watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [aoe_tx0:2412]
Modules linked in:
irq event stamp: 80752047
hardirqs last  enabled at (80752046): [<ffff80008b035f68>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (80752046): [<ffff80008b035f68>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (80752047): [<ffff80008b00ec74>] __el1_irq arch/arm64/kernel/entry-common.c:650 [inline]
hardirqs last disabled at (80752047): [<ffff80008b00ec74>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:668
softirqs last  enabled at (1068): [<ffff80008934cb54>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1072): [<ffff80008934cb20>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 0 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 : ffff8000a2b176d0
x29: ffff8000a2b176d0 x28: ffff0000e75ffbb0 x27: 0000000000000000
x26: ffff0000e75ffb40 x25: ffff0000e75ffc18 x24: dfff800000000000
x23: 0000000000000003 x22: 0000000000000000 x21: ffff8000913a3f00
x20: ffff8000978b4dc0 x19: 0000000000000000 x18: 1fffe00033797688
x17: ffff800093524000 x16: ffff800080529624 x15: 0000000000000001
x14: 1ffff00012f169b8 x13: 0000000000000000 x12: 0000000000000000
x11: ffff800093323be8 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000000c0 x7 : ffff800083e16f80 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : 0000000000000002 x1 : ffff80008eddb42c x0 : ffff80010c595000
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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 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 : ffff800097cb7d40
x29: ffff800097cb7d40 x28: 0000000000000002 x27: dfff800000000000
x26: 1ffff00012f96fb0 x25: 0000000000000000 x24: 0000000000000000
x23: 1fffe00018343b70 x22: ffff80008f7de768 x21: 1ffff00011efbced
x20: 0000000000000000 x19: ffff8000804c9d30 x18: 1fffe0003379be88
x17: ffff80008f7de000 x16: ffff8000804c9654 x15: 0000000000000001
x14: 1fffe0003379db40 x13: 0000000000000000 x12: 0000000000000000
x11: ffff60003379db41 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000adaf5 x7 : ffff80008065ebfc x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008b013c4c
x2 : 0000000000000000 x1 : ffff80008eddb42c x0 : ffff80010c5b9000
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
 secondary_start_kernel+0x1bc/0x1e4 arch/arm64/kernel/smp.c:271
 __secondary_switched+0xc0/0xc4 arch/arm64/kernel/head.S:401