watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [aoe_tx0:1377] Modules linked in: irq event stamp: 40578701 hardirqs last enabled at (40578700): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (40578700): [] _raw_spin_unlock_irqrestore+0x48/0x8c kernel/locking/spinlock.c:194 hardirqs last disabled at (40578701): [] __el1_irq arch/arm64/kernel/entry-common.c:455 [inline] hardirqs last disabled at (40578701): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:473 softirqs last enabled at (6970): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (6974): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 CPU: 0 PID: 1377 Comm: aoe_tx0 Not tainted 6.0.0-rc4-syzkaller-17186-g25050c56fa3c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 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+0x58/0x8c kernel/locking/spinlock.c:194 lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] lr : _raw_spin_unlock_irqrestore+0x48/0x8c kernel/locking/spinlock.c:194 sp : ffff800014713ba0 x29: ffff800014713ba0 x28: ffff80000d380688 x27: ffff80000f143000 x26: ffff80000d700000 x25: 0000000000000000 x24: 0000000000000fff x23: 0000000000000020 x22: 0000000000000000 x21: 0000000000000000 x20: ffff80000f12d938 x19: 0000000000000000 x18: 00000000000000c0 x17: ffff80000dd7a698 x16: ffff80000dbb8658 x15: ffff0000c35b1a80 x14: 0000000000000028 x13: 00000000ffffffff x12: ffff0000c35b1a80 x11: ff808000095eddd8 x10: 0000000000000000 x9 : 0000000000000080 x8 : 00000000000000c0 x7 : ffff80000990de88 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000002 x1 : ffff80000ce9d855 x0 : ffff8001f1cef000 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+0x58/0x8c kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:404 [inline] uart_write_room+0xb4/0x154 drivers/tty/serial/serial_core.c:620 tty_write_room+0x30/0x4c drivers/tty/tty_ioctl.c:79 handle_tx+0x80/0x3e8 drivers/net/caif/caif_serial.c:226 caif_xmit+0xa4/0xcc drivers/net/caif/caif_serial.c:282 __netdev_start_xmit include/linux/netdevice.h:4819 [inline] netdev_start_xmit include/linux/netdevice.h:4833 [inline] xmit_one net/core/dev.c:3590 [inline] dev_hard_start_xmit+0xd4/0x1ec net/core/dev.c:3606 __dev_queue_xmit+0x78c/0xc88 net/core/dev.c:4256 dev_queue_xmit include/linux/netdevice.h:3008 [inline] tx+0x74/0x118 drivers/block/aoe/aoenet.c:63 kthread+0x90/0x154 kernel/kthread.c:357 kthread+0x12c/0x158 kernel/kthread.c:376 ret_from_fork+0x10/0x20