watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [kworker/u4:0:8] Modules linked in: irq event stamp: 549361 hardirqs last enabled at (549360): [] kvm_wait arch/x86/kernel/kvm.c:1066 [inline] hardirqs last enabled at (549360): [] kvm_wait+0x8d/0x100 arch/x86/kernel/kvm.c:1048 hardirqs last disabled at (549361): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (490606): [] rcu_read_unlock_bh include/linux/rcupdate.h:772 [inline] softirqs last enabled at (490606): [] mod_peer_timer drivers/net/wireguard/timers.c:38 [inline] softirqs last enabled at (490606): [] wg_timers_handshake_initiated+0x158/0x250 drivers/net/wireguard/timers.c:184 softirqs last disabled at (490622): [] spin_lock_bh include/linux/spinlock.h:354 [inline] softirqs last disabled at (490622): [] batadv_tt_local_commit_changes+0x15/0x30 net/batman-adv/translation-table.c:3718 CPU: 1 PID: 8 Comm: kworker/u4:0 Not tainted 6.0.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet RIP: 0010:kvm_wait+0x98/0x100 arch/x86/kernel/kvm.c:1070 Code: fa 83 e2 07 38 d0 7f 04 84 c0 75 63 0f b6 07 40 38 c6 74 35 48 83 c4 10 c3 c3 e8 a3 1b 46 00 66 90 0f 00 2d ca 09 da 07 fb f4 <48> 83 c4 10 c3 89 74 24 0c 48 89 3c 24 e8 76 1a 46 00 8b 74 24 0c RSP: 0018:ffffc900000d7a10 EFLAGS: 00000256 RAX: 00000000000861f0 RBX: 0000000000000000 RCX: 1ffffffff1f44fce RDX: 0000000000000000 RSI: ffffffff890be400 RDI: ffffffff8964f080 RBP: ffff88807e241328 R08: 0000000000000001 R09: ffffffff8f9cda37 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: ffffed100fc48265 R14: 0000000000000001 R15: ffff8880b9d3ad40 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffe9fde998 CR3: 0000000072255000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:603 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x8c7/0xb50 kernel/locking/qspinlock.c:511 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x200/0x2a0 kernel/locking/spinlock_debug.c:115 spin_lock_bh include/linux/spinlock.h:354 [inline] batadv_tt_local_commit_changes+0x15/0x30 net/batman-adv/translation-table.c:3718 batadv_iv_ogm_schedule_buff+0xd8b/0x1030 net/batman-adv/bat_iv_ogm.c:812 batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:869 [inline] batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:862 [inline] batadv_iv_send_outstanding_bat_ogm_packet+0x59f/0x920 net/batman-adv/bat_iv_ogm.c:1713 process_one_work+0x865/0x13d0 kernel/workqueue.c:2289 worker_thread+0x598/0xec0 kernel/workqueue.c:2436 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4086 Comm: syz-executor.0 Not tainted 6.0.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:match_held_lock+0x77/0xc0 kernel/locking/lockdep.c:5143 Code: 53 20 81 e2 ff 1f 00 00 48 39 d0 0f 94 c0 48 83 c4 08 0f b6 c0 5b c3 31 f6 e8 c5 fe ff ff 48 85 c0 75 b2 31 c0 48 83 c4 08 5b 48 83 c4 08 b8 01 00 00 00 5b c3 e8 c8 25 f6 fa 85 c0 74 e4 8b RSP: 0018:ffffc9000405f268 EFLAGS: 00000096 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8b17f1c0 RDI: ffff88807cbd27b8 RBP: ffffffff8b17f1c0 R08: 0000000000000000 R09: ffffffff8ceec417 R10: fffffbfff19dd882 R11: 0000000000000000 R12: ffff88807cbd1d40 R13: ffff88807cbd27b8 R14: 00000000ffffffff R15: ffff88807cbd27b8 FS: 00007f6368150700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f63670dc980 CR3: 0000000072255000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __lock_is_held kernel/locking/lockdep.c:5407 [inline] lock_is_held_type+0xa7/0x140 kernel/locking/lockdep.c:5709 lock_is_held include/linux/lockdep.h:283 [inline] rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125 trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x480/0x570 kernel/locking/lockdep.c:5637 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:354 [inline] batadv_tt_local_purge+0xfb/0x310 net/batman-adv/translation-table.c:1355 batadv_tt_local_resize_to_mtu+0x78/0xe0 net/batman-adv/translation-table.c:3957 batadv_hardif_activate_interface.part.0.cold+0x141/0x1b4 net/batman-adv/hard-interface.c:664 batadv_hardif_activate_interface net/batman-adv/hard-interface.c:755 [inline] batadv_hardif_enable_interface+0x8a7/0x960 net/batman-adv/hard-interface.c:747 batadv_softif_slave_add+0x48/0xc0 net/batman-adv/soft-interface.c:839 rtnl_newlink_create net/core/rtnetlink.c:3380 [inline] __rtnl_newlink+0xf47/0x14c0 net/core/rtnetlink.c:3580 rtnl_newlink+0x5a/0x90 net/core/rtnetlink.c:3593 rtnetlink_rcv_msg+0x32d/0x9a0 net/core/rtnetlink.c:6090 netlink_rcv_skb+0x118/0x370 net/netlink/af_netlink.c:2501 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x433/0x710 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x782/0xc30 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xab/0xe0 net/socket.c:734 ____sys_sendmsg+0x5c2/0x7a0 net/socket.c:2482 ___sys_sendmsg+0xdb/0x160 net/socket.c:2536 __sys_sendmsg+0xc3/0x160 net/socket.c:2565 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f6367089109 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6368150168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f636719bf60 RCX: 00007f6367089109 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005 RBP: 00007f63670e305d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffed4e09f4f R14: 00007f6368150300 R15: 0000000000022000