syzbot

watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [aoe_tx0:2062]
Modules linked in:
irq event stamp: 78456345
hardirqs last  enabled at (78456344): [<ffff800011a48554>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (78456344): [<ffff800011a48554>] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (78456345): [<ffff80001195cd20>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (78456345): [<ffff80001195cd20>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (1018): [<ffff80000fd41b44>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1022): [<ffff80000fd41b10>] 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 : skb_peek include/linux/skbuff.h:2045 [inline]
pc : handle_tx+0x314/0x5f8 drivers/net/caif/caif_serial.c:222
lr : handle_tx+0x314/0x5f8 drivers/net/caif/caif_serial.c:250
sp : ffff800026ad78e0
x29: ffff800026ad7930 x28: ffff0000d4345e30 x27: ffff0000db0ab000
x26: ffff0000d4345dc0 x25: 1fffe0001c073196 x24: 0000000000000000
x23: ffff0000e0398ca8 x22: 0000000000000000 x21: dfff800000000000
x20: ffff0000e0398cb0 x19: 0000000000000020 x18: ffff800011abbcc0
x17: ffff8000181f9000 x16: ffff8000082d25ac x15: ffff800017cda000
x14: ffff0000d12a5dd8 x13: 1ffff00002a180b1 x12: 0000000000ff0100
x11: ff0080000c823274 x10: 0000000000000000 x9 : ffff80000c823274
x8 : ffff0000d12a5340 x7 : ffff80000b35a820 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000b35aadc
x2 : 0000000000000001 x1 : 0000000000000020 x0 : 0000000000000000
Call trace:
 handle_tx+0x314/0x5f8 drivers/net/caif/caif_serial.c:250
 caif_xmit+0x108/0x150 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:3670 [inline]
 dev_hard_start_xmit+0x244/0x8e0 net/core/dev.c:3686
 __dev_queue_xmit+0x155c/0x309c net/core/dev.c:4346
 dev_queue_xmit include/linux/netdevice.h:3051 [inline]
 tx+0x9c/0x1c8 drivers/block/aoe/aoenet.c:63
 kthread+0x160/0x330 drivers/block/aoe/aoecmd.c:1241
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850