watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.5:10405] Modules linked in: irq event stamp: 4132847 hardirqs last enabled at (4132846): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4132847): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4122714): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4122717): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 10405 Comm: syz-executor.5 Not tainted 6.2.0-rc1-next-20221226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:___slab_alloc+0x1d4/0x1080 Code: 75 28 0f 85 22 04 00 00 49 c7 45 28 00 00 00 00 48 c7 c6 e2 69 7c 81 4c 89 ef e8 37 6f af ff 48 83 3c 24 00 0f 85 53 01 00 00 <48> 83 7b 18 00 0f 84 ef 04 00 00 9c 41 5d fa 41 81 e5 00 02 00 00 RSP: 0018:ffff88806cf098c0 EFLAGS: 00000206 RAX: 00000000003f0fcc RBX: ffff88806cf3d880 RCX: ffffffff812b3b2f RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000000000 RBP: ffff88800844f780 R08: 0000000000000001 R09: ffffffff8763290f R10: fffffbfff0ec6521 R11: 0000000000000001 R12: 00000000ffffffff R13: ffff88806cf3d8a0 R14: ffff888016deb580 R15: 0000000000000000 FS: 00007f09a9d24700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f09a9d03718 CR3: 000000004aa30000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __slab_alloc.constprop.0+0x4d/0x90 kmem_cache_alloc+0x356/0x410 __create_object+0x3d/0xc40 __kmem_cache_alloc_node+0x25b/0x400 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xc70 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 Code: be a8 01 00 00 e8 a0 ff ff ff 31 c0 e9 1d fc f7 02 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 65 8b 05 7d ab ba 7e 89 c1 48 8b 34 24 81 e1 00 01 00 RSP: 0018:ffff88804b72fb00 EFLAGS: 00000202 RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffffffff815d0916 RDX: ffff888016deb580 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff88804b72fb80 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: ffffffffffffffff R14: ffff88804620f874 R15: 0000000000000001 toggle_bp_slot.constprop.0+0xd11/0x2fe0 __reserve_bp_slot+0x53f/0x670 register_perf_hw_breakpoint+0xeb/0x230 hw_breakpoint_event_init+0xa6/0x120 perf_try_init_event+0x130/0x570 perf_event_alloc.part.0+0xfb7/0x3a80 __do_sys_perf_event_open+0x4a5/0x2920 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f09ac7cfb19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f09a9d24188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f09ac8e3020 RCX: 00007f09ac7cfb19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000200 RBP: 00007f09ac829f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff20457cff R14: 00007f09a9d24300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess): 0: 75 28 jne 0x2a 2: 0f 85 22 04 00 00 jne 0x42a 8: 49 c7 45 28 00 00 00 movq $0x0,0x28(%r13) f: 00 10: 48 c7 c6 e2 69 7c 81 mov $0xffffffff817c69e2,%rsi 17: 4c 89 ef mov %r13,%rdi 1a: e8 37 6f af ff callq 0xffaf6f56 1f: 48 83 3c 24 00 cmpq $0x0,(%rsp) 24: 0f 85 53 01 00 00 jne 0x17d * 2a: 48 83 7b 18 00 cmpq $0x0,0x18(%rbx) <-- trapping instruction 2f: 0f 84 ef 04 00 00 je 0x524 35: 9c pushfq 36: 41 5d pop %r13 38: fa cli 39: 41 81 e5 00 02 00 00 and $0x200,%r13d