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NETDEV WATCHDOG: lec0 (): transmit queue 0 timed out
WARNING: CPU: 0 PID: 4198 at net/sched/sch_generic.c:481 dev_watchdog+0x85d/0xa40 net/sched/sch_generic.c:480
Modules linked in:
CPU: 0 PID: 4198 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:dev_watchdog+0x85d/0xa40 net/sched/sch_generic.c:480
Code: 94 72 05 01 48 8b 5c 24 20 48 89 df e8 6c f2 e3 ff 48 c7 c7 40 4a 22 8b 48 89 de 48 8b 1c 24 48 89 c2 44 89 e1 e8 93 c2 b0 01 <0f> 0b e9 51 fe ff ff e8 57 48 74 f9 0f 0b e9 33 fe ff ff 89 d9 80
RSP: 0018:ffffc90000007af0 EFLAGS: 00010246
RAX: 775b4a22ef3d6000 RBX: ffff888074060448 RCX: ffff8880790a9dc0
RDX: 0000000000000100 RSI: 0000000000000102 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff901ef18f R09: 1ffffffff203de31
R10: dffffc0000000000 R11: fffffbfff203de32 R12: 0000000000000000
R13: ffff888074060540 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000555590f7d500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1b8db97000 CR3: 0000000063f53000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
expire_timers kernel/time/timer.c:1699 [inline]
__run_timers+0x56c/0x810 kernel/time/timer.c:1970
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
handle_softirqs+0x336/0x830 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x13b/0x230 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:console_unlock+0xc90/0x10f0 kernel/printk/printk.c:2749
Code: 75 11 e8 f3 e1 18 00 4d 85 e4 75 16 e8 e9 e1 18 00 eb 15 e8 e2 e1 18 00 e8 6d 46 60 08 4d 85 e4 74 ea e8 d3 e1 18 00 fb 31 ff <89> de e8 29 e5 18 00 85 db 0f 94 c0 22 44 24 1f 3c 01 75 1f e8 b7
RSP: 0018:ffffc90002fdf660 EFLAGS: 00000246
RAX: ffffffff81602dcd RBX: 0000000000000000 RCX: ffff8880790a9dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90002fdf8d0 R08: ffffffff901ef0c7 R09: 1ffffffff203de18
R10: dffffc0000000000 R11: fffffbfff203de19 R12: 0000000000000200
R13: 0000000000000045 R14: 0000000000000000 R15: dffffc0000000000
vprintk_emit+0xc0/0x150 kernel/printk/printk.c:2274
_printk+0xda/0x130 kernel/printk/printk.c:2299
print_hex_dump+0x1aa/0x2b0 lib/hexdump.c:281
jfs_flush_journal+0xbfd/0xe80 fs/jfs/jfs_logmgr.c:1606
jfs_umount+0xf1/0x360 fs/jfs/jfs_umount.c:58
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1438
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x426/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f4c5a20c397
Code: a2 c7 05 5c 43 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe7ff32bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f4c5a2a1474 RCX: 00007f4c5a20c397
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe7ff32cb0
RBP: 00007ffe7ff32cb0 R08: 00007ffe7ff33cb0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe7ff33d40
R13: 00007f4c5a2a1474 R14: 0000000000026e07 R15: 00007ffe7ff33d80
----------------
Code disassembly (best guess):
0: 75 11 jne 0x13
2: e8 f3 e1 18 00 call 0x18e1fa
7: 4d 85 e4 test %r12,%r12
a: 75 16 jne 0x22
c: e8 e9 e1 18 00 call 0x18e1fa
11: eb 15 jmp 0x28
13: e8 e2 e1 18 00 call 0x18e1fa
18: e8 6d 46 60 08 call 0x860468a
1d: 4d 85 e4 test %r12,%r12
20: 74 ea je 0xc
22: e8 d3 e1 18 00 call 0x18e1fa
27: fb sti
28: 31 ff xor %edi,%edi
* 2a: 89 de mov %ebx,%esi <-- trapping instruction
2c: e8 29 e5 18 00 call 0x18e55a
31: 85 db test %ebx,%ebx
33: 0f 94 c0 sete %al
36: 22 44 24 1f and 0x1f(%rsp),%al
3a: 3c 01 cmp $0x1,%al
3c: 75 1f jne 0x5d
3e: e8 .byte 0xe8
3f: b7 .byte 0xb7