watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [aoe_tx0:2454]
Modules linked in:
irq event stamp: 66919239
hardirqs last  enabled at (66919238): [<ffff80008ae22218>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (66919238): [<ffff80008ae22218>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (66919239): [<ffff80008adfd8fc>] enter_from_kernel_mode+0x14/0x34 arch/arm64/kernel/entry-common.c:42
softirqs last  enabled at (1064): [<ffff8000890c9220>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1068): [<ffff8000890c91ec>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 1 UID: 0 PID: 2454 Comm: aoe_tx0 Not tainted syzkaller #0 PREEMPT 
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 : ffff8000a1d076f0
x29: ffff8000a1d076f0 x28: ffff0000cb825070 x27: 0000000000000000
x26: ffff0000cb825000 x25: ffff0000cb8250d8 x24: dfff800000000000
x23: 0000000000000003 x22: 0000000000000000 x21: ffff8000911c1c80
x20: ffff8000976e7f80 x19: 0000000000000000 x18: 00000000ffffffff
x17: ffff800093335000 x16: ffff80008052bd88 x15: 0000000000000001
x14: 1ffff00012edcff0 x13: 0000000000000000 x12: 0000000000000000
x11: ffff800093134c88 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000000c0 x7 : ffff800083b334e0 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : 0000000000000002 x1 : ffff80008ebacee7 x0 : ffff80010c9cc000
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:626
 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:5248 [inline]
 netdev_start_xmit include/linux/netdevice.h:5257 [inline]
 xmit_one net/core/dev.c:3845 [inline]
 dev_hard_start_xmit+0x2b0/0x890 net/core/dev.c:3861
 __dev_queue_xmit+0x1600/0x32a8 net/core/dev.c:4763
 dev_queue_xmit include/linux/netdevice.h:3365 [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 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 : ffff80008f527d20
x29: ffff80008f527d20 x28: 0000000000000001 x27: dfff800000000000
x26: 1ffff00011ea4fac x25: 0000000000000000 x24: 0000000000000000
x23: 1ffff00011ebac30 x22: ffff80008f5ae768 x21: 1ffff00011eb5ced
x20: 0000000000000000 x19: ffff8000804cc384 x18: 1fffe000337d4a90
x17: ffff80008f5ae000 x16: ffff8000804cbca8 x15: 0000000000000001
x14: 1fffe000337d6740 x13: 0000000000000000 x12: 0000000000000000
x11: ffff6000337d6741 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000861d5 x7 : ffff800080663c40 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ae00440
x2 : 0000000000000000 x1 : ffff80008ebacee7 x0 : ffff80010c9a8000
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:757
 start_kernel+0x394/0x3e4 init/main.c:1111
 __primary_switched+0x8c/0x94 arch/arm64/kernel/head.S:246