watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [aoe_tx0:2333] Modules linked in: irq event stamp: 51375157 hardirqs last enabled at (51375156): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (51375156): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (51375157): [] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (51375157): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last enabled at (1236): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1240): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 CPU: 1 UID: 0 PID: 2333 Comm: aoe_tx0 Not tainted 6.11.0-rc4-syzkaller-g048499f92ed7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 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+0x44/0x98 kernel/locking/spinlock.c:194 lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] lr : _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 sp : ffff80009d8a7720 x29: ffff80009d8a7720 x28: ffff0000ed18c430 x27: ffff0000ed18c3c0 x26: ffff0000d0cc8ce8 x25: ffff0000cf0ad020 x24: 0000000000000000 x23: 0000000000000000 x22: 0000000000000000 x21: dfff800000000000 x20: ffff8000941deb80 x19: 0000000000000000 x18: ffff80009d8a7400 x17: 000000000002b345 x16: ffff800080345244 x15: 0000000000000001 x14: 1ffff0001283bd70 x13: 0000000000000000 x12: 0000000000000003 x11: 0000000000000202 x10: 0000000000000003 x9 : 0000000000000000 x8 : 00000000000000c0 x7 : ffff800083d38790 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000002 x1 : ffff80008b462a00 x0 : ffff80012489c000 Call trace: __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] uart_port_unlock_irqrestore include/linux/serial_core.h:669 [inline] uart_write_room+0x150/0x348 drivers/tty/serial/serial_core.c:647 tty_write_room+0x6c/0x8c drivers/tty/tty_ioctl.c:69 handle_tx+0x120/0x604 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:4913 [inline] netdev_start_xmit include/linux/netdevice.h:4922 [inline] xmit_one net/core/dev.c:3580 [inline] dev_hard_start_xmit+0x260/0x904 net/core/dev.c:3596 __dev_queue_xmit+0x168c/0x3504 net/core/dev.c:4423 dev_queue_xmit include/linux/netdevice.h:3105 [inline] tx+0x9c/0x1cc drivers/block/aoe/aoenet.c:62 kthread+0x1ac/0x374 drivers/block/aoe/aoecmd.c:1229 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.11.0-rc4-syzkaller-g048499f92ed7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:50 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:124 sp : ffff80008f487cf0 x29: ffff80008f487cf0 x28: dfff800000000000 x27: 1ffff00011e90fac x26: ffff80008f50d000 x25: 0000000000000000 x24: 0000000000000001 x23: 1ffff00011ea1aae x22: ffff80008f50d570 x21: 0000000000000000 x20: ffff80008f534f40 x19: ffff8000802ed62c x18: 1fffe00036799fe6 x17: ffff80008f50d000 x16: ffff8000802ecef0 x15: 0000000000000001 x14: 1fffe0003679bd40 x13: 0000000000000000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000 x8 : 00000000000573eb x7 : ffff80008048c07c x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008b2f3ef4 x2 : 0000000000000000 x1 : ffff80008b462a00 x0 : ffff800124878000 Call trace: __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:48 cpuidle_idle_call kernel/sched/idle.c:185 [inline] do_idle+0x1f0/0x4e4 kernel/sched/idle.c:326 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:424 rest_init+0x2dc/0x2f4 init/main.c:747 start_kernel+0x3f4/0x4f4 init/main.c:1103 __primary_switched+0x84/0x8c arch/arm64/kernel/head.S:243