watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [aoe_tx0:2412]
Modules linked in:
irq event stamp: 62184893
hardirqs last  enabled at (62184892): [<ffff80008b037300>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (62184892): [<ffff80008b037300>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (62184893): [<ffff80008b0124f8>] __enter_from_kernel_mode arch/arm64/kernel/entry-common.c:43 [inline]
hardirqs last disabled at (62184893): [<ffff80008b0124f8>] enter_from_kernel_mode+0x14/0x34 arch/arm64/kernel/entry-common.c:50
softirqs last  enabled at (2372): [<ffff80008934c6c4>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (2384): [<ffff80008934c690>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 1 UID: 0 PID: 2412 Comm: aoe_tx0 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
pc : _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:194
lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
lr : _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
sp : ffff8000a0f576f0
x29: ffff8000a0f576f0 x28: ffff0000d3c0e2f0 x27: 0000000000000000
x26: ffff0000d3c0e280 x25: ffff0000d3c0e358 x24: dfff800000000000
x23: 0000000000000003 x22: 0000000000000000 x21: ffff8000913a3e40
x20: ffff8000978b4dc0 x19: 0000000000000000 x18: 00000000ffffffff
x17: ffff800093524000 x16: ffff800080528e24 x15: 0000000000000001
x14: 1ffff00012f169b8 x13: 0000000000000000 x12: 0000000000000000
x11: ffff800093323be8 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000000c0 x7 : ffff800083e16b00 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : 0000000000000002 x1 : ffff80008eddb55d x0 : ffff80010c5b9000
Call trace:
 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P)
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P)
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] (P)
 _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:194 (P)
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 uart_port_unlock_irqrestore include/linux/serial_core.h:788 [inline]
 uart_port_unlock_deref+0x108/0x2ec drivers/tty/serial/serial_core.c:91
 uart_write+0xc4/0x130 drivers/tty/serial/serial_core.c:629
 handle_tx+0x200/0x5fc drivers/net/caif/caif_serial.c:222
 caif_xmit+0x108/0x150 drivers/net/caif/caif_serial.c:268
 __netdev_start_xmit include/linux/netdevice.h:5222 [inline]
 netdev_start_xmit include/linux/netdevice.h:5231 [inline]
 xmit_one net/core/dev.c:3839 [inline]
 dev_hard_start_xmit+0x2b0/0x890 net/core/dev.c:3855
 __dev_queue_xmit+0x1600/0x32a8 net/core/dev.c:4725
 dev_queue_xmit include/linux/netdevice.h:3361 [inline]
 tx+0x9c/0x1cc drivers/block/aoe/aoenet.c:62
 kthread+0x164/0x354 drivers/block/aoe/aoecmd.c:1241
 kthread+0x5fc/0x75c kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:50
lr : default_idle_call+0xd0/0xfc kernel/sched/idle.c:129
sp : ffff80008f757d20
x29: ffff80008f757d20 x28: 0000000000000001 x27: dfff800000000000
x26: 1ffff00011eeafac x25: 0000000000000000 x24: 0000000000000000
x23: 1ffff00011f00ba8 x22: ffff80008f7de768 x21: 1ffff00011efbced
x20: 0000000000000000 x19: ffff8000804c9530 x18: 1fffe00033797688
x17: ffff80008f7de000 x16: ffff8000804c8e54 x15: 0000000000000001
x14: 1fffe00033799338 x13: 0000000000000000 x12: 0000000000000000
x11: ffff600033799339 x10: 0000000000000003 x9 : 0000000000000000
x8 : 0000000000085bf3 x7 : ffff80008065e778 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008b01503c
x2 : 0000000000000000 x1 : ffff80008eddb55d x0 : ffff80010c595000
Call trace:
 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] (P)
 arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:48 (P)
 cpuidle_idle_call kernel/sched/idle.c:190 [inline]
 do_idle+0x1d8/0x454 kernel/sched/idle.c:330
 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:428
 rest_init+0x2d8/0x2f4 init/main.c:744
 start_kernel+0x390/0x3e0 init/main.c:1097
 __primary_switched+0x8c/0x94 arch/arm64/kernel/head.S:246