watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [aoe_tx0:2062] Modules linked in: irq event stamp: 34113377 hardirqs last enabled at (34113376): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (34113376): [] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194 hardirqs last disabled at (34113377): [] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline] hardirqs last disabled at (34113377): [] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486 softirqs last enabled at (1036): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1040): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 CPU: 0 PID: 2062 Comm: aoe_tx0 Not tainted 6.1.137-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] pc : _raw_spin_unlock_irqrestore+0x58/0xac kernel/locking/spinlock.c:194 lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] lr : _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194 sp : ffff8000269f7840 x29: ffff8000269f7840 x28: ffff0000f1dd01b0 x27: ffff0000c34cf000 x26: ffff0000f1dd0140 x25: 1fffe00019d17196 x24: 0000000000000000 x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000cded0fd8 x20: ffff80001c609a90 x19: 0000000000000000 x18: ffff800011a7bd00 x17: ffff8000181a0000 x16: ffff8000082d1c08 x15: ffff800017c80fc0 x14: ffff0000d106a658 x13: 1ffff00002a0e0b1 x12: 0000000000ff0100 x11: ff0080000a889074 x10: 0000000000000003 x9 : 0000000000000080 x8 : 00000000000000c0 x7 : ffff80000b34d270 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000002 x1 : ffff800011a7d800 x0 : ffff80019ee50000 Call trace: arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] _raw_spin_unlock_irqrestore+0x58/0xac kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] uart_write_room+0x150/0x2d4 drivers/tty/serial/serial_core.c:615 tty_write_room+0x6c/0x8c drivers/tty/tty_ioctl.c:80 handle_tx+0x120/0x5f8 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:4896 [inline] netdev_start_xmit include/linux/netdevice.h:4910 [inline] xmit_one net/core/dev.c:3658 [inline] dev_hard_start_xmit+0x244/0x8e0 net/core/dev.c:3674 __dev_queue_xmit+0x155c/0x309c net/core/dev.c:4334 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:1237 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864