watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [aoe_tx0:2065]
Modules linked in:
irq event stamp: 62594301
hardirqs last  enabled at (62594300): [<ffff800011c77fb4>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (62594300): [<ffff800011c77fb4>] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (62594301): [<ffff800011b8c83c>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (62594301): [<ffff800011b8c83c>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (1862): [<ffff80000fefdd94>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1866): [<ffff80000fefdd60>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 0 PID: 2065 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 : __sanitizer_cov_trace_pc+0x8c/0x90 kernel/kcov.c:234
lr : uart_write_room+0x28/0x2d8 drivers/tty/serial/serial_core.c:607
sp : ffff800026e378b0
x29: ffff800026e378b0 x28: 1fffe0001ede9196 x27: 1fffe0001ba90dc6
x26: ffff0000f6f48cb0 x25: dfff800000000000 x24: 0000000000000020
x23: 0000000000000020 x22: ffff0000dd486dc0 x21: dfff800000000000
x20: ffff80000b46710c x19: ffff0000f21f5000 x18: 1fffe00033e7277e
x17: 0000000000b000be x16: ffff8000082dd244 x15: 000000000004ffff
x14: 0000000000000001 x13: 1fffe00019c3a1fc x12: 0000000000000000
x11: ff0080000b467134 x10: 0000000000000000 x9 : ffff80000b467134
x8 : ffff0000d117d400 x7 : ffff80000b46664c x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000b466900
x2 : 0000000000000001 x1 : 0000000000000020 x0 : ffff0000f21f5000
Call trace:
 __sanitizer_cov_trace_pc+0x8c/0x90 kernel/kcov.c:234
 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