watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [aoe_tx0:1421]
Modules linked in:
irq event stamp: 524675423
hardirqs last  enabled at (524675422): [<ffffffff89b25b72>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (524675422): [<ffffffff89b25b72>] _raw_spin_unlock_irqrestore+0x82/0x100 kernel/locking/spinlock.c:194
hardirqs last disabled at (524675423): [<ffffffff89a8e73a>] sysvec_apic_timer_interrupt+0xa/0xc0 arch/x86/kernel/apic/apic.c:1108
softirqs last  enabled at (3908): [<ffffffff87d64815>] local_bh_enable+0x5/0x20 include/linux/bottom_half.h:31
softirqs last disabled at (3914): [<ffffffff87d647f5>] local_bh_disable+0x5/0x20 include/linux/bottom_half.h:18
CPU: 0 PID: 1421 Comm: aoe_tx0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xa5/0x100 kernel/locking/spinlock.c:194
Code: 74 05 e8 6e 8d cb f7 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 26 16 9f f7 65 8b 05 27 14 50 76 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc90006057900 EFLAGS: 00000206
RAX: 1a70a6f28c224f00 RBX: 0000000000000a02 RCX: 1a70a6f28c224f00
RDX: dffffc0000000000 RSI: ffffffff8a0b1620 RDI: 0000000000000001
RBP: ffffc90006057990 R08: dffffc0000000000 R09: fffffbfff1ff7646
R10: fffffbfff1ff7646 R11: 1ffffffff1ff7645 R12: dffffc0000000000
R13: ffff888061b9e600 R14: ffffffff963e9268 R15: 1ffff92000c0af20
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c366680 CR3: 000000005a02b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
 uart_write+0x430/0x880 drivers/tty/serial/serial_core.c:574
 handle_tx+0x23f/0x600 drivers/net/caif/caif_serial.c:236
 __netdev_start_xmit include/linux/netdevice.h:5027 [inline]
 netdev_start_xmit include/linux/netdevice.h:5041 [inline]
 xmit_one net/core/dev.c:3649 [inline]
 dev_hard_start_xmit+0x2a5/0x7e0 net/core/dev.c:3665
 __dev_queue_xmit+0x19df/0x2ed0 net/core/dev.c:4288
 tx+0x65/0x160 drivers/block/aoe/aoenet.c:63
 kthread+0x1bc/0x390 drivers/block/aoe/aoecmd.c:1238
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 1 skipped: idling at default_idle+0xb/0x10 arch/x86/kernel/process.c:729