watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [aoe_tx0:2466]
Modules linked in:
irq event stamp: 60657031
hardirqs last  enabled at (60657030): [<ffff80008afbca68>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (60657030): [<ffff80008afbca68>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (60657031): [<ffff80008af97cf0>] enter_from_kernel_mode+0x14/0x34 arch/arm64/kernel/entry-common.c:42
softirqs last  enabled at (2764): [<ffff80008922d158>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (2768): [<ffff80008922d124>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 1 UID: 0 PID: 2466 Comm: aoe_tx0 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
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 : ffff8000a1ee7700
x29: ffff8000a1ee7700 x28: ffff0000d1d702f0 x27: 0000000000000000
x26: ffff0000d1d70280 x25: ffff0000dc09c238 x24: dfff800000000000
x23: 0000000000000003 x22: 0000000000000000 x21: ffff8000914d0520
x20: ffff80009794d920 x19: 0000000000000000 x18: 00000000ffffffff
x17: ffff800093599000 x16: ffff800080538fe4 x15: 0000000000000001
x14: 1ffff00012f29b24 x13: 0000000000000000 x12: 0000000000000000
x11: ffff800093398d48 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000000c0 x7 : ffff800083bc4030 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : 0000000000000002 x1 : ffff80008ee5c0d2 x0 : ffff80010c451000
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_room+0xa4/0x15c drivers/tty/serial/serial_core.c:647
 tty_write_room+0x6c/0x8c drivers/tty/tty_ioctl.c:69
 handle_tx+0x128/0x5fc drivers/net/caif/caif_serial.c:212
 caif_xmit+0x108/0x150 drivers/net/caif/caif_serial.c:268
 __netdev_start_xmit include/linux/netdevice.h:5273 [inline]
 netdev_start_xmit include/linux/netdevice.h:5282 [inline]
 xmit_one net/core/dev.c:3853 [inline]
 dev_hard_start_xmit+0x298/0x890 net/core/dev.c:3869
 __dev_queue_xmit+0x1070/0x2a78 net/core/dev.c:4819
 dev_queue_xmit include/linux/netdevice.h:3381 [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 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
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 : ffff80008f7e7d20
x29: ffff80008f7e7d20 x28: dfff800000000000 x27: ffff80008b04fd80
x26: 0000000000000000 x25: 0000000000000000 x24: 1ffff00011f0dd05
x23: 1ffff00011f12c90 x22: ffff80008f86e828 x21: 0000000000000001
x20: 0000000000000000 x19: ffff8000804d807c x18: 1fffe0003377d090
x17: ffff80008f86e000 x16: ffff8000804d7998 x15: 0000000000000001
x14: 1fffe0003377ed37 x13: 0000000000000000 x12: 0000000000000000
x11: ffff60003377ed38 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000eb703 x7 : ffff800080677148 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008af9a954
x2 : 0000000000000000 x1 : ffff80008ee5c0d2 x0 : ffff80010c42d000
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:191 [inline]
 do_idle+0x1e0/0x474 kernel/sched/idle.c:332
 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:430
 rest_init+0x2d8/0x2f4 init/main.c:757
 start_kernel+0x38c/0x3dc init/main.c:1206
 __primary_switched+0x8c/0x94 arch/arm64/kernel/head.S:246