watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [aoe_tx0:1372] Modules linked in: irq event stamp: 32760787 hardirqs last enabled at (32760786): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (32760786): [] _raw_spin_unlock_irqrestore+0x48/0x8c kernel/locking/spinlock.c:194 hardirqs last disabled at (32760787): [] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline] hardirqs last disabled at (32760787): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:486 softirqs last enabled at (5836): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (5842): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 CPU: 1 PID: 1372 Comm: aoe_tx0 Not tainted 6.2.0-rc4-syzkaller-16807-gedb2f0dc90f2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 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 : ffff800014d5bb80 x29: ffff800014d5bb80 x28: ffff0000c51f0c30 x27: 0000000000000000 x26: ffff80000f30de50 x25: 0000000000000002 x24: 0000000000000001 x23: ffff000113ca1cb0 x22: 0000000000000020 x21: 0000000000000001 x20: ffff80000f30de50 x19: 0000000000000000 x18: 00000000000000c0 x17: ffff80000df59158 x16: ffff80000dd97118 x15: ffff0000c5089a00 x14: 0000000000000028 x13: 00000000ffffffff x12: ffff0000c5089a00 x11: ff808000095f9ae0 x10: 0000000000000000 x9 : 0000000000000080 x8 : 00000000000000c0 x7 : ffff800009938890 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000002 x1 : ffff80000d054b63 x0 : ffff8001f1b5b000 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+0x204/0x458 drivers/tty/serial/serial_core.c:584 handle_tx+0x10c/0x34c drivers/net/caif/caif_serial.c:236 caif_xmit+0xa4/0xe0 drivers/net/caif/caif_serial.c:282 __netdev_start_xmit include/linux/netdevice.h:4865 [inline] netdev_start_xmit include/linux/netdevice.h:4879 [inline] xmit_one net/core/dev.c:3583 [inline] dev_hard_start_xmit+0xd4/0x1ec net/core/dev.c:3599 __dev_queue_xmit+0x83c/0xdb8 net/core/dev.c:4249 dev_queue_xmit include/linux/netdevice.h:3035 [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