watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [aoe_tx0:2405]
Modules linked in:
irq event stamp: 28108531
hardirqs last  enabled at (28108530): [<ffff80008af232f4>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (28108530): [<ffff80008af232f4>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (28108531): [<ffff80008aefc6f4>] __el1_irq arch/arm64/kernel/entry-common.c:650 [inline]
hardirqs last disabled at (28108531): [<ffff80008aefc6f4>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:668
softirqs last  enabled at (1870): [<ffff80008922abc8>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1874): [<ffff80008922ab94>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 1 UID: 0 PID: 2405 Comm: aoe_tx0 Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (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 : ffff8000a15276a0
x29: ffff8000a15276a0 x28: ffff0000f2c49cf0 x27: 0000000000000000
x26: ffff0000f2c49c80 x25: ffff0000d3a68238 x24: dfff800000000000
x23: 0000000000000003 x22: 0000000000000000 x21: ffff800091212840
x20: ffff800097716160 x19: 0000000000000000 x18: 00000000ffffffff
x17: ffff800093376000 x16: ffff80008051f01c x15: 0000000000000001
x14: 1ffff00012ee2c2c x13: 0000000000000000 x12: 0000000000000000
x11: ffff800093175c08 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000000c0 x7 : ffff800083d695e4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : 0000000000000002 x1 : ffff80008ec5712e x0 : ffff80010c8e2000
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:650
 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:5215 [inline]
 netdev_start_xmit include/linux/netdevice.h:5224 [inline]
 xmit_one net/core/dev.c:3830 [inline]
 dev_hard_start_xmit+0x2b0/0x890 net/core/dev.c:3846
 __dev_queue_xmit+0x15a4/0x31f0 net/core/dev.c:4713
 dev_queue_xmit include/linux/netdevice.h:3355 [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:464
 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 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (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:124
sp : ffff80008f5f7d00
x29: ffff80008f5f7d00 x28: 0000000000000001 x27: dfff800000000000
x26: 1ffff00011ebefa8 x25: 0000000000000000 x24: 0000000000000000
x23: 1ffff00011ed4c60 x22: ffff80008f67e768 x21: 1ffff00011ecfced
x20: 0000000000000000 x19: ffff8000804c0188 x18: 1fffe000337d1c76
x17: ffff80008f67e000 x16: ffff8000804bfae8 x15: 0000000000000001
x14: 1fffe000337d3928 x13: 0000000000000000 x12: 0000000000000000
x11: ffff6000337d3929 x10: 0000000000000003 x9 : 0000000000000000
x8 : 000000000009b215 x7 : ffff8000806515b8 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008af016cc
x2 : 0000000000000000 x1 : ffff80008ec5712e x0 : ffff80010c8be000
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:185 [inline]
 do_idle+0x1d8/0x454 kernel/sched/idle.c:325
 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:423
 rest_init+0x2d8/0x2f4 init/main.c:745
 start_kernel+0x450/0x4ac init/main.c:1102
 __primary_switched+0x8c/0x94 arch/arm64/kernel/head.S:246