watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [aoe_tx0:1385] Modules linked in: irq event stamp: 35030169 hardirqs last enabled at (35030168): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (35030168): [] _raw_spin_unlock_irqrestore+0x48/0x8c kernel/locking/spinlock.c:194 hardirqs last disabled at (35030169): [] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline] hardirqs last disabled at (35030169): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:486 softirqs last enabled at (5778): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (5782): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 CPU: 0 PID: 1385 Comm: aoe_tx0 Not tainted 6.1.0-rc7-syzkaller-33097-ge3cb714fb489 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 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 : ffff800014d9bba0 x29: ffff800014d9bba0 x28: ffff80000d3807c0 x27: ffff80000f172000 x26: ffff80000d707000 x25: 0000000000000000 x24: 0000000000000fff x23: 0000000000000020 x22: 0000000000000000 x21: 0000000000000000 x20: ffff80000f15b950 x19: 0000000000000000 x18: 00000000000000c0 x17: ffff80000dda8198 x16: ffff80000dbe6158 x15: ffff0000c6bb8000 x14: 0000000000000028 x13: 00000000ffffffff x12: ffff0000c6bb8000 x11: ff808000095d4bb8 x10: 0000000000000000 x9 : 0000000000000080 x8 : 00000000000000c0 x7 : ffff8000098cedf4 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000002 x1 : ffff80000ceb24de x0 : ffff8001f1cee000 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:405 [inline] uart_write_room+0xcc/0x180 drivers/tty/serial/serial_core.c:615 tty_write_room+0x30/0x4c drivers/tty/tty_ioctl.c:80 handle_tx+0x80/0x34c drivers/net/caif/caif_serial.c:226 caif_xmit+0xa4/0xe0 drivers/net/caif/caif_serial.c:282 __netdev_start_xmit include/linux/netdevice.h:4840 [inline] netdev_start_xmit include/linux/netdevice.h:4854 [inline] xmit_one net/core/dev.c:3590 [inline] dev_hard_start_xmit+0xd4/0x1ec net/core/dev.c:3606 __dev_queue_xmit+0x83c/0xdb8 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 drivers/block/aoe/aoecmd.c:1229 kthread+0x12c/0x158 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:863