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NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out
WARNING: CPU: 0 PID: 4490 at net/sched/sch_generic.c:478 dev_watchdog+0x8d3/0xab0 net/sched/sch_generic.c:477
Modules linked in:
CPU: 0 PID: 4490 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:dev_watchdog+0x8d3/0xab0 net/sched/sch_generic.c:477
Code: f9 c6 05 1e 02 62 05 01 4c 8b 74 24 28 4c 89 f7 e8 42 4e e4 ff 48 c7 c7 80 a7 01 8b 4c 89 f6 48 89 c2 44 89 e1 e8 ad 3f aa 01 <0f> 0b e9 31 fe ff ff e8 61 e2 83 f9 0f 0b e9 13 fe ff ff 44 89 e1
RSP: 0018:ffffc90000007b08 EFLAGS: 00010246
RAX: 951ffa8455375e00 RBX: dffffc0000000000 RCX: ffff88801dcb9dc0
RDX: 0000000000000100 RSI: 0000000000000103 RDI: 0000000000000000
RBP: ffff8880245f2c68 R08: dffffc0000000000 R09: fffff52000000ec5
R10: fffff52000000ec5 R11: 1ffff92000000ec4 R12: 0000000000000000
R13: ffff88807b1ea540 R14: ffff88807b1ea000 R15: dffffc0000000000
FS: 00007fd2d4c6c880(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555560419788 CR3: 0000000022800000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
call_timer_fn+0x16c/0x530 kernel/time/timer.c:1451
expire_timers kernel/time/timer.c:1496 [inline]
__run_timers+0x525/0x7c0 kernel/time/timer.c:1767
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
handle_softirqs+0x328/0x820 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:preempt_count_add+0xc2/0x190 kernel/sched/core.c:5516
Code: 0b 00 65 4c 8b 35 ee fe b0 7e 49 81 c6 e8 14 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 71 c0 6a 00 49 89 1e <5b> 41 5e 41 5f c3 89 fb e8 01 3e 86 02 89 df 85 c0 74 9b 48 c7 c0
RSP: 0018:ffffc900031ff8b0 EFLAGS: 00000202
RAX: 0000000000000002 RBX: ffff8880638b18f8 RCX: ffffffff960c1f03
RDX: 0000000000000000 RSI: 000000000000501a RDI: 0000000000000001
RBP: 000000000000501a R08: dffffc0000000000 R09: ffffed1005472c5b
R10: ffffed1005472c5b R11: 1ffff11005472c5a R12: dffffc0000000000
R13: dffffc0000000000 R14: ffffffff9612b530 R15: dffffc0000000000
bit_spin_lock include/linux/bit_spinlock.h:25 [inline]
hlist_bl_lock include/linux/list_bl.h:148 [inline]
__d_lookup_done+0x73/0x3b0 fs/dcache.c:2689
__d_add+0x461/0x7f0 fs/dcache.c:2710
simple_lookup+0xc1/0xf0 fs/libfs.c:75
lookup_open fs/namei.c:3440 [inline]
open_last_lookups fs/namei.c:3532 [inline]
path_openat+0x1003/0x2f30 fs/namei.c:3739
do_filp_open+0x1b3/0x3e0 fs/namei.c:3769
do_sys_openat2+0x142/0x4a0 fs/open.c:1253
do_sys_open fs/open.c:1269 [inline]
__do_sys_openat fs/open.c:1285 [inline]
__se_sys_openat fs/open.c:1280 [inline]
__x64_sys_openat+0x135/0x160 fs/open.c:1280
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fd2d4d5a407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffeaeba4250 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fd2d4c6c880 RCX: 00007fd2d4d5a407
RDX: 0000000000080241 RSI: 00007ffeaeba47b0 RDI: ffffffffffffff9c
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001b6 R11: 0000000000000202 R12: 000055e43d51fdfc
R13: 000055e43d51fdfc R14: 0000000000000001 R15: 000055e43d53a140
----------------
Code disassembly (best guess):
0: 0b 00 or (%rax),%eax
2: 65 4c 8b 35 ee fe b0 mov %gs:0x7eb0feee(%rip),%r14 # 0x7eb0fef8
9: 7e
a: 49 81 c6 e8 14 00 00 add $0x14e8,%r14
11: 4c 89 f0 mov %r14,%rax
14: 48 c1 e8 03 shr $0x3,%rax
18: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1)
1d: 74 08 je 0x27
1f: 4c 89 f7 mov %r14,%rdi
22: e8 71 c0 6a 00 call 0x6ac098
27: 49 89 1e mov %rbx,(%r14)
* 2a: 5b pop %rbx <-- trapping instruction
2b: 41 5e pop %r14
2d: 41 5f pop %r15
2f: c3 ret
30: 89 fb mov %edi,%ebx
32: e8 01 3e 86 02 call 0x2863e38
37: 89 df mov %ebx,%edi
39: 85 c0 test %eax,%eax
3b: 74 9b je 0xffffffd8
3d: 48 rex.W
3e: c7 .byte 0xc7
3f: c0 .byte 0xc0