rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10455 ticks this GP) idle=4394/1/0x4000000000000000 softirq=16528/16529 fqs=5028
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   944024          1            0
rcu: 	cputime:    31740      20759           54   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=8597 q=3589 ncpus=2)
CPU: 0 UID: 0 PID: 6049 Comm: syz.1.18 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:80 [inline]
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:102 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
RIP: 0010:unwind_next_frame+0x130e/0x2390 arch/x86/kernel/unwind_orc.c:494
Code: c1 e8 3f 48 01 c8 48 83 e0 fe 4c 8d 3c 45 00 00 00 00 49 01 ef 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 75 27 49 63 07 4c 01 f8 49 8d 4f 04 4c 39 e0 48 0f 46 e9 49
RSP: 0018:ffffc90000006d38 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffffffff8fbdfc48 RCX: dffffc0000000000
RDX: ffffffff8fbdfc28 RSI: ffffffff903deb7a RDI: ffffffff8be29f20
RBP: ffffffff8fbdfc28 R08: 0000000000000009 R09: ffffffff8172aae5
R10: ffffc90000006e58 R11: ffffffff81acf520 R12: ffffffff82186a09
R13: ffffffff8fbdfc28 R14: ffffc90000006e08 R15: ffffffff8fbdfc38
FS:  00007f7e9783c6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7e9783bfc8 CR3: 0000000024686000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000090602
Call Trace:
 <IRQ>
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4328 [inline]
 __kmalloc_noprof+0x27a/0x4f0 mm/slub.c:4340
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 cfg80211_inform_single_bss_data+0x905/0x1ac0 net/wireless/scan.c:2339
 cfg80211_inform_bss_data+0x1fb/0x3b20 net/wireless/scan.c:3222
 cfg80211_inform_bss_frame_data+0x3d7/0x730 net/wireless/scan.c:3313
 ieee80211_bss_info_update+0x746/0x9e0 net/mac80211/scan.c:226
 ieee80211_scan_rx+0x593/0xa20 net/mac80211/scan.c:355
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5183 [inline]
 ieee80211_rx_list+0x22fc/0x2d80 net/mac80211/rx.c:5420
 ieee80211_rx_napi+0x1a8/0x3d0 net/mac80211/rx.c:5443
 ieee80211_rx include/net/mac80211.h:5185 [inline]
 ieee80211_handle_queued_frames+0xe8/0x1f0 net/mac80211/main.c:441
 tasklet_action_common+0x36c/0x580 kernel/softirq.c:829
 handle_softirqs+0x286/0x870 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738
RIP: 0010:preempt_schedule_irq+0xb0/0x150 kernel/sched/core.c:7109
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 5b 22 21 f6 e8 96 f5 57 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc9000350fba0 EFLAGS: 00000286
RAX: 8abf3a12edba6c00 RBX: 0000000000000000 RCX: 8abf3a12edba6c00
RDX: 0000000000000006 RSI: ffffffff8d998701 RDI: 0000000000000001
RBP: ffffc9000350fc40 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920006a1f74
 irqentry_exit+0x6f/0x90 kernel/entry/common.c:307
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__do_sys_perf_event_open kernel/events/core.c:13692 [inline]
RIP: 0010:__se_sys_perf_event_open+0x193a/0x1d70 kernel/events/core.c:13333
Code: 00 00 00 fc ff df 0f b6 04 08 84 c0 0f 85 1a 03 00 00 48 8b 74 24 10 8b 96 0c 03 00 00 48 8b 5c 24 28 48 89 df e8 e6 48 00 00 <48> 89 df e8 6e 23 ff ff 48 8b 7c 24 60 e8 84 cf 7f 09 80 7c 24 20
RSP: 0018:ffffc9000350fd00 EFLAGS: 00000246
RAX: 8abf3a12edba6c00 RBX: ffff888024c11400 RCX: ffff888106e23980
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000350fee0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff888024c11550
R13: ffff88801ce82bc0 R14: ffff888106e23980 R15: 1ffff920006a1fb0
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7e9698eb69
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7e9783c038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f7e96bb5fa0 RCX: 00007f7e9698eb69
RDX: bfffffffffffffff RSI: 0000000000000000 RDI: 0000200000000180
RBP: 00007f7e96a11df1 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7e96bb5fa0 R15: 00007ffff0332358
 </TASK>
sched: DL replenish lagged too much
