syzbot

watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [aoe_tx0:2055]
Modules linked in:
irq event stamp: 21924897
hardirqs last  enabled at (21924896): [<ffff800011b8f288>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (21924896): [<ffff800011b8f288>] _raw_spin_unlock_irqrestore+0xac/0x158 kernel/locking/spinlock.c:194
hardirqs last disabled at (21924897): [<ffff800011ab7104>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (1504): [<ffff80000fef1a48>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (1516): [<ffff80000fef1a14>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
CPU: 1 PID: 2055 Comm: aoe_tx0 Not tainted 5.15.164-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
pc : _raw_spin_unlock_irqrestore+0xbc/0x158 kernel/locking/spinlock.c:194
lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
lr : _raw_spin_unlock_irqrestore+0xac/0x158 kernel/locking/spinlock.c:194
sp : ffff800022a277e0
x29: ffff800022a277f0 x28: ffff0000cf608600 x27: ffff0000cb050be8
x26: 0000000000000001 x25: ffff0000cb050f70 x24: ffff0000d9c880b0
x23: 0000000000000020 x22: ffff80000b46e848 x21: ffff8000189405c0
x20: ffff8000189405a8 x19: 0000000000000000 x18: ffff800022a27520
x17: 0000000000000000 x16: ffff8000082ebf04 x15: 00000000000277e9
x14: 1ffff0000295806a x13: dfff800000000000 x12: 0000000000000003
x11: 0000000000000202 x10: 0000000000000003 x9 : 0000000000000080
x8 : 00000000000000c0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000804605c
x2 : 0000000000000002 x1 : ffff800011c0ad00 x0 : ffff80019fdc3000
Call trace:
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline]
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
 _raw_spin_unlock_irqrestore+0xbc/0x158 kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
 uart_write+0x36c/0x8b8 drivers/tty/serial/serial_core.c:572
 handle_tx+0x1f8/0x644 drivers/net/caif/caif_serial.c:236
 caif_xmit+0x10c/0x160 drivers/net/caif/caif_serial.c:282
 __netdev_start_xmit include/linux/netdevice.h:5019 [inline]
 netdev_start_xmit include/linux/netdevice.h:5033 [inline]
 xmit_one net/core/dev.c:3617 [inline]
 dev_hard_start_xmit+0x2bc/0x92c net/core/dev.c:3633
 __dev_queue_xmit+0x13a8/0x2a6c net/core/dev.c:4248
 dev_queue_xmit+0x24/0x34 net/core/dev.c:4281
 tx+0x94/0x1cc drivers/block/aoe/aoenet.c:63
 kthread+0x1ac/0x374 drivers/block/aoe/aoecmd.c:1230
 kthread+0x37c/0x45c kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870