clocksource: Long readout interval, skipping watchdog check: cs_nsec: 34260006588 wd_nsec: 34260006253
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10499 ticks this GP) idle=438c/1/0x4000000000000000 softirq=14795/14798 fqs=3
rcu: 	(t=10500 jiffies g=7529 q=444 ncpus=2)
rcu: rcu_preempt kthread starved for 10494 jiffies! g7529 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27320 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5911 Comm: syz.2.6 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-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:kasan_check_range+0x1d4/0x2c0
Code: 01 f3 49 8d 5c 24 07 4d 85 e4 49 0f 49 dc 48 83 e3 f8 49 29 dc 74 12 41 80 3b 00 0f 85 b8 00 00 00 49 ff c3 49 ff cc 75 ee 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 45 84 ff 75 63 41 f7
RSP: 0018:ffffc90003a9f790 EFLAGS: 00000256
RAX: 0000000000000001 RBX: ffff888100e9ef08 RCX: ffffffff8b71260c
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888100e9ef08
RBP: ffffc90003a9f8b8 R08: ffff888100e9ef0b R09: 1ffff110201d3de1
R10: dffffc0000000000 R11: ffffed10201d3de2 R12: 0000000000000001
R13: 0000000000000001 R14: ffffed10201d3de2 R15: 1ffff110201d3de1
FS:  0000555567247500(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000002a1000 CR3: 000000001fb82000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 native_queued_spin_lock_slowpath+0xbc/0x8e0
 queued_spin_lock_slowpath+0x43/0x50
 do_raw_spin_lock+0x21f/0x290
 futex_wait_setup+0xa5/0x460
 __futex_wait+0x148/0x3e0
 futex_wait+0x104/0x360
 do_futex+0x333/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f542598e9a9
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:00007ffcd672dd18 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00000000000107ea RCX: 00007f542598e9a9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5425bb5fac
RBP: 0000000000000032 R08: 7fffffffffffffff R09: 00000014d672e00f
R10: 00007ffcd672de10 R11: 0000000000000246 R12: 00007f5425bb5fac
R13: 00007ffcd672de10 R14: 000000000001081c R15: 00007ffcd672de30
 </TASK>
CPU: 0 UID: 0 PID: 5912 Comm: syz.2.6 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-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:is_bpf_text_address+0x0/0x2b0
Code: 2a 54 00 be 00 02 00 00 bf 02 00 00 00 4c 89 ea e8 85 bd 5c ff 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 10 49 89 fe e8
RSP: 0018:ffffc90000007170 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f542598e9a9 RCX: 7dde163e29ab0600
RDX: 0000000000000002 RSI: ffffffff8d99883e RDI: 00007f542598e9a9
RBP: 0000000000000001 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff888028d9d640
R13: 0000000000000000 R14: 0000000000000001 R15: 1ffff92000000e42
FS:  00007f54268486c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2dfa81 CR3: 000000001fb82000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 kernel_text_address+0xa5/0xe0
 __kernel_text_address+0xd/0x40
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kmem_cache_free+0x18f/0x400
 ifb_xmit+0x1e2/0x5c0
 dev_hard_start_xmit+0x2d7/0x830
 sch_direct_xmit+0x241/0x4b0
 __dev_queue_xmit+0x17b6/0x3a70
 lapb_data_transmit+0x90/0xb0
 lapb_transmit_buffer+0x163/0x200
 lapb_t1timer_expiry+0x699/0xab0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:perf_trace_lock+0x263/0x3b0
Code: 4c 89 e7 e8 cf ba 85 00 41 81 c5 18 00 01 00 48 89 da 49 c7 04 24 00 00 00 00 48 8d 7b 08 48 89 f8 48 c1 e8 03 42 0f b6 04 38 <84> c0 0f 85 08 01 00 00 48 89 54 24 18 44 89 6a 08 48 8d 7b 18 41
RSP: 0018:ffffc90003a7fa60 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffffe8ff14658000 RCX: dffffc0000000000
RDX: ffffe8ff14658000 RSI: 0000000000000000 RDI: ffffe8ff14658008
RBP: ffffc90003a7fb58 R08: 0000000000000004 R09: 0000000000000004
R10: ffffe8ff1465801c R11: fffff91fe28cb005 R12: ffff88804b032a40
R13: 00000000000b0018 R14: 0000000000000024 R15: dffffc0000000000
 lock_release+0x3b2/0x3e0
 _raw_spin_unlock+0x16/0x50
 futex_wake+0x44b/0x500
 do_futex+0x395/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f542598e9a9
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:00007f54268480e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f5425bb5fa8 RCX: 00007f542598e9a9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f5425bb5fac
RBP: 00007f5425bb5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5425bb5fac
R13: 0000000000000000 R14: 00007ffcd672dad0 R15: 00007ffcd672dbb8
 </TASK>
sched: DL replenish lagged too much
