loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop3, logical block 10, lost async page write FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) Bluetooth: hci1: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.7:15449] Modules linked in: irq event stamp: 6624057 hardirqs last enabled at (6624056): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (6624057): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (6597098): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (6597101): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 15449 Comm: syz-executor.7 Not tainted 6.1.0-rc8-next-20221206 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_get_return_address+0x72/0xa0 Code: ea 03 80 3c 02 00 75 36 48 8b 7b 58 e8 17 13 0c 00 85 c0 74 cf 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 <75> 1c 48 8b 43 58 5b 5d e9 25 10 2f 03 e8 5c ad 6a 00 eb a0 48 89 RSP: 0018:ffff88806ce09618 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88806ce09630 RCX: 0000000000000000 RDX: 1ffff1100d9c12d1 RSI: ffff88804710fe78 RDI: ffffffff8182c5a3 RBP: ffff88806ce09688 R08: ffffffff860f7218 R09: ffffffff860f721c R10: ffff88806ce09ff8 R11: ffff88806ce09670 R12: ffff88806ce096f8 R13: 0000000000000000 R14: ffff8880341b0000 R15: 0000000000000170 FS: 00007f396d662700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c7fe9fa468 CR3: 000000003a8d4000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x9d/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 __create_object+0x3d/0xc10 __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/0xba0 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:gather_stats.constprop.0+0x3c6/0xeb0 Code: 04 00 00 e8 dc c6 a8 ff 0f 1f 44 00 00 e8 d2 c6 a8 ff 49 89 df 49 89 dd e8 c7 c6 a8 ff be 08 00 00 00 4c 89 ff e8 9a fe dc ff <4c> 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f RSP: 0018:ffff88804710f640 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffffea00010c8cc0 RCX: ffffffff81a08dc6 RDX: fffff94000219199 RSI: 0000000000000008 RDI: ffffea00010c8cc0 RBP: ffff8880479b9860 R08: 0000000000000000 R09: ffffea00010c8cc7 R10: fffff94000219198 R11: 0000000000000001 R12: ffffea00010c8cc8 R13: ffffea00010c8cc0 R14: 0000000000000003 R15: ffffea00010c8cc0 gather_pte_stats+0x2ca/0x410 walk_pgd_range+0xce1/0x1640 __walk_page_range+0x5f0/0x720 walk_page_vma+0x1b7/0x2b0 show_numa_map+0x26a/0xc10 seq_read_iter+0xbf4/0x12b0 seq_read+0x171/0x210 do_iter_read+0x4f1/0x750 vfs_readv+0xe5/0x160 __x64_sys_preadv+0x233/0x310 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f39700ecb19 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:00007f396d662188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00007f39701fff60 RCX: 00007f39700ecb19 RDX: 0000000000000001 RSI: 0000000020001140 RDI: 0000000000000005 RBP: 00007f3970146f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe842dc3af R14: 00007f396d662300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.1.0-rc8-next-20221206 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc80 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 cd 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 ce 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e5 00 00 RSP: 0018:ffff88806cf09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8441c9bb RDX: fffffbfff0b483a1 RSI: 0000000000000004 RDI: ffffffff85a41d00 RBP: ffffffff85a41d00 R08: 0000000000000000 R09: ffffffff85a41d03 R10: fffffbfff0b483a0 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b483a0 R14: 0000000000000001 R15: 1ffff1100d9e1346 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c000692000 CR3: 000000000eb22000 CR4: 0000000000350ee0 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 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/0xba0 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:default_idle+0xf/0x20 Code: 68 01 fe cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d b3 d8 40 00 fb f4 70 44 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 RSP: 0018:ffff888008ebfe58 EFLAGS: 00000206 RAX: ffffffff8441a580 RBX: ffff888008e4d040 RCX: ffffffff843fb002 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000001 R09: ffff88806cf34f03 R10: ffffed100d9e69e0 R11: 0000000000000001 R12: ffffed10011c9a08 R13: ffffffff85d07b10 R14: 0000000000000000 R15: dffffc0000000000 default_idle_call+0x88/0xd0 do_idle+0x3bd/0x530 cpu_startup_entry+0x18/0x20 start_secondary+0x1cc/0x220 secondary_startup_64_no_verify+0xe0/0xeb Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 03 80 3c 02 00 75 add 0x7500023c(%rax),%eax 6: 36 48 8b 7b 58 mov %ss:0x58(%rbx),%rdi b: e8 17 13 0c 00 callq 0xc1327 10: 85 c0 test %eax,%eax 12: 74 cf je 0xffffffe3 14: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1b: fc ff df 1e: 48 89 ea mov %rbp,%rdx 21: 48 c1 ea 03 shr $0x3,%rdx 25: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 29: 75 1c jne 0x47 <-- trapping instruction 2b: 48 8b 43 58 mov 0x58(%rbx),%rax 2f: 5b pop %rbx 30: 5d pop %rbp 31: e9 25 10 2f 03 jmpq 0x32f105b 36: e8 5c ad 6a 00 callq 0x6aad97 3b: eb a0 jmp 0xffffffdd 3d: 48 rex.W 3e: 89 .byte 0x89