watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz-executor.2:9317] CPU#0 Utilization every 22s during lockup: #1: 100% system, 0% softirq, 1% hardirq, 0% idle #2: 100% system, 0% softirq, 1% hardirq, 0% idle #3: 100% system, 0% softirq, 1% hardirq, 0% idle #4: 100% system, 0% softirq, 1% hardirq, 0% idle #5: 100% system, 0% softirq, 1% hardirq, 0% idle Modules linked in: irq event stamp: 61421 hardirqs last enabled at (61420): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (61421): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1043 softirqs last enabled at (3142): [] __tipc_sendstream+0x66c/0x14e0 net/tipc/socket.c:1584 softirqs last disabled at (3146): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (3146): [] lock_sock_nested+0x6a/0x100 net/core/sock.c:3530 CPU: 0 PID: 9317 Comm: syz-executor.2 Not tainted 6.9.0-syzkaller-12124-g96a27ee76f0e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:430 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x781/0xdc0 kernel/locking/qspinlock.c:508 Code: ff 42 0f b6 04 2b 84 c0 75 6c 66 c7 84 24 b0 00 00 00 00 01 48 8b 44 24 40 42 0f b6 04 28 84 c0 75 77 41 80 3e 00 74 0c f3 90 <41> ff c4 75 d2 e9 a0 00 00 00 4c 89 f7 be 02 00 00 00 e8 d8 d5 6a RSP: 0018:ffffc900042675e0 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 1ffff9200084ced2 RCX: ffffc90004267601 RDX: ffffc9000a1bd000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc90004267718 R08: ffffffff92fa8687 R09: 1ffffffff25f50d0 R10: dffffc0000000000 R11: fffffbfff25f50d1 R12: 00000000ffff98de R13: dffffc0000000000 R14: ffff88806052d980 R15: ffffc900042676a0 FS: 00007fb9e7e506c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ec25000 CR3: 000000006031c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline] queued_spin_lock_slowpath+0x42/0x50 arch/x86/include/asm/qspinlock.h:51 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x272/0x370 kernel/locking/spinlock_debug.c:116 spin_lock_bh include/linux/spinlock.h:356 [inline] lock_sock_nested+0x6a/0x100 net/core/sock.c:3530 lock_sock include/net/sock.h:1602 [inline] __tipc_sendstream+0x709/0x14e0 net/tipc/socket.c:1584 tipc_sendstream+0x55/0x70 net/tipc/socket.c:1548 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2585 ___sys_sendmsg net/socket.c:2639 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2668 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb9e707cee9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb9e7e500c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fb9e71b4070 RCX: 00007fb9e707cee9 RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004 RBP: 00007fb9e70c947f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fb9e71b4070 R15: 00007ffe50c7a6a8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 9313 Comm: syz-executor.2 Not tainted 6.9.0-syzkaller-12124-g96a27ee76f0e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:check_preemption_disabled+0x49/0x120 lib/smp_processor_id.c:55 Code: 74 65 8b 05 41 c0 7d 74 a9 ff ff ff 7f 74 26 65 48 8b 04 25 28 00 00 00 48 3b 44 24 08 0f 85 ce 00 00 00 89 d8 48 83 c4 10 5b <41> 5c 41 5e 41 5f c3 cc cc cc cc 48 c7 04 24 00 00 00 00 9c 8f 04 RSP: 0018:ffffc90004396ac0 EFLAGS: 00000086 RAX: 0000000000000001 RBX: 1ffff92000872d68 RCX: 0000000000040000 RDX: dffffc0000000000 RSI: ffffffff8bd00120 RDI: ffffffff8c1fe500 RBP: ffffc90004396bd8 R08: ffffffff81a4742a R09: 1ffff92000872d18 R10: dffffc0000000000 R11: fffff52000872d19 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff888021d28f28 R15: 0000000000000000 FS: 00007fb9e7e716c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020132000 CR3: 000000006031c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_call_bpf+0x613/0x8a0 kernel/trace/bpf_trace.c:152 perf_trace_run_bpf_submit+0x7c/0x1d0 kernel/events/core.c:10269 perf_trace_preemptirq_template+0x2d2/0x3f0 include/trace/events/preemptirq.h:14 trace_irq_enable+0xf1/0x120 include/trace/events/preemptirq.h:40 trace_hardirqs_on+0x18/0x40 kernel/trace/trace_preemptirq.c:56 irqentry_exit+0x63/0x90 kernel/entry/common.c:357 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:rcu_read_unlock_special+0x88/0x550 kernel/rcu/tree_plugin.h:682 Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 f9 b5 86 7e 41 f7 c4 00 00 f0 00 74 49 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a RSP: 0018:ffffc90004396e20 EFLAGS: 00000206 RAX: 65d76c130e71d700 RBX: 1ffff92000872dcc RCX: ffffffff8172c72a RDX: dffffc0000000000 RSI: ffffffff8bcab880 RDI: ffffffff8c1fe500 RBP: ffffc90004396ef8 R08: ffffffff92fa8687 R09: 1ffffffff25f50d0 R10: dffffc0000000000 R11: fffffbfff25f50d1 R12: ffffffff8e338b00 R13: ffff888021955e60 R14: ffffc90004396e60 R15: 1ffff92000872dc8 __rcu_read_unlock+0xa1/0x110 kernel/rcu/tree_plugin.h:426 tipc_sk_conn_proto_rcv net/tipc/socket.c:1373 [inline] tipc_sk_proto_rcv+0xc74/0x19a0 net/tipc/socket.c:2158 tipc_sk_filter_rcv+0x36a8/0x3950 net/tipc/socket.c:2352 tipc_sk_enqueue net/tipc/socket.c:2445 [inline] tipc_sk_rcv+0x8b3/0x1d20 net/tipc/socket.c:2497 tipc_node_xmit+0x1e1/0x1010 net/tipc/node.c:1701 tipc_node_xmit_skb+0x149/0x1b0 net/tipc/node.c:1766 tipc_recvstream+0x8ae/0xf80 net/tipc/socket.c:2095 sock_recvmsg_nosec net/socket.c:1046 [inline] sock_recvmsg+0x22f/0x280 net/socket.c:1068 ____sys_recvmsg+0x1db/0x470 net/socket.c:2804 ___sys_recvmsg net/socket.c:2846 [inline] __sys_recvmsg+0x2f0/0x3e0 net/socket.c:2876 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb9e707cee9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb9e7e710c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 00007fb9e71b3fa0 RCX: 00007fb9e707cee9 RDX: 0000000000001f00 RSI: 0000000020000500 RDI: 0000000000000003 RBP: 00007fb9e70c947f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fb9e71b3fa0 R15: 00007ffe50c7a6a8