watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [aoe_tx0:2062]
Modules linked in:
irq event stamp: 56176081
hardirqs last  enabled at (56176080): [<ffff800011b0dfbc>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (56176080): [<ffff800011b0dfbc>] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (56176081): [<ffff800011a22fc4>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (56176081): [<ffff800011a22fc4>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (2568): [<ffff80000fdc857c>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (2572): [<ffff80000fdc8548>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 1 PID: 2062 Comm: aoe_tx0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __lse_atomic_sub_return arch/arm64/include/asm/atomic_lse.h:97 [inline]
pc : arch_atomic_sub_return arch/arm64/include/asm/atomic.h:53 [inline]
pc : arch_atomic_dec_return include/linux/atomic/atomic-arch-fallback.h:611 [inline]
pc : arch_atomic_dec_and_test include/linux/atomic/atomic-arch-fallback.h:1189 [inline]
pc : atomic_dec_and_test include/linux/atomic/atomic-instrumented.h:576 [inline]
pc : uart_port_deref drivers/tty/serial/serial_core.c:71 [inline]
pc : uart_write+0x3e4/0x7e0 drivers/tty/serial/serial_core.c:584
lr : __lse_atomic_fetch_add arch/arm64/include/asm/atomic_lse.h:62 [inline]
lr : __lse_atomic_fetch_sub arch/arm64/include/asm/atomic_lse.h:77 [inline]
lr : __lse_atomic_sub_return arch/arm64/include/asm/atomic_lse.h:97 [inline]
lr : arch_atomic_sub_return arch/arm64/include/asm/atomic.h:53 [inline]
lr : arch_atomic_dec_return include/linux/atomic/atomic-arch-fallback.h:611 [inline]
lr : arch_atomic_dec_and_test include/linux/atomic/atomic-arch-fallback.h:1189 [inline]
lr : atomic_dec_and_test include/linux/atomic/atomic-instrumented.h:576 [inline]
lr : uart_port_deref drivers/tty/serial/serial_core.c:71 [inline]
lr : uart_write+0x3dc/0x7e0 drivers/tty/serial/serial_core.c:584
sp : ffff800026da7840
x29: ffff800026da7880 x28: 1fffe0001f4a8ec0 x27: dfff800000000000
x26: ffff0000fa547600 x25: ffff0000ce280fd0 x24: 0000000000000020
x23: 0000000000000020 x22: 1ffff000038f657e x21: 0000000000000000
x20: ffff0000ce280fe0 x19: ffff80001c7b2bf0 x18: ffff800011b8bf60
x17: ffff800018349000 x16: ffff8000082d9364 x15: ffff800017e2a000
x14: 0000000000000001 x13: 1fffe00019c501fc x12: 0000000000ff0100
x11: ff0080000b3bb378 x10: 0000000000000000 x9 : ffff80000b3bb378
x8 : 0000000000000002 x7 : ffff80000b3bb0b4 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000b3bb370
x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __lse_atomic_fetch_add arch/arm64/include/asm/atomic_lse.h:62 [inline]
 __lse_atomic_fetch_sub arch/arm64/include/asm/atomic_lse.h:77 [inline]
 __lse_atomic_sub_return arch/arm64/include/asm/atomic_lse.h:97 [inline]
 arch_atomic_sub_return arch/arm64/include/asm/atomic.h:53 [inline]
 arch_atomic_dec_return include/linux/atomic/atomic-arch-fallback.h:611 [inline]
 arch_atomic_dec_and_test include/linux/atomic/atomic-arch-fallback.h:1189 [inline]
 atomic_dec_and_test include/linux/atomic/atomic-instrumented.h:576 [inline]
 uart_port_deref drivers/tty/serial/serial_core.c:71 [inline]
 uart_write+0x3e4/0x7e0 drivers/tty/serial/serial_core.c:584
 handle_tx+0x1ec/0x5e8 drivers/net/caif/caif_serial.c:236
 caif_xmit+0x108/0x14c drivers/net/caif/caif_serial.c:282
 __netdev_start_xmit include/linux/netdevice.h:4896 [inline]
 netdev_start_xmit include/linux/netdevice.h:4910 [inline]
 xmit_one net/core/dev.c:3683 [inline]
 dev_hard_start_xmit+0x234/0x8cc net/core/dev.c:3699
 __dev_queue_xmit+0x1594/0x3134 net/core/dev.c:4359
 dev_queue_xmit include/linux/netdevice.h:3051 [inline]
 tx+0x9c/0x1c4 drivers/block/aoe/aoenet.c:63
 kthread+0x160/0x338 drivers/block/aoe/aoecmd.c:1241
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850