t\t\t\t       PCI_DEVICE_ID_INTEL_5400_FBD1, NULL);\ndrivers/edac/i5400_edac.c-812-\tif (!pvt-\u003ebranch_1) {\n--\ndrivers/edac/i5400_edac.c-817-\t\t\tPCI_VENDOR_ID_INTEL,\ndrivers/edac/i5400_edac.c:818:\t\t\tPCI_DEVICE_ID_INTEL_5400_FBD1);\ndrivers/edac/i5400_edac.c-819-\n--\ndrivers/edac/i5400_edac.c=1428=static const struct pci_device_id i5400_pci_tbl[] = {\ndrivers/edac/i5400_edac.c:1429:\t{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5400_ERR)},\ndrivers/edac/i5400_edac.c-1430-\t{0,}\t\t\t/* 0 terminated list. */\n--\ndrivers/edac/i7300_edac.c=80=static const struct i7300_dev_info i7300_devs[] = {\n--\ndrivers/edac/i7300_edac.c-82-\t\t.ctl_name = \"I7300\",\ndrivers/edac/i7300_edac.c:83:\t\t.fsb_mapping_errors = PCI_DEVICE_ID_INTEL_I7300_MCH_ERR,\ndrivers/edac/i7300_edac.c-84-\t},\n--\ndrivers/edac/i7300_edac.c=917=static void i7300_put_devices(struct mem_ctl_info *mci)\n--\ndrivers/edac/i7300_edac.c-937- * I7300 devices used by this driver:\ndrivers/edac/i7300_edac.c:938: *    Device 16, functions 0,1 and 2:\tPCI_DEVICE_ID_INTEL_I7300_MCH_ERR\ndrivers/edac/i7300_edac.c:939: *    Device 21 function 0:\t\tPCI_DEVICE_ID_INTEL_I7300_MCH_FB0\ndrivers/edac/i7300_edac.c:940: *    Device 22 function 0:\t\tPCI_DEVICE_ID_INTEL_I7300_MCH_FB1\ndrivers/edac/i7300_edac.c-941- */\ndrivers/edac/i7300_edac.c=942=static int i7300_get_devices(struct mem_ctl_info *mci)\n--\ndrivers/edac/i7300_edac.c-951-\twhile ((pdev = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i7300_edac.c:952:\t\t\t\t      PCI_DEVICE_ID_INTEL_I7300_MCH_ERR,\ndrivers/edac/i7300_edac.c-953-\t\t\t\t      pdev))) {\n--\ndrivers/edac/i7300_edac.c-975-\t\t\tPCI_VENDOR_ID_INTEL,\ndrivers/edac/i7300_edac.c:976:\t\t\tPCI_DEVICE_ID_INTEL_I7300_MCH_ERR);\ndrivers/edac/i7300_edac.c-977-\t\tgoto error;\n--\ndrivers/edac/i7300_edac.c-993-\tpvt-\u003epci_dev_2x_0_fbd_branch[0] = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i7300_edac.c:994:\t\t\t\t\t    PCI_DEVICE_ID_INTEL_I7300_MCH_FB0,\ndrivers/edac/i7300_edac.c-995-\t\t\t\t\t    NULL);\n--\ndrivers/edac/i7300_edac.c-999-\t\t\t\"vendor 0x%x device 0x%x Func 0 (broken BIOS?)\\n\",\ndrivers/edac/i7300_edac.c:1000:\t\t\tPCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_I7300_MCH_FB0);\ndrivers/edac/i7300_edac.c-1001-\t\tgoto error;\n--\ndrivers/edac/i7300_edac.c-1004-\tpvt-\u003epci_dev_2x_0_fbd_branch[1] = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i7300_edac.c:1005:\t\t\t\t\t    PCI_DEVICE_ID_INTEL_I7300_MCH_FB1,\ndrivers/edac/i7300_edac.c-1006-\t\t\t\t\t    NULL);\n--\ndrivers/edac/i7300_edac.c-1012-\t\t\tPCI_VENDOR_ID_INTEL,\ndrivers/edac/i7300_edac.c:1013:\t\t\tPCI_DEVICE_ID_INTEL_I7300_MCH_FB1);\ndrivers/edac/i7300_edac.c-1014-\t\tgoto error;\n--\ndrivers/edac/i7300_edac.c=1177=static const struct pci_device_id i7300_pci_tbl[] = {\ndrivers/edac/i7300_edac.c:1178:\t{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_I7300_MCH_ERR)},\ndrivers/edac/i7300_edac.c-1179-\t{0,}\t\t\t/* 0 terminated list. */\n--\ndrivers/edac/i7core_edac.c=284=static const struct pci_id_descr pci_dev_descr_i7core_nehalem[] = {\ndrivers/edac/i7core_edac.c-285-\t\t/* Memory controller */\ndrivers/edac/i7core_edac.c:286:\t{ PCI_DESCR(3, 0, PCI_DEVICE_ID_INTEL_I7_MCR)     },\ndrivers/edac/i7core_edac.c:287:\t{ PCI_DESCR(3, 1, PCI_DEVICE_ID_INTEL_I7_MC_TAD)  },\ndrivers/edac/i7core_edac.c-288-\t\t\t/* Exists only for RDIMM */\ndrivers/edac/i7core_edac.c:289:\t{ PCI_DESCR(3, 2, PCI_DEVICE_ID_INTEL_I7_MC_RAS), .optional = 1  },\ndrivers/edac/i7core_edac.c:290:\t{ PCI_DESCR(3, 4, PCI_DEVICE_ID_INTEL_I7_MC_TEST) },\ndrivers/edac/i7core_edac.c-291-\ndrivers/edac/i7core_edac.c-292-\t\t/* Channel 0 */\ndrivers/edac/i7core_edac.c:293:\t{ PCI_DESCR(4, 0, PCI_DEVICE_ID_INTEL_I7_MC_CH0_CTRL) },\ndrivers/edac/i7core_edac.c:294:\t{ PCI_DESCR(4, 1, PCI_DEVICE_ID_INTEL_I7_MC_CH0_ADDR) },\ndrivers/edac/i7core_edac.c:295:\t{ PCI_DESCR(4, 2, PCI_DEVICE_ID_INTEL_I7_MC_CH0_RANK) },\ndrivers/edac/i7core_edac.c:296:\t{ PCI_DESCR(4, 3, PCI_DEVICE_ID_INTEL_I7_MC_CH0_TC)   },\ndrivers/edac/i7core_edac.c-297-\ndrivers/edac/i7core_edac.c-298-\t\t/* Channel 1 */\ndrivers/edac/i7core_edac.c:299:\t{ PCI_DESCR(5, 0, PCI_DEVICE_ID_INTEL_I7_MC_CH1_CTRL) },\ndrivers/edac/i7core_edac.c:300:\t{ PCI_DESCR(5, 1, PCI_DEVICE_ID_INTEL_I7_MC_CH1_ADDR) },\ndrivers/edac/i7core_edac.c:301:\t{ PCI_DESCR(5, 2, PCI_DEVICE_ID_INTEL_I7_MC_CH1_RANK) },\ndrivers/edac/i7core_edac.c:302:\t{ PCI_DESCR(5, 3, PCI_DEVICE_ID_INTEL_I7_MC_CH1_TC)   },\ndrivers/edac/i7core_edac.c-303-\ndrivers/edac/i7core_edac.c-304-\t\t/* Channel 2 */\ndrivers/edac/i7core_edac.c:305:\t{ PCI_DESCR(6, 0, PCI_DEVICE_ID_INTEL_I7_MC_CH2_CTRL) },\ndrivers/edac/i7core_edac.c:306:\t{ PCI_DESCR(6, 1, PCI_DEVICE_ID_INTEL_I7_MC_CH2_ADDR) },\ndrivers/edac/i7core_edac.c:307:\t{ PCI_DESCR(6, 2, PCI_DEVICE_ID_INTEL_I7_MC_CH2_RANK) },\ndrivers/edac/i7core_edac.c:308:\t{ PCI_DESCR(6, 3, PCI_DEVICE_ID_INTEL_I7_MC_CH2_TC)   },\ndrivers/edac/i7core_edac.c-309-\n--\ndrivers/edac/i7core_edac.c-316-\t */\ndrivers/edac/i7core_edac.c:317:\t{ PCI_DESCR(0, 0, PCI_DEVICE_ID_INTEL_I7_NONCORE)  },\ndrivers/edac/i7core_edac.c-318-\n--\ndrivers/edac/i7core_edac.c=321=static const struct pci_id_descr pci_dev_descr_lynnfield[] = {\ndrivers/edac/i7core_edac.c:322:\t{ PCI_DESCR( 3, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_MCR)         },\ndrivers/edac/i7core_edac.c:323:\t{ PCI_DESCR( 3, 1, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_TAD)      },\ndrivers/edac/i7core_edac.c:324:\t{ PCI_DESCR( 3, 4, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_TEST)     },\ndrivers/edac/i7core_edac.c-325-\ndrivers/edac/i7core_edac.c:326:\t{ PCI_DESCR( 4, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH0_CTRL) },\ndrivers/edac/i7core_edac.c:327:\t{ PCI_DESCR( 4, 1, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH0_ADDR) },\ndrivers/edac/i7core_edac.c:328:\t{ PCI_DESCR( 4, 2, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH0_RANK) },\ndrivers/edac/i7core_edac.c:329:\t{ PCI_DESCR( 4, 3, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH0_TC)   },\ndrivers/edac/i7core_edac.c-330-\ndrivers/edac/i7core_edac.c:331:\t{ PCI_DESCR( 5, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH1_CTRL) },\ndrivers/edac/i7core_edac.c:332:\t{ PCI_DESCR( 5, 1, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH1_ADDR) },\ndrivers/edac/i7core_edac.c:333:\t{ PCI_DESCR( 5, 2, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH1_RANK) },\ndrivers/edac/i7core_edac.c:334:\t{ PCI_DESCR( 5, 3, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH1_TC)   },\ndrivers/edac/i7core_edac.c-335-\n--\ndrivers/edac/i7core_edac.c-339-\t */\ndrivers/edac/i7core_edac.c:340:\t{ PCI_DESCR( 0, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE)     },\ndrivers/edac/i7core_edac.c-341-};\n--\ndrivers/edac/i7core_edac.c=343=static const struct pci_id_descr pci_dev_descr_i7core_westmere[] = {\ndrivers/edac/i7core_edac.c-344-\t\t/* Memory controller */\ndrivers/edac/i7core_edac.c:345:\t{ PCI_DESCR(3, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_MCR_REV2)     },\ndrivers/edac/i7core_edac.c:346:\t{ PCI_DESCR(3, 1, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_TAD_REV2)  },\ndrivers/edac/i7core_edac.c-347-\t\t\t/* Exists only for RDIMM */\ndrivers/edac/i7core_edac.c:348:\t{ PCI_DESCR(3, 2, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_RAS_REV2), .optional = 1  },\ndrivers/edac/i7core_edac.c:349:\t{ PCI_DESCR(3, 4, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_TEST_REV2) },\ndrivers/edac/i7core_edac.c-350-\ndrivers/edac/i7core_edac.c-351-\t\t/* Channel 0 */\ndrivers/edac/i7core_edac.c:352:\t{ PCI_DESCR(4, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH0_CTRL_REV2) },\ndrivers/edac/i7core_edac.c:353:\t{ PCI_DESCR(4, 1, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH0_ADDR_REV2) },\ndrivers/edac/i7core_edac.c:354:\t{ PCI_DESCR(4, 2, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH0_RANK_REV2) },\ndrivers/edac/i7core_edac.c:355:\t{ PCI_DESCR(4, 3, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH0_TC_REV2)   },\ndrivers/edac/i7core_edac.c-356-\ndrivers/edac/i7core_edac.c-357-\t\t/* Channel 1 */\ndrivers/edac/i7core_edac.c:358:\t{ PCI_DESCR(5, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH1_CTRL_REV2) },\ndrivers/edac/i7core_edac.c:359:\t{ PCI_DESCR(5, 1, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH1_ADDR_REV2) },\ndrivers/edac/i7core_edac.c:360:\t{ PCI_DESCR(5, 2, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH1_RANK_REV2) },\ndrivers/edac/i7core_edac.c:361:\t{ PCI_DESCR(5, 3, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH1_TC_REV2)   },\ndrivers/edac/i7core_edac.c-362-\ndrivers/edac/i7core_edac.c-363-\t\t/* Channel 2 */\ndrivers/edac/i7core_edac.c:364:\t{ PCI_DESCR(6, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH2_CTRL_REV2) },\ndrivers/edac/i7core_edac.c:365:\t{ PCI_DESCR(6, 1, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH2_ADDR_REV2) },\ndrivers/edac/i7core_edac.c:366:\t{ PCI_DESCR(6, 2, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH2_RANK_REV2) },\ndrivers/edac/i7core_edac.c:367:\t{ PCI_DESCR(6, 3, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH2_TC_REV2)   },\ndrivers/edac/i7core_edac.c-368-\ndrivers/edac/i7core_edac.c-369-\t\t/* Generic Non-core registers */\ndrivers/edac/i7core_edac.c:370:\t{ PCI_DESCR(0, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE_REV2)  },\ndrivers/edac/i7core_edac.c-371-\n--\ndrivers/edac/i7core_edac.c=385=static const struct pci_device_id i7core_pci_tbl[] = {\ndrivers/edac/i7core_edac.c:386:\t{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_X58_HUB_MGMT)},\ndrivers/edac/i7core_edac.c:387:\t{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LYNNFIELD_QPI_LINK0)},\ndrivers/edac/i7core_edac.c-388-\t{ 0, }\n--\ndrivers/edac/i7core_edac.c=1295=static int i7core_get_onedevice(struct pci_dev **prev,\n--\ndrivers/edac/i7core_edac.c-1314-\t */\ndrivers/edac/i7core_edac.c:1315:\tif (dev_descr-\u003edev_id == PCI_DEVICE_ID_INTEL_I7_NONCORE \u0026\u0026 !pdev) {\ndrivers/edac/i7core_edac.c-1316-\t\tpci_dev_get(*prev);\t/* pci_get_device will put it */\ndrivers/edac/i7core_edac.c-1317-\t\tpdev = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/i7core_edac.c:1318:\t\t\t\t      PCI_DEVICE_ID_INTEL_I7_NONCORE_ALT, *prev);\ndrivers/edac/i7core_edac.c-1319-\t}\ndrivers/edac/i7core_edac.c-1320-\ndrivers/edac/i7core_edac.c:1321:\tif (dev_descr-\u003edev_id == PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE \u0026\u0026\ndrivers/edac/i7core_edac.c-1322-\t    !pdev) {\n--\n\n"
}

gemini-3.8-flash

null

null

							input: 20257
							output: 40
							thoughts: 94
						

**EDAC Driver Investigation**

Okay, time to dig into some EDAC driver code. I need to understand how these error detection and correction modules are working, specifically for these chipsets. My immediate focus is on `drivers/edac/e752x_edac.c`, `drivers/edac/i3000_edac.c`, and `drivers/edac/x38_edac.c`. I'm going to start by examining the PCI ID tables. I want to see how these drivers are identifying and attaching to the specific hardware. I'll be looking closely at `i3000_pci_tbl`, `x38_pci_tbl`, and `e752x_pci_tbl`. These tables should reveal the PCI device IDs and vendor IDs that these drivers are designed to support. This is the first step to understanding the overall EDAC implementation and how the drivers handle different hardware revisions and manufacturers.

{
  "Expression": "_pci_tbl",
  "PathPrefix": "drivers/edac/i3000_edac.c"
}

{
  "Output": "drivers/edac/i3000_edac.c=472=static void i3000_remove_one(struct pci_dev *pdev)\n--\ndrivers/edac/i3000_edac.c-489-\ndrivers/edac/i3000_edac.c:490:static const struct pci_device_id i3000_pci_tbl[] = {\ndrivers/edac/i3000_edac.c-491-\t{\n--\ndrivers/edac/i3000_edac.c-498-\ndrivers/edac/i3000_edac.c:499:MODULE_DEVICE_TABLE(pci, i3000_pci_tbl);\ndrivers/edac/i3000_edac.c-500-\ndrivers/edac/i3000_edac.c=501=static struct pci_driver i3000_driver = {\n--\ndrivers/edac/i3000_edac.c-504-\t.remove = i3000_remove_one,\ndrivers/edac/i3000_edac.c:505:\t.id_table = i3000_pci_tbl,\ndrivers/edac/i3000_edac.c-506-};\n--\ndrivers/edac/i3000_edac.c=508=static int __init i3000_init(void)\n--\ndrivers/edac/i3000_edac.c-530-\ndrivers/edac/i3000_edac.c:531:\t\tpci_rc = i3000_init_one(mci_pdev, i3000_pci_tbl);\ndrivers/edac/i3000_edac.c-532-\t\tif (pci_rc \u003c 0) {\n"
}

gemini-3.8-flash

null

null

							input: 21107
							output: 43
							thoughts: 42
						

Okay, let's dive into this. Here's how I'd approach this task, as if these were my internal thoughts:

**Analyzing EDAC Driver Implementations**

Alright, I'm going to start by taking a close look at the EDAC driver implementations. Specifically, I'm focusing on `i3000_edac.c`, `x38_edac.c`, and `e752x_edac.c`. I need to get a clear understanding of how each of these handles Error Detection and Correction (EDAC) for their respective platforms. What are the key architectural differences? Are there commonalities in their approach, or do they diverge significantly based on the chipset they support? I need to analyze the low-level details of their error handling routines, memory scrubbing mechanisms, and interrupt handling. Understanding their specific registers and how they interact with the hardware is critical. I'll be looking for any potential optimization opportunities or subtle bugs, especially those that might be platform-specific. Essentially, my goal is to build a solid mental map of how these EDAC drivers operate at a fundamental level.

{
  "File": "drivers/edac/i3000_edac.c",
  "FirstLine": 480,
  "LineCount": 60
}

{
  "Contents": " 480:\t\n 481:\t\tmci = edac_mc_del_mc(\u0026pdev-\u003edev);\n 482:\t\tif (!mci)\n 483:\t\t\treturn;\n 484:\t\n 485:\t\tedac_mc_free(mci);\n 486:\t\n 487:\t\tpci_disable_device(pdev);\n 488:\t}\n 489:\t\n 490:\tstatic const struct pci_device_id i3000_pci_tbl[] = {\n 491:\t\t{\n 492:\t\t\tPCI_VEND_DEV(INTEL, 3000_HB),\n 493:\t\t\t.driver_data = I3000,\n 494:\t\t}, {\n 495:\t\t\t/* 0 terminated list. */\n 496:\t\t}\n 497:\t};\n 498:\t\n 499:\tMODULE_DEVICE_TABLE(pci, i3000_pci_tbl);\n 500:\t\n 501:\tstatic struct pci_driver i3000_driver = {\n 502:\t\t.name = EDAC_MOD_STR,\n 503:\t\t.probe = i3000_init_one,\n 504:\t\t.remove = i3000_remove_one,\n 505:\t\t.id_table = i3000_pci_tbl,\n 506:\t};\n 507:\t\n 508:\tstatic int __init i3000_init(void)\n 509:\t{\n 510:\t\tint pci_rc;\n 511:\t\n 512:\t\tedac_dbg(3, \"MC:\\n\");\n 513:\t\n 514:\t\t/* Ensure that the OPSTATE is set correctly for POLL or NMI */\n 515:\t\topstate_init();\n 516:\t\n 517:\t\tpci_rc = pci_register_driver(\u0026i3000_driver);\n 518:\t\tif (pci_rc \u003c 0)\n 519:\t\t\tgoto fail0;\n 520:\t\n 521:\t\tif (!mci_pdev) {\n 522:\t\t\ti3000_registered = 0;\n 523:\t\t\tmci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,\n 524:\t\t\t\t\t\tPCI_DEVICE_ID_INTEL_3000_HB, NULL);\n 525:\t\t\tif (!mci_pdev) {\n 526:\t\t\t\tedac_dbg(0, \"i3000 pci_get_device fail\\n\");\n 527:\t\t\t\tpci_rc = -ENODEV;\n 528:\t\t\t\tgoto fail1;\n 529:\t\t\t}\n 530:\t\n 531:\t\t\tpci_rc = i3000_init_one(mci_pdev, i3000_pci_tbl);\n 532:\t\t\tif (pci_rc \u003c 0) {\n 533:\t\t\t\tedac_dbg(0, \"i3000 init fail\\n\");\n 534:\t\t\t\tpci_rc = -ENODEV;\n 535:\t\t\t\tgoto fail1;\n 536:\t\t\t}\n 537:\t\t}\n 538:\t\n 539:\t\treturn 0;\n"
}

gemini-3.8-flash

null

null

							input: 22333
							output: 41
							thoughts: 17
						

Here's my attempt at summarizing the thought process, tailored for an expert audience:

**Diving Deeper into the EDAC Landscape**

Okay, so we're seeing something interesting, and I'm immediately thinking, "Where else might this be lurking?" My mental checklist is running through potential culprits, and given the nature of the problem, I'm zeroing in on EDAC. I've got to investigate the core components. Given the potential impact, let's take a look at `x38_edac.c` as a likely spot. This is a common point for issues, so let's start there.

{
  "File": "drivers/edac/x38_edac.c",
  "FirstLine": 440,
  "LineCount": 60
}

{
  "Contents": " 440:\t\tmci = edac_mc_del_mc(\u0026pdev-\u003edev);\n 441:\t\tif (!mci)\n 442:\t\t\treturn;\n 443:\t\n 444:\t\tiounmap(mci-\u003epvt_info);\n 445:\t\n 446:\t\tedac_mc_free(mci);\n 447:\t\n 448:\t\tpci_disable_device(pdev);\n 449:\t}\n 450:\t\n 451:\tstatic const struct pci_device_id x38_pci_tbl[] = {\n 452:\t\t{\n 453:\t\t\tPCI_VEND_DEV(INTEL, X38_HB),\n 454:\t\t\t.driver_data = X38,\n 455:\t\t}, {\n 456:\t\t\t/* 0 terminated list. */\n 457:\t\t}\n 458:\t};\n 459:\t\n 460:\tMODULE_DEVICE_TABLE(pci, x38_pci_tbl);\n 461:\t\n 462:\tstatic struct pci_driver x38_driver = {\n 463:\t\t.name = EDAC_MOD_STR,\n 464:\t\t.probe = x38_init_one,\n 465:\t\t.remove = x38_remove_one,\n 466:\t\t.id_table = x38_pci_tbl,\n 467:\t};\n 468:\t\n 469:\tstatic int __init x38_init(void)\n 470:\t{\n 471:\t\tint pci_rc;\n 472:\t\n 473:\t\tedac_dbg(3, \"MC:\\n\");\n 474:\t\n 475:\t\t/* Ensure that the OPSTATE is set correctly for POLL or NMI */\n 476:\t\topstate_init();\n 477:\t\n 478:\t\tpci_rc = pci_register_driver(\u0026x38_driver);\n 479:\t\tif (pci_rc \u003c 0)\n 480:\t\t\tgoto fail0;\n 481:\t\n 482:\t\tif (!mci_pdev) {\n 483:\t\t\tx38_registered = 0;\n 484:\t\t\tmci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,\n 485:\t\t\t\t\t\tPCI_DEVICE_ID_INTEL_X38_HB, NULL);\n 486:\t\t\tif (!mci_pdev) {\n 487:\t\t\t\tedac_dbg(0, \"x38 pci_get_device fail\\n\");\n 488:\t\t\t\tpci_rc = -ENODEV;\n 489:\t\t\t\tgoto fail1;\n 490:\t\t\t}\n 491:\t\n 492:\t\t\tpci_rc = x38_init_one(mci_pdev, x38_pci_tbl);\n 493:\t\t\tif (pci_rc \u003c 0) {\n 494:\t\t\t\tedac_dbg(0, \"x38 init fail\\n\");\n 495:\t\t\t\tpci_rc = -ENODEV;\n 496:\t\t\t\tgoto fail1;\n 497:\t\t\t}\n 498:\t\t}\n 499:\t\n"
}

gemini-3.8-flash

null

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							input: 23407
							output: 44
							thoughts: 29
						

Here's a summary of my mental process:

**Diving into the e752x EDAC Driver**

Okay, so I need to get into the nitty-gritty of the error detection and correction code for the e752x platform. My initial thought is to zero in on the `drivers/edac/e752x_edac.c` file. This is where the core logic for handling EDAC errors on that specific hardware likely resides. I'm going to jump straight to around line 1387. I don't know exactly what I'm looking for yet, but that's a good starting point to begin my deep dive. I'm hoping that particular code section sheds some light on the error handling mechanisms implemented there.

{
  "File": "drivers/edac/e752x_edac.c",
  "FirstLine": 1380,
  "LineCount": 60
}

{
  "Contents": "1380:\t\n1381:\t\treturn -ENODEV;\n1382:\t}\n1383:\t\n1384:\t/* returns count (\u003e= 0), or negative on error */\n1385:\tstatic int e752x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)\n1386:\t{\n1387:\t\tedac_dbg(0, \"\\n\");\n1388:\t\n1389:\t\t/* wake up and enable device */\n1390:\t\tif (pcim_enable_device(pdev) \u003c 0)\n1391:\t\t\treturn -EIO;\n1392:\t\n1393:\t\treturn e752x_probe1(pdev, ent-\u003edriver_data);\n1394:\t}\n1395:\t\n1396:\tstatic void e752x_remove_one(struct pci_dev *pdev)\n1397:\t{\n1398:\t\tstruct mem_ctl_info *mci;\n1399:\t\tstruct e752x_pvt *pvt;\n1400:\t\n1401:\t\tedac_dbg(0, \"\\n\");\n1402:\t\n1403:\t\tif (e752x_pci)\n1404:\t\t\tedac_pci_release_generic_ctl(e752x_pci);\n1405:\t\n1406:\t\tif ((mci = edac_mc_del_mc(\u0026pdev-\u003edev)) == NULL)\n1407:\t\t\treturn;\n1408:\t\n1409:\t\tpvt = (struct e752x_pvt *)mci-\u003epvt_info;\n1410:\t\tpci_dev_put(pvt-\u003edev_d0f0);\n1411:\t\tpci_dev_put(pvt-\u003edev_d0f1);\n1412:\t\tedac_mc_free(mci);\n1413:\t}\n1414:\t\n1415:\tstatic const struct pci_device_id e752x_pci_tbl[] = {\n1416:\t\t{\n1417:\t\t\tPCI_VEND_DEV(INTEL, 7520_0),\n1418:\t\t\t.driver_data = E7520,\n1419:\t\t}, {\n1420:\t\t\tPCI_VEND_DEV(INTEL, 7525_0),\n1421:\t\t\t.driver_data = E7525,\n1422:\t\t}, {\n1423:\t\t\tPCI_VEND_DEV(INTEL, 7320_0),\n1424:\t\t\t.driver_data = E7320,\n1425:\t\t}, {\n1426:\t\t\tPCI_VEND_DEV(INTEL, 3100_0),\n1427:\t\t\t.driver_data = I3100,\n1428:\t\t}, {\n1429:\t\t\t/* 0 terminated list. */\n1430:\t\t}\n1431:\t};\n1432:\t\n1433:\tMODULE_DEVICE_TABLE(pci, e752x_pci_tbl);\n1434:\t\n1435:\tstatic struct pci_driver e752x_driver = {\n1436:\t\t.name = EDAC_MOD_STR,\n1437:\t\t.probe = e752x_init_one,\n1438:\t\t.remove = e752x_remove_one,\n1439:\t\t.id_table = e752x_pci_tbl,\n"
}

gemini-3.8-flash

null

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							input: 24611
							output: 44
							thoughts: 14
						

Here's a breakdown of how I'd approach understanding `e752x_init`, from an expert's perspective:

**Deconstructing `e752x_init`**

Alright, let's dive into this `e752x_init` function. My initial thought process involves a few key areas I'd want to investigate immediately. First, I need to know the context: what is the "e752x"? Is it a specific hardware device, a library, a module within a larger system? Knowing the scope of the target is paramount.

Then, I'd immediately start breaking down the name itself. The suffix "init" clearly points to an initialization function. So, I'm expecting this function's primary purpose is to set up some component or subsystem. "e752x" – that could be anything, but likely it represents a unique identifier for something that requires setup.

Next, I'd want to look for the implementation of the function. I'd need to examine the source code, and I'd be looking for the crucial pieces:

*   **Dependencies**: What other functions or data structures does `e752x_init` call or use? Does it rely on specific hardware registers, external configurations, or pre-existing state? Tracing dependencies is critical.
*   **Registers and Memory**: Does this function interact directly with hardware registers? Does it allocate or initialize any memory regions? I'd be looking for read/write operations to specific addresses, especially those likely related to configuration or control.
*   **Error Handling**: I'd quickly want to see if the function has any error-checking mechanisms. What happens if the initialization fails? Does it return an error code, log a message, or take other actions?
*   **State Updates**: I'd be looking for any changes to internal data structures or global variables. Does `e752x_init` update a status flag, populate a data structure representing the device's state, or modify other variables that might be used later?

In short, I'd want to understand the inputs, the side effects, and the expected outcomes of calling this initialization function. I'd begin by making some educated guesses based on the naming and context, then dive into the code to validate and refine those initial hypotheses. I'm looking for the "so what?" of this function. Why is it being called? What is it preparing for? With that, I can determine its role in the overall system.

{
  "File": "drivers/edac/e752x_edac.c",
  "FirstLine": 1440,
  "LineCount": 50
}

{
  "Contents": "1440:\t};\n1441:\t\n1442:\tstatic int __init e752x_init(void)\n1443:\t{\n1444:\t\tint pci_rc;\n1445:\t\n1446:\t\tedac_dbg(3, \"\\n\");\n1447:\t\n1448:\t\t/* Ensure that the OPSTATE is set correctly for POLL or NMI */\n1449:\t\topstate_init();\n1450:\t\n1451:\t\tpci_rc = pci_register_driver(\u0026e752x_driver);\n1452:\t\treturn (pci_rc \u003c 0) ? pci_rc : 0;\n1453:\t}\n1454:\t\n1455:\tstatic void __exit e752x_exit(void)\n1456:\t{\n1457:\t\tedac_dbg(3, \"\\n\");\n1458:\t\tpci_unregister_driver(\u0026e752x_driver);\n1459:\t}\n1460:\t\n1461:\tmodule_init(e752x_init);\n1462:\tmodule_exit(e752x_exit);\n1463:\t\n1464:\tMODULE_LICENSE(\"GPL\");\n1465:\tMODULE_AUTHOR(\"Linux Networx (http://lnxi.com) Tom Zimmerman\");\n1466:\tMODULE_DESCRIPTION(\"MC support for Intel e752x/3100 memory controllers\");\n1467:\t\n1468:\tmodule_param(force_function_unhide, int, 0444);\n1469:\tMODULE_PARM_DESC(force_function_unhide, \"if BIOS sets Dev0:Fun1 up as hidden:\"\n1470:\t\t\t \" 1=force unhide and hope BIOS doesn't fight driver for \"\n1471:\t\t\t\"Dev0:Fun1 access\");\n1472:\t\n1473:\tmodule_param(edac_op_state, int, 0444);\n1474:\tMODULE_PARM_DESC(edac_op_state, \"EDAC Error Reporting state: 0=Poll,1=NMI\");\n1475:\t\n1476:\tmodule_param(sysbus_parity, int, 0444);\n1477:\tMODULE_PARM_DESC(sysbus_parity, \"0=disable system bus parity checking,\"\n1478:\t\t\t\" 1=enable system bus parity checking, default=auto-detect\");\n1479:\tmodule_param(report_non_memory_errors, int, 0644);\n1480:\tMODULE_PARM_DESC(report_non_memory_errors, \"0=disable non-memory error \"\n1481:\t\t\t\"reporting, 1=enable non-memory error reporting\");\n"
}

gemini-3.8-flash

null

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							input: 25946
							output: 37
							thoughts: 815
						

**Analyzing EDAC Driver Changes and Virtualization Compatibility**

Okay, let's break this down. First, I need to understand the patch's impact. It looks like we're looking at changes in the EDAC (Error Detection and Correction) drivers, specifically for older Intel chipsets. The changes seem pretty straightforward:

*   In `e752x_edac.c`, `pci_enable_device` has been replaced with `pcim_enable_device`. This is likely a safe improvement for resource management within the PCI subsystem, nothing major to worry about there.
*   In `i3000_edac.c` and `x38_edac.c`, they've added `pci_disable_device(pdev)` after the probe functions (`i3000_probe1`, `x38_probe1`) in the `init_one` routines and to the `remove_one` routines. This is interesting. This looks like error handling. If the probe fails, the device will be disabled. This is likely to prevent issues with attempting to use a partially initialized device.

Now, let's refresh our memory of the hardware. We're dealing with the Intel E7520, E7525, E7320, 3100 chipsets (server memory controllers from roughly 2004-2006), the i3000 and 3010 chipsets (server memory controllers from ~2006) and the X38 / X48 chipsets (desktop/workstation memory controllers from ~2007).

The key question now is: are these actually relevant in modern virtualized environments? Are any of these ancient chipsets likely to be emulated in QEMU or used by major cloud providers like GCE? The standard QEMU machines for x86\_64 ('pc', 'q35', 'microvm') certainly don't advertise these older chipsets.

I'll double-check QEMU's emulation details. The only Intel host bridges that QEMU explicitly emulates are the i440FX and Q35. Nope, no luck there either.

Let's verify by PCI IDs. I'll need to confirm if these devices are even reachable. I'll check:
*   E7520: 0x3590
*   E7525: 0x359E
*   E7320: 0x3592
*   3100: 0x35B0
*   3000\_HB: 0x2778 or similar.
*   X38\_HB: 0x29e0 or similar.

Time to search `include/linux/pci_ids.h` for `PCI_DEVICE_ID_INTEL_3000_HB` just to be certain. Based on this, it seems highly unlikely these drivers are actively used in standard, modern virtualized environments. These changes are likely relevant to very specific, potentially legacy, hardware configurations that are unlikely to be very common. Still, it's good to keep track of these edge cases, especially for EDAC, as we always want to maximize hardware compatibility.

{
  "Expression": "PCI_DEVICE_ID_INTEL_3000_HB",
  "PathPrefix": "include/"
}

{
  "Output": "include/linux/pci_ids.h-2878-#define PCI_DEVICE_ID_INTEL_82945G_IG\t0x2772\ninclude/linux/pci_ids.h:2879:#define PCI_DEVICE_ID_INTEL_3000_HB\t0x2778\ninclude/linux/pci_ids.h-2880-#define PCI_DEVICE_ID_INTEL_82945GM_HB\t0x27a0\n"
}

gemini-3.8-flash

null

null

							input: 27652
							output: 36
							thoughts: 21
						

Okay, here's my interpretation of that thought as a summary:

**Digging into Intel's X38 Hub**

Alright, I'm already deep in this code, trying to understand how this system is behaving. I've been tracing through a specific area, and now I need to expand my search. My immediate thought is, "Let's use `grep` to quickly find every instance related to `PCI_DEVICE_ID_INTEL_X38_HB`." This device ID is key – it's going to point me directly to the relevant definitions, initializations, and any potential configuration or handling code associated with the Intel X38 Host Bridge. That `grep` command will be a powerful tool to immediately cut through the noise and zero in on the information I need, given I have already tried alternative ways of arriving at the needed information.

no matches

{
  "Expression": "PCI_DEVICE_ID_INTEL_X38_HB",
  "PathPrefix": "include/"
}

{
  "error": "no matches"
}

gemini-3.8-flash

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							input: 27906
							output: 39
							thoughts: 24
						

Here's my summary, as though I'm thinking through this process:

**Hunting Down That Intel X38 Hub Controller ID**

Okay, so I need to track down the PCI device ID for the Intel X38 Hub Controller. My goal is to find where this is defined within the `drivers/edac/` directory. That's the most likely place for memory controller related definitions, given that EDAC (Error Detection and Correction) deals with memory and potentially device-specific configuration. Let's start digging. I'll need to use my expert knowledge of the kernel source tree structure and probable file naming conventions within the EDAC subsystem to pinpoint the most promising files. I'll probably start with a `grep` or similar search tool to quickly scan the files for something like "PCI_DEVICE_ID_INTEL_X38_HB." I'm mentally filing away that I might need to consider variations, aliases, or related identifiers used by Intel in their documentation. Might be in a header file or perhaps defined inline within a driver file. Let's get cracking.

{
  "Expression": "PCI_DEVICE_ID_INTEL_X38_HB",
  "PathPrefix": "drivers/edac/"
}

{
  "Output": "drivers/edac/x38_edac.c-22-\ndrivers/edac/x38_edac.c:23:#define PCI_DEVICE_ID_INTEL_X38_HB\t0x29e0\ndrivers/edac/x38_edac.c-24-\n--\ndrivers/edac/x38_edac.c=469=static int __init x38_init(void)\n--\ndrivers/edac/x38_edac.c-484-\t\tmci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,\ndrivers/edac/x38_edac.c:485:\t\t\t\t\tPCI_DEVICE_ID_INTEL_X38_HB, NULL);\ndrivers/edac/x38_edac.c-486-\t\tif (!mci_pdev) {\n"
}

gemini-3.8-flash

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							input: 28428
							output: 54
							thoughts: 1645
						

**Analysis of Intel EDAC Driver Reachability and Fuzzing Potential**

Okay, let's break this down. First, I'm looking at how these Intel EDAC drivers, `i3000`, `x38`, and `e752x`, are initialized. It's clear that the initialization routines (`i3000_init`, `x38_init`, etc.) all follow a similar pattern: they register a PCI driver and then attempt to locate the corresponding hardware device using `pci_get_device`. If the device isn't found during probe, or if the device doesn't exist on the bus after probing, initialization fails with `-ENODEV`. This means these drivers are *dependent* on the physical presence of specific Intel chipsets – the 3000, X38, and E752x families.

I know, from experience, that standard virtualization environments like QEMU and GCE *do not* emulate these legacy Intel host bridges/memory controllers. QEMU uses i440FX or Q35, and GCE, well, it's a cloud environment, and I *know* it doesn't expose these particular chipsets to the virtual machines. So, if these chipsets are not emulated, they're not available to the VM. And that means the drivers are never going to successfully probe. There isn't any way, *currently*, for syzkaller or a user to create a virtual PCI device that would trigger the drivers.  PCI devices are instantiated by the hypervisor at boot time. I've considered mocking and fake drivers, and virtme, but I know the kernel doesn't have virtual mock PCI device for Intel memory controllers.

This brings me to the critical part: the implications for fuzzing. Section 2 of the document lays it out pretty clearly: "REACHABILITY IS THE PRIMARY GATE".  If the code is unreachable in a standard virtualized environment, it *should not* be fuzzed.  The key phrase is "structurally unreachable hardware".  This *definitely* falls into that category. We're talking about drivers for hardware that isn't present in the environment where the fuzzing is taking place.

Now, let's drill down into the patch itself. It primarily involves changes in the probe and remove callbacks within `e752x_edac.c`, `i3000_edac.c`, and `x38_edac.c`. The core change in `e752x_init_one` is that `pci_enable_device(pdev)` is now `pcim_enable_device(pdev)`.  In the `i3000` and `x38` drivers, there are modifications to handle probe failures, and in the remove callbacks. These changes focus on enabling and disabling PCI devices, which are triggered by the legacy hardware not being present in the probed environment, as well as the teardown callbacks in `.remove`. The teardown is, again, mentioned in Section 2 as only being executed with hot-unplugging or sysfs driver unbinding. This also seems unlikely, and as Section 2 states: these drivers are "structurally unreachable".

The files involved are legacy drivers for physical motherboard chipsets from around 2004-2007, things like Intel E7520, 3000, and X38. The fact that the target hardware is from that era further reinforces the point.

Finally, checking the `Kconfig` file (`drivers/edac/Kconfig`) simply confirms that these drivers are part of the EDAC subsystem.

In short:  These patches are *almost certainly* targeting code that is unreachable in the fuzzing environment.  The hardware these drivers are designed to interact with is simply not present, and will likely never be. The changes are minor, mostly cleanup, and do not make the code any more reachable. Fuzzing this code is not a viable use of resources. We need to focus on drivers that have a fighting chance of executing within a standard virtualized environment.

{
  "Expression": "config EDAC_I3000|config EDAC_X38|config EDAC_E752X",
  "PathPrefix": "drivers/edac/Kconfig"
}

{
  "Output": "drivers/edac/Kconfig=139=config EDAC_E7XXX\n--\ndrivers/edac/Kconfig-145-\ndrivers/edac/Kconfig:146:config EDAC_E752X\ndrivers/edac/Kconfig-147-\ttristate \"Intel e752x (e7520, e7525, e7320) and 3100\"\n--\ndrivers/edac/Kconfig=160=config EDAC_I82975X\n--\ndrivers/edac/Kconfig-166-\ndrivers/edac/Kconfig:167:config EDAC_I3000\ndrivers/edac/Kconfig-168-\ttristate \"Intel 3000/3010\"\n--\ndrivers/edac/Kconfig=181=config EDAC_IE31200\n--\ndrivers/edac/Kconfig-187-\ndrivers/edac/Kconfig:188:config EDAC_X38\ndrivers/edac/Kconfig-189-\ttristate \"Intel X38\"\n"
}

gemini-3.8-flash

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							input: 31302
							output: 35
							thoughts: 9
						

Here's my attempt at summarizing the thought process, tailored for an expert audience:

**Analyzing the Kconfig Entries**

Okay, so I'm diving into this. Time to get down to the nitty-gritty. Let's start with a thorough check of the Kconfig entries. I need to understand the dependencies, the default configurations, and any conditional build options that are in play. I'm going to pay close attention to the relationships between the different modules and features. Are there any potential conflicts lurking? Any obvious redundancies? This initial assessment is critical; it'll set the stage for any modifications or debug efforts. I'll be looking for well-defined symbols, clear help text, and consistent naming conventions. I'll need to confirm that everything is structured correctly for the target architecture and the intended use case. Ultimately, this will give me a solid foundation for the subsequent steps, whatever they might be. It's about ensuring a robust and maintainable configuration.

{
  "File": "drivers/edac/Kconfig",
  "FirstLine": 146,
  "LineCount": 45
}

{
  "Contents": " 146:\tconfig EDAC_E752X\n 147:\t\ttristate \"Intel e752x (e7520, e7525, e7320) and 3100\"\n 148:\t\tdepends on PCI \u0026\u0026 X86\n 149:\t\thelp\n 150:\t\t  Support for error detection and correction on the Intel\n 151:\t\t  E7520, E7525, E7320 server chipsets.\n 152:\t\n 153:\tconfig EDAC_I82875P\n 154:\t\ttristate \"Intel 82875p (D82875P, E7210)\"\n 155:\t\tdepends on PCI \u0026\u0026 X86_32\n 156:\t\thelp\n 157:\t\t  Support for error detection and correction on the Intel\n 158:\t\t  DP82785P and E7210 server chipsets.\n 159:\t\n 160:\tconfig EDAC_I82975X\n 161:\t\ttristate \"Intel 82975x (D82975x)\"\n 162:\t\tdepends on PCI \u0026\u0026 X86\n 163:\t\thelp\n 164:\t\t  Support for error detection and correction on the Intel\n 165:\t\t  DP82975x server chipsets.\n 166:\t\n 167:\tconfig EDAC_I3000\n 168:\t\ttristate \"Intel 3000/3010\"\n 169:\t\tdepends on PCI \u0026\u0026 X86\n 170:\t\thelp\n 171:\t\t  Support for error detection and correction on the Intel\n 172:\t\t  3000 and 3010 server chipsets.\n 173:\t\n 174:\tconfig EDAC_I3200\n 175:\t\ttristate \"Intel 3200\"\n 176:\t\tdepends on PCI \u0026\u0026 X86\n 177:\t\thelp\n 178:\t\t  Support for error detection and correction on the Intel\n 179:\t\t  3200 and 3210 server chipsets.\n 180:\t\n 181:\tconfig EDAC_IE31200\n 182:\t\ttristate \"Intel e312xx\"\n 183:\t\tdepends on PCI \u0026\u0026 X86 \u0026\u0026 X86_MCE_INTEL\n 184:\t\thelp\n 185:\t\t  Support for error detection and correction on the Intel\n 186:\t\t  E3-1200 based DRAM controllers.\n 187:\t\n 188:\tconfig EDAC_X38\n 189:\t\ttristate \"Intel X38\"\n 190:\t\tdepends on PCI \u0026\u0026 X86\n"
}

gemini-3.8-flash

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							input: 32297
							output: 151
							thoughts: 838
						

**Analysis of EDAC Driver Patches for Fuzzing Suitability**

Okay, let's break this down. My immediate concern is whether these driver modifications are even *reachable* within the standard syzkaller setup. I'm thinking about the QEMU environments, typically `-machine q35` or `-machine pc`, or GCE. These environments don't emulate the physical silicon of host bridge memory controllers like the E7520, E7525, E7320, 3100, 3000, or X38 chipsets.

The EDAC drivers specifically read memory controller configuration registers, specific to these physical chipsets. So, even if someone were to compile these with `CONFIG_EDAC_E752X=y`, `CONFIG_EDAC_I3000=y`, `CONFIG_EDAC_X38=y`, the driver initialization will *always* fail with an `-ENODEV` error. The `.probe` function will never be invoked, and therefore the `.remove` function will never be reached either. It's structurally unreachable hardware, no matter how you slice it.

Let's double-check the negative criteria in Section 2, just to be sure. Yep, structurally unreachable hardware is a perfect fit here. Specifically, vendor-specific PCIe switches, SmartNICs, or GPU drivers requiring physical ASIC/PCIe cards, such as those relying on physical cards like mlxsw, pds_core, qed, ionic, amdgpu, are not emulated. Also, driver teardown callbacks (.remove, .shutdown, pci_unregister_driver) executed only during physical PCI hot-unplug or manual sysfs driver unbinding fall into this.

Specifically, the patch modifies three drivers: `e752x_edac.c`, `i3000_edac.c`, and `x38_edac.c`. All of these relate to Intel legacy chipsets: E7520/E7525/E7320/3100, 3000/3010, and X38. The changes involve `.probe` and `.remove` calls. And the `.remove` callbacks are essentially teardown paths, important to note.

So, in summary: the modified code within these drivers is *unreachable* in the standard fuzzing environments because it targets specific physical hardware that's not emulated. The `.probe` and `.remove` calls are never going to be executed.

Therefore, for the `set-results` fields:

*   `WorthFuzzing` should be `false`.
*   `EnableConfigs` should be `[]` or `null`.
*   `FocusSymbols` should be `[]` or `null`.

And let's make the reasoning very clear:

*   The patch modifies probe error handling, device initialization, and remove callbacks across three legacy Intel EDAC drivers (`e752x_edac`, `i3000_edac`, and `x38_edac`).
*   These drivers target specific physical Intel server/workstation chipsets (E7520/E7525/E7320/3100, 3000/3010, and X38) that require physical hardware and are not emulated in standard virtualized environments (QEMU or GCE).
*   Consequently, these drivers will not match any PCI devices in standard fuzzing environments and the modified code is structurally unreachable.

Okay, let's call `set-results` now.

{
  "EnableConfigs": [],
  "FocusSymbols": [],
  "Reasoning": "The modified code touches legacy Intel EDAC drivers (e752x_edac, i3000_edac, and x38_edac) for specific physical memory controller chipsets (E7520/E7525/E7320/3100, 3000/3010, and X38). These hardware chipsets are not emulated in standard virtualized fuzzing environments (QEMU/GCE), making the probe, error unwinding, and remove routines structurally unreachable.",
  "WorthFuzzing": false
}

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The modified code touches legacy Intel EDAC drivers (e752x_edac, i3000_edac, and x38_edac) for specific physical memory controller chipsets (E7520/E7525/E7320/3100, 3000/3010, and X38). These hardware chipsets are not emulated in standard virtualized fuzzing environments (QEMU/GCE), making the probe, error unwinding, and remove routines structurally unreachable.",
  "WorthFuzzing": false
}

{
  "WorthFuzzing": false
}

null