loop5: detected capacity change from 0 to 264192 watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.2:5347] Modules linked in: irq event stamp: 3830701 hardirqs last enabled at (3830700): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (3830701): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (3718492): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (3718495): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 5347 Comm: syz-executor.2 Not tainted 6.1.0-next-20221213 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x1fd/0x2130 Code: 48 89 54 24 28 48 89 74 24 20 44 89 5c 24 18 e8 89 63 6a 00 48 8b 54 24 28 48 8b 74 24 20 44 8b 5c 24 18 8b 0c 95 0c 4c 49 86 <8d> 56 01 48 b8 00 00 00 00 00 fc ff df 48 8d 3c 95 0c 4c 49 86 49 RSP: 0018:ffff88806ce097c8 EFLAGS: 00000246 RAX: 0000000000000003 RBX: 0000000000000002 RCX: 00000000000209ce RDX: 0000000000007d07 RSI: 0000000000007d07 RDI: ffffffff864b4028 RBP: ffff88806ce098a0 R08: ffffffff860903a8 R09: ffffffff860903ac R10: ffffed100d9c1316 R11: 0000000000038001 R12: ffff88806ce09889 R13: ffff88806ce098a8 R14: ffff88806ce09848 R15: ffffffff817d07c1 FS: 00007f66a311c700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c423000 CR3: 000000004866c000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 __kasan_record_aux_stack+0x95/0xb0 __call_rcu_common.constprop.0+0x6a/0x9f0 __kmem_cache_free+0x95/0x410 skb_release_data+0x6d8/0x810 consume_skb+0xcb/0x170 mac80211_hwsim_tx_frame+0x1f6/0x2a0 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:lock_acquire.part.0+0x14d/0x340 Code: 87 84 48 83 c4 20 e8 f2 25 14 03 b8 ff ff ff ff 65 0f c1 05 bd 6c d6 7e 83 f8 01 0f 85 9f 01 00 00 48 85 ed 0f 85 90 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffff88804d5efb50 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff11009abdf6c RCX: 00000000000038be RDX: 1ffff110011f412b RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000200 R08: 0000000000000000 R09: ffffffff876348d7 R10: fffffbfff0ec691a R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff856c6800 fs_reclaim_acquire+0xda/0x170 kmem_cache_alloc+0x40/0x410 __create_object+0x3d/0xc10 kmem_cache_alloc+0x273/0x410 __alloc_file+0x21/0x240 alloc_empty_file+0x71/0x170 alloc_file+0x59/0x800 alloc_file_pseudo+0x16e/0x260 __shmem_file_setup+0x144/0x320 __do_sys_memfd_create+0x1ca/0x4e0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f66a5ba6b19 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:00007f66a311bf48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020000040 RCX: 00007f66a5ba6b19 RDX: 0000000010020000 RSI: 0000000000000000 RDI: 00007f66a5c000fb RBP: 0000000000000002 R08: 0000020000010000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000008100000 R13: 00000000200000c0 R14: 0000000008100000 R15: 0000000020000040 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 5350 Comm: syz-executor.7 Not tainted 6.1.0-next-20221213 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:check_preemption_disabled+0xe/0x180 Code: 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 56 41 55 49 89 f5 41 54 55 48 89 fd 53 <0f> 1f 44 00 00 65 44 8b 25 21 4a c3 7b 65 8b 1d 16 4a c3 7b 81 e3 RSP: 0018:ffff88806cf09150 EFLAGS: 00000002 RAX: 0000000000000001 RBX: ffff88804a1ade00 RCX: 0000000000000100 RDX: 1ffff11009435c35 RSI: ffffffff849ef960 RDI: ffffffff849ef9a0 RBP: ffffffff849ef9a0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88806cf09440 R13: ffffffff849ef960 R14: ffff88806cf097d8 R15: 0000000000000008 FS: 00007f0210fdc700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055df4f026000 CR3: 000000000f2ea000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: rcu_is_watching+0x15/0xb0 rcu_read_lock_held+0x20/0x50 perf_output_begin_forward+0x140/0xb00 perf_event_output_forward+0xf6/0x280 __perf_event_overflow+0x3ed/0x760 perf_swevent_hrtimer+0x361/0x3d0 __hrtimer_run_queues+0x17f/0xc70 hrtimer_interrupt+0x319/0x770 __sysvec_apic_timer_interrupt+0x148/0x500 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:unwind_next_frame+0x1c2/0x2130 Code: 8d 43 ff 39 c6 0f 83 8c 15 00 00 48 b8 00 00 00 00 00 fc ff df 89 f2 48 8d 3c 95 0c 4c 49 86 48 89 f9 48 c1 e9 03 0f b6 0c 01 <48> 89 f8 83 e0 07 83 c0 03 38 c8 7c 27 84 c9 74 23 48 89 54 24 28 RSP: 0018:ffff88806cf09888 EFLAGS: 00000217 RAX: dffffc0000000000 RBX: 0000000000000002 RCX: 0000000000000000 RDX: 0000000000000ba4 RSI: 0000000000000ba4 RDI: ffffffff86497a9c RBP: ffff88806cf099b0 R08: ffffffff8605192a R09: ffffffff8605192e R10: ffffed100d9e1338 R11: 0000000000038001 R12: ffff88806cf09999 R13: ffff88806cf099b8 R14: ffff88806cf09958 R15: ffffffff810ba4c2 __unwind_start+0x513/0x7c0 arch_stack_walk+0x63/0xf0 stack_trace_save+0x90/0xd0 __create_object+0x389/0xc10 __kmem_cache_alloc_node+0x25b/0x400 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3d9/0x1310 ieee80211_beacon_get_tim+0x99/0x4f0 mac80211_hwsim_beacon_tx+0x1d2/0xab0 __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:__read_once_word_nocheck+0x3/0x10 Code: e9 8b fd ff ff e8 ed 6c 6a 00 e9 43 fd ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 0c a3 2f 03 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 RSP: 0018:ffff88804a4b7330 EFLAGS: 00000202 RAX: 00007f0213a65c27 RBX: 0000000000000001 RCX: 0000000000000001 RDX: ffff88804a4b8001 RSI: ffff88804a4b7f58 RDI: ffff88804a4b7fd8 RBP: ffff88804a4b7410 R08: ffffffff8646ba6e R09: ffffffff8646ba72 R10: ffffed1009496e84 R11: 0000000000038001 R12: ffff88804a4b73f9 R13: ffff88804a4b7418 R14: ffff88804a4b73b8 R15: ffffffff8646ba73 unwind_next_frame+0xaf4/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc+0x1e1/0x410 __es_insert_extent+0x3a9/0x12f0 ext4_es_insert_extent+0x2db/0xc00 ext4_map_blocks+0xa0d/0x19e0 ext4_getblk+0x604/0x7b0 ext4_bread+0x2e/0x1a0 ext4_append+0x21d/0x530 ext4_init_new_dir+0x262/0x4c0 ext4_mkdir+0x3d3/0xb20 vfs_mkdir+0x495/0x740 do_mkdirat+0x16e/0x2d0 __x64_sys_mkdir+0xf6/0x150 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f0213a65c27 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 53 00 00 00 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:00007f0210fdbfa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0213a65c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000020000100 RBP: 00007f0210fdc040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020000100 R14: 00007f0210fdc000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 48 89 54 24 28 mov %rdx,0x28(%rsp) 5: 48 89 74 24 20 mov %rsi,0x20(%rsp) a: 44 89 5c 24 18 mov %r11d,0x18(%rsp) f: e8 89 63 6a 00 callq 0x6a639d 14: 48 8b 54 24 28 mov 0x28(%rsp),%rdx 19: 48 8b 74 24 20 mov 0x20(%rsp),%rsi 1e: 44 8b 5c 24 18 mov 0x18(%rsp),%r11d 23: 8b 0c 95 0c 4c 49 86 mov -0x79b6b3f4(,%rdx,4),%ecx * 2a: 8d 56 01 lea 0x1(%rsi),%edx <-- trapping instruction 2d: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 34: fc ff df 37: 48 8d 3c 95 0c 4c 49 lea -0x79b6b3f4(,%rdx,4),%rdi 3e: 86 3f: 49 rex.WB