watchdog: BUG: soft lockup - CPU#1 stuck for 144s! [syz-executor.1:6170] CPU#1 Utilization every 22s during lockup: #1: 99% system, 2% softirq, 1% hardirq, 0% idle #2: 99% system, 2% softirq, 1% hardirq, 0% idle #3: 99% system, 2% softirq, 1% hardirq, 0% idle #4: 99% system, 1% softirq, 1% hardirq, 0% idle #5: 99% system, 2% softirq, 1% hardirq, 0% idle Modules linked in: irq event stamp: 519238 hardirqs last enabled at (519237): [] kvm_wait+0x23b/0x2c0 hardirqs last disabled at (519238): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1043 softirqs last enabled at (519230): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last enabled at (519230): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last enabled at (519230): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 softirqs last disabled at (519147): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (519147): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (519147): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 CPU: 1 PID: 6170 Comm: syz-executor.1 Not tainted 6.9.0-syzkaller-08544-g4b377b4868ef #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline] RIP: 0010:kvm_wait+0x250/0x2c0 arch/x86/kernel/kvm.c:1060 Code: 3b 45 0f b6 f6 44 89 ff 44 89 f6 e8 2a eb 55 00 e8 b5 59 5d 00 45 38 f7 75 15 66 90 e8 99 ea 55 00 0f 00 2d 22 d3 87 0a fb f4 50 fe ff ff e8 86 ea 55 00 fb e9 45 fe ff ff 89 d9 80 e1 07 38 RSP: 0018:ffffc90013ab78e0 EFLAGS: 00000246 RAX: ffffffff81404737 RBX: ffff88801d4554c8 RCX: 0000000000040000 RDX: ffffc90003811000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc90013ab79b0 R08: ffffffff92f9c5bf R09: 1ffffffff25f38b7 R10: dffffc0000000000 R11: fffffbfff25f38b8 R12: 1ffff92002756f20 R13: dffffc0000000000 R14: 0000000000000003 R15: 0000000000000003 FS: 00007f9fef5fd6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9fee9ad988 CR3: 000000005b2c6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:596 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:466 [inline] __pv_queued_spin_lock_slowpath+0x8d0/0xdc0 kernel/locking/qspinlock.c:508 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 include/linux/spinlock.h:351 [inline] d_instantiate+0x64/0xa0 fs/dcache.c:1879 alloc_path_pseudo fs/file_table.c:334 [inline] alloc_file_pseudo+0x19e/0x290 fs/file_table.c:346 __anon_inode_getfile fs/anon_inodes.c:109 [inline] __anon_inode_getfd fs/anon_inodes.c:234 [inline] anon_inode_getfd+0xce/0x1e0 fs/anon_inodes.c:269 bpf_enable_runtime_stats kernel/bpf/syscall.c:5516 [inline] bpf_enable_stats+0xdb/0x140 kernel/bpf/syscall.c:5537 __sys_bpf+0x75b/0x810 kernel/bpf/syscall.c:5770 __do_sys_bpf kernel/bpf/syscall.c:5794 [inline] __se_sys_bpf kernel/bpf/syscall.c:5792 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5792 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9fee87cee9 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:00007f9fef5fd0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f9fee9abf80 RCX: 00007f9fee87cee9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000020 RBP: 00007f9fee8c949e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f9fee9abf80 R15: 00007ffffc3681c8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6167 Comm: syz-executor.2 Not tainted 6.9.0-syzkaller-08544-g4b377b4868ef #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:native_apic_msr_eoi+0xf/0x20 arch/x86/include/asm/apic.h:215 Code: f8 c3 cc cc cc cc 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa b9 0b 08 00 00 31 c0 31 d2 0f 30 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 RSP: 0018:ffffc90000007d38 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffffc90000007d78 RCX: 000000000000080b RDX: 0000000000000000 RSI: ffffffff8c1fae00 RDI: ffffffff8c1fadc0 RBP: 0000000000000000 R08: ffffffff813559f1 R09: 1ffffffff1f5977d R10: dffffc0000000000 R11: fffffbfff1f5977e R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 000055555eb8b480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000717a0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: apic_eoi arch/x86/include/asm/apic.h:415 [inline] __sysvec_irq_work+0x12/0x430 arch/x86/kernel/irq_work.c:19 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0x4f/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:variable_ffs arch/x86/include/asm/bitops.h:321 [inline] RIP: 0010:handle_softirqs+0x1eb/0x990 kernel/softirq.c:542 Code: 90 00 00 00 0f b7 db 48 c7 c7 40 aa c9 8b e8 bc 22 2e 0a 65 66 c7 05 7a d1 a9 7e 00 00 e8 ad 9e 43 00 fb 49 c7 c4 c0 a0 00 8e <89> 5c 24 54 b8 ff ff ff ff 0f bc 44 24 54 41 89 c7 41 ff c7 0f 84 RSP: 0018:ffffc90000007e20 EFLAGS: 00000282 RAX: 1056311c95db2000 RBX: 0000000000000200 RCX: ffffffff8172ea4a RDX: dffffc0000000000 RSI: ffffffff8bcab5c0 RDI: ffffffff8c1fae20 RBP: ffffc90000007f50 R08: ffffffff92f9c5bf R09: 1ffffffff25f38b7 R10: dffffc0000000000 R11: fffffbfff25f38b8 R12: ffffffff8e00a0c0 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000000fdc __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17 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 09 9e 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:ffffc90013cdfd20 EFLAGS: 00000206 RAX: 1056311c95db2000 RBX: 1ffff9200279bfac RCX: ffffffff8172ea4a RDX: dffffc0000000000 RSI: ffffffff8bcab5c0 RDI: ffffffff8c1fae20 RBP: ffffc90013cdfdf0 R08: ffffffff92f9c5bf R09: 1ffffffff25f38b7 R10: dffffc0000000000 R11: fffffbfff25f38b8 R12: 0000000000000000 R13: ffff888015f7c060 R14: ffffc90013cdfd60 R15: 1ffff9200279bfa8 __rcu_read_unlock+0xa1/0x110 kernel/rcu/tree_plugin.h:426 dput+0x197/0x2b0 fs/dcache.c:844 __fput+0x678/0x8a0 fs/file_table.c:430 __do_sys_close fs/open.c:1556 [inline] __se_sys_close fs/open.c:1541 [inline] __x64_sys_close+0x7f/0x110 fs/open.c:1541 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2efb47bdda Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24 RSP: 002b:00007ffd77bae580 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f2efb47bdda RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 RBP: 00007ffd77bae658 R08: 00007f2efb400000 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000293 R12: 000000000001e55b R13: 00007f2efb5abf8c R14: 00007f2efb5abf80 R15: 0000000000000032