watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [aoe_tx0:2062]
Modules linked in:
irq event stamp: 58114041
hardirqs last  enabled at (58114040): [<ffff800011b23e04>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (58114040): [<ffff800011b23e04>] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (58114041): [<ffff800011a38dbc>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (58114041): [<ffff800011a38dbc>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (3290): [<ffff80000fdd29c8>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (3294): [<ffff80000fdd2994>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 0 PID: 2062 Comm: aoe_tx0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : handle_tx+0x26c/0x5e8 drivers/net/caif/caif_serial.c:-1
lr : handle_tx+0x1ec/0x5e8 drivers/net/caif/caif_serial.c:236
sp : ffff8000269578e0
x29: ffff800026957930 x28: ffff0000ccd0d6b0 x27: ffff0000f2262000
x26: ffff0000ccd0d640 x25: 1fffe0001a1e7996 x24: 0000000000000000
x23: ffff0000d0f3cca8 x22: 0000000000000000 x21: dfff800000000000
x20: 1fffe000199a1ad6 x19: 0000000000000000 x18: ffff800011b9bf60
x17: ffff80001835b000 x16: ffff8000082d92bc x15: ffff800017e3c000
x14: 0000000000000001 x13: 1fffe00019cd41fc x12: 0000000000ff0100
x11: ff0080000b3c1438 x10: ffff0000d0f3ce48 x9 : ffff80000b3c1438
x8 : 0000000000000000 x7 : ffff80000b3c1154 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000b3c1410
x2 : 0000000000000001 x1 : 0000000000000001 x0 : ffff0000f2262491
Call trace:
 update_tty_status drivers/net/caif/caif_serial.c:89 [inline]
 handle_tx+0x26c/0x5e8 drivers/net/caif/caif_serial.c:237
 caif_xmit+0x108/0x14c 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+0x234/0x8cc net/core/dev.c:3711
 __dev_queue_xmit+0x15b8/0x3118 net/core/dev.c:4375
 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