watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [kworker/0:2:10161] Modules linked in: irq event stamp: 2274318 hardirqs last enabled at (2274317): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 hardirqs last disabled at (2274318): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1097 softirqs last enabled at (2245328): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (2245328): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 softirqs last disabled at (2245299): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (2245299): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 CPU: 0 PID: 10161 Comm: kworker/0:2 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events prog_array_map_clear_deferred RIP: 0010:lock_acquire+0x1ef/0x510 kernel/locking/lockdep.c:5593 Code: d6 a5 7e 83 f8 01 0f 85 b4 02 00 00 9c 58 f6 c4 02 0f 85 9f 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffffc9000b5d79f0 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff920016baf40 RCX: ffffffff815c50df RDX: 1ffff11008a5f88b RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8fd38b1f R10: fffffbfff1fa7163 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff88807e5d70c8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556102848 CR3: 000000000b68e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __mutex_lock_common kernel/locking/mutex.c:607 [inline] __mutex_lock+0x12f/0x12f0 kernel/locking/mutex.c:740 fd_array_map_delete_elem+0x120/0x2e0 kernel/bpf/arraymap.c:821 bpf_fd_array_map_clear kernel/bpf/arraymap.c:871 [inline] prog_array_map_clear_deferred+0x10b/0x1b0 kernel/bpf/arraymap.c:1050 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 18623 Comm: kworker/1:4 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events prog_array_map_clear_deferred RIP: 0010:__might_sleep+0x30/0x150 kernel/sched/core.c:9456 Code: 00 fc ff df 41 54 41 89 f4 55 48 89 fd 53 65 48 8b 1c 25 40 70 02 00 48 8d 7b 18 48 83 ec 10 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e d0 00 00 00 8b 73 18 85 f6 74 3e 65 48 8b RSP: 0018:ffffc9000365fab0 EFLAGS: 00000a06 RAX: 0000000000000000 RBX: ffff888062138000 RCX: 0000000000000000 RDX: 1ffff1100c427003 RSI: 0000000000000248 RDI: ffff888062138018 RBP: ffffffff898bf860 R08: ffffffff818d6b40 R09: ffffc9000365fb87 R10: ffffffff818d6aa0 R11: 0000000000000000 R12: 0000000000000248 R13: dffffc0000000000 R14: 00000000070b7a08 R15: 0000000008000009 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc00a6ca9e0 CR3: 000000000b68e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __mutex_lock_common kernel/locking/mutex.c:584 [inline] __mutex_lock+0x9f/0x12f0 kernel/locking/mutex.c:740 fd_array_map_delete_elem+0x120/0x2e0 kernel/bpf/arraymap.c:821 bpf_fd_array_map_clear kernel/bpf/arraymap.c:871 [inline] prog_array_map_clear_deferred+0x10b/0x1b0 kernel/bpf/arraymap.c:1050 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: a5 movsl %ds:(%rsi),%es:(%rdi) 1: 7e 83 jle 0xffffff86 3: f8 clc 4: 01 0f add %ecx,(%rdi) 6: 85 b4 02 00 00 9c 58 test %esi,0x589c0000(%rdx,%rax,1) d: f6 c4 02 test $0x2,%ah 10: 0f 85 9f 02 00 00 jne 0x2b5 16: 48 83 7c 24 08 00 cmpq $0x0,0x8(%rsp) 1c: 74 01 je 0x1f 1e: fb sti 1f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 26: fc ff df * 29: 48 01 c3 add %rax,%rbx <-- trapping instruction 2c: 48 c7 03 00 00 00 00 movq $0x0,(%rbx) 33: 48 c7 43 08 00 00 00 movq $0x0,0x8(%rbx) 3a: 00 3b: 48 rex.W 3c: 8b .byte 0x8b 3d: 84 .byte 0x84 3e: 24 .byte 0x24