watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/0:1:9] Modules linked in: irq event stamp: 291789 hardirqs last enabled at (291788): [] queue_work_on+0x100/0x1a0 kernel/workqueue.c:2414 hardirqs last disabled at (291789): [] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (291789): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last enabled at (291780): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (291784): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.10.0-rc5-syzkaller-gb4a3f9b4863a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: wg-kex-wg1 wg_packet_handshake_receive_worker pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : queue_work_on+0x144/0x1a0 kernel/workqueue.c:2415 lr : queue_work_on+0x140/0x1a0 kernel/workqueue.c:2414 sp : ffff800093fe7610 x29: ffff800093fe7610 x28: dfff800000000000 x27: ffff0000c6a11c20 x26: 0000000000800001 x25: 0000000000000000 x24: 0000000000000000 x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000d46f4000 x20: 0000000000000001 x19: 00000000000000c0 x18: ffff800093fe6f60 x17: 0000000000032841 x16: ffff800080338814 x15: 0000000000000001 x14: 1fffe000367accf0 x13: 0000000000000000 x12: 0000000000000003 x11: 0000000000000200 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c19c8000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : 0000000000000000 x2 : 0000000000000002 x1 : 0000000000000080 x0 : 0000000000000000 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] queue_work_on+0x144/0x1a0 kernel/workqueue.c:2414 wg_queue_enqueue_per_device_and_peer drivers/net/wireguard/queueing.h:176 [inline] wg_packet_create_data drivers/net/wireguard/send.c:320 [inline] wg_packet_send_staged_packets+0xe38/0x1460 drivers/net/wireguard/send.c:388 wg_packet_send_keepalive+0x140/0x244 drivers/net/wireguard/send.c:239 wg_receive_handshake_packet drivers/net/wireguard/receive.c:186 [inline] wg_packet_handshake_receive_worker+0x594/0xc60 drivers/net/wireguard/receive.c:213 process_one_work+0x79c/0x15b8 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x938/0xef4 kernel/workqueue.c:3393 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.10.0-rc5-syzkaller-gb4a3f9b4863a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : handle_softirqs+0x1c4/0xbfc kernel/softirq.c:542 lr : handle_softirqs+0x1c0/0xbfc kernel/softirq.c:538 sp : ffff800080017f00 x29: ffff800080017f80 x28: 0000000000000186 x27: 1fffe0001836e001 x26: ffff80008f19d000 x25: ffff0000c1b70010 x24: ffff0000c1b70008 x23: ffff0000c1b7002c x22: dfff800000000000 x21: ffff80008f0e6cfc x20: 00000000ffffd494 x19: ffff0001b3d89f00 x18: 1fffe000367ae9de x17: ffff800124c8e000 x16: ffff800080338814 x15: 0000000000000001 x14: ffff80008f1a0558 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000000101 x10: 0000000000000003 x9 : 0000000000000000 x8 : 00000000000705ea x7 : ffff80008044d544 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0000c1b70000 x1 : ffff80008b1e04a0 x0 : ffff800124c8e000 Call trace: __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline] handle_softirqs+0x1c4/0xbfc kernel/softirq.c:538 __do_softirq+0x14/0x20 kernel/softirq.c:588 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:889 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x1d8/0x434 kernel/softirq.c:637 irq_exit_rcu+0x14/0x84 kernel/softirq.c:649 __el1_irq arch/arm64/kernel/entry-common.c:537 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:551 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:556 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:594 __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:191 [inline] do_idle+0x1f0/0x4e4 kernel/sched/idle.c:332 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:430 secondary_start_kernel+0x1bc/0x1e4 arch/arm64/kernel/smp.c:276 __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:417