watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [aoe_tx0:2064]
Modules linked in:
irq event stamp: 63108331
hardirqs last  enabled at (63108330): [<ffff800011c77fb4>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (63108330): [<ffff800011c77fb4>] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (63108331): [<ffff800011b8c83c>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (63108331): [<ffff800011b8c83c>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (1804): [<ffff80000fefdd94>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1808): [<ffff80000fefdd60>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 1 PID: 2064 Comm: aoe_tx0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
pstate: 82400005 (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+0x58/0xac kernel/locking/spinlock.c:194
lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
lr : _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
sp : ffff8000269b7890
x29: ffff8000269b7890 x28: 1fffe0001ba1b596 x27: 1fffe000197acbc6
x26: ffff0000dd0dacb0 x25: dfff800000000000 x24: 0000000000000020
x23: 0000000000000000 x22: 0000000000000000 x21: dfff800000000000
x20: ffff80001c936c90 x19: 0000000000000000 x18: 1fffe00033e7697e
x17: 0000000000000000 x16: ffff8000082dd244 x15: 000000000004ffff
x14: 0000000000000001 x13: 1ffff00003926d92 x12: 0000000000000000
x11: ff0080000a9761c0 x10: 0000000000000003 x9 : 0000000000000080
x8 : 00000000000000c0 x7 : ffff80000b46721c x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000002 x1 : ffff800011cedc80 x0 : ffff80018a0de000
Call trace:
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline]
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
 _raw_spin_unlock_irqrestore+0x58/0xac kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 uart_write_room+0x144/0x2d8 drivers/tty/serial/serial_core.c:615
 tty_write_room+0x6c/0x8c drivers/tty/tty_ioctl.c:80
 handle_tx+0x118/0x600 drivers/net/caif/caif_serial.c:226
 caif_xmit+0x108/0x150 drivers/net/caif/caif_serial.c:282
 __netdev_start_xmit include/linux/netdevice.h:4894 [inline]
 netdev_start_xmit include/linux/netdevice.h:4908 [inline]
 xmit_one net/core/dev.c:3695 [inline]
 dev_hard_start_xmit+0x234/0x8c8 net/core/dev.c:3711
 __dev_queue_xmit+0x1590/0x3154 net/core/dev.c:4375
 dev_queue_xmit include/linux/netdevice.h:3051 [inline]
 tx+0xa0/0x1c8 drivers/block/aoe/aoenet.c:63
 kthread+0x178/0x344 drivers/block/aoe/aoecmd.c:1241
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850