watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.7:17418] Modules linked in: irq event stamp: 17016541 hardirqs last enabled at (17016540): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (17016541): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (16991680): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (16991683): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 17418 Comm: syz-executor.7 Not tainted 6.1.0-rc7-next-20221129 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0x8e8/0x1360 Code: 6f 08 00 00 48 8d bb 10 3e 00 00 4d 8b bd 10 3e 00 00 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 69 08 00 00 4c 23 bb 10 3e 00 00 <31> ff 4c 89 fe e8 6e 7c 4c fe 4d 85 ff 0f 84 80 fe ff ff e8 00 80 RSP: 0018:ffff88806ce09b80 EFLAGS: 00000202 RAX: 1ffff11007f79e36 RBX: ffff88803fbcb3a0 RCX: 0000000000000100 RDX: ffff888045eb3580 RSI: ffffffff82fc98a4 RDI: ffff88803fbcf1b0 RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888045674780 R13: ffff8880380db3a0 R14: ffff8880380db638 R15: 0000000000000001 FS: 00007fef4c896700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558a457221d0 CR3: 0000000042aba000 CR4: 0000000000350ef0 Call Trace: 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:ext4_get_group_desc+0x4/0x4f0 Code: ff ff e8 df 38 d5 ff e9 93 fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 <41> 57 41 56 41 55 49 89 d5 41 54 55 48 89 fd 53 4c 8d b5 50 06 00 RSP: 0018:ffff8880393b7548 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900039e4000 RDX: 0000000000000000 RSI: 000000000000000e RDI: ffff888009c8e000 RBP: ffff888009c8e000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000800 R11: 0000000000000001 R12: ffff88800f9e0000 R13: 000000000000000e R14: ffff88801bb7280c R15: 000000000000000e ext4_read_block_bitmap_nowait+0x59/0x1fc0 ext4_read_block_bitmap+0x21/0xa0 ext4_mb_mark_diskspace_used+0x189/0x1180 ext4_mb_new_blocks+0xc5b/0x4bf0 ext4_ext_map_blocks+0x1fca/0x5d40 ext4_map_blocks+0x776/0x19e0 ext4_alloc_file_blocks.isra.0+0x2c1/0xb20 ext4_fallocate+0x41a/0x3cc0 vfs_fallocate+0x48d/0xe00 __x64_sys_fallocate+0xd3/0x140 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fef4f320b19 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:00007fef4c896188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007fef4f433f60 RCX: 00007fef4f320b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007fef4f37af6d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000087ffffc R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9818d25f R14: 00007fef4c896300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 17424 Comm: syz-executor.4 Not tainted 6.1.0-rc7-next-20221129 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lapic_next_deadline+0x25/0x50 Code: 90 90 90 90 90 f3 0f 1e fa 0f ae f0 0f ae e8 0f 31 48 c1 e2 20 b9 e0 06 00 00 48 09 c2 48 8d 04 fa 48 89 c2 48 c1 ea 20 0f 30 <66> 90 31 c0 e9 56 0d 31 03 48 89 c6 31 d2 bf e0 06 00 00 e8 13 04 RSP: 0018:ffff88806cf09840 EFLAGS: 00000013 RAX: 00000240a2bb8d90 RBX: 0000000000000000 RCX: 00000000000006e0 RDX: 0000000000000240 RSI: ffff88806cf28100 RDI: 000000000000015d RBP: ffff88806cf28100 R08: 0000000000000007 R09: 0000000000000000 R10: 00000000000000c4 R11: 0000000000000001 R12: 000000000000015d R13: 0000000000000000 R14: 0000000000000000 R15: ffff88806cf2b840 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558a456dd628 CR3: 000000001c1a0000 CR4: 0000000000350ee0 Call Trace: clockevents_program_event+0x248/0x360 tick_program_event+0xb0/0x150 hrtimer_interrupt+0x36a/0x770 __sysvec_apic_timer_interrupt+0x148/0x500 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 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 ee 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: ffffffff8441135b RDX: fffffbfff0b48155 RSI: 0000000000000004 RDI: ffffffff85a40aa0 RBP: ffffffff85a40aa0 R08: 0000000000000000 R09: ffffffff85a40aa3 R10: fffffbfff0b48154 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b48154 R14: 0000000000000001 R15: 1ffff1100d9e1346 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:__mod_node_page_state+0x34/0x1a0 Code: 00 fc ff df 41 57 41 56 49 89 d6 41 55 41 54 49 89 fc 48 81 c7 00 38 00 00 55 48 89 fa 53 48 c1 ea 03 48 83 ec 08 80 3c 02 00 <0f> 85 4a 01 00 00 4d 8b bc 24 00 38 00 00 41 89 f5 83 ee 05 4b 8d RSP: 0018:ffff888031def690 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff888031def628 RDX: 1ffff1100fffbf00 RSI: 0000000000000012 RDI: ffff88807ffdf800 RBP: ffffea0000f4abc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88807ffdc000 R13: 0000000000000012 R14: ffffffffffffffff R15: ffff888031defad8 page_remove_rmap+0x232/0x620 unmap_page_range+0x1fdf/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x680 mmput+0xd5/0x390 do_exit+0x99b/0x2720 do_group_exit+0xd4/0x2a0 get_signal+0x21a5/0x22e0 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fd3c21b3b19 Code: Unable to access opcode bytes at 0x7fd3c21b3aef. RSP: 002b:00007fd3bf729188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: 0000000000000007 RBX: 00007fd3c22c6f60 RCX: 00007fd3c21b3b19 RDX: 00000000001010c2 RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 00007fd3c220df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd702d7f0f R14: 00007fd3bf729300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 6f outsl %ds:(%rsi),(%dx) 1: 08 00 or %al,(%rax) 3: 00 48 8d add %cl,-0x73(%rax) 6: bb 10 3e 00 00 mov $0x3e10,%ebx b: 4d 8b bd 10 3e 00 00 mov 0x3e10(%r13),%r15 12: 48 89 f8 mov %rdi,%rax 15: 48 c1 e8 03 shr $0x3,%rax 19: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) 1d: 0f 85 69 08 00 00 jne 0x88c 23: 4c 23 bb 10 3e 00 00 and 0x3e10(%rbx),%r15 * 2a: 31 ff xor %edi,%edi <-- trapping instruction 2c: 4c 89 fe mov %r15,%rsi 2f: e8 6e 7c 4c fe callq 0xfe4c7ca2 34: 4d 85 ff test %r15,%r15 37: 0f 84 80 fe ff ff je 0xfffffebd 3d: e8 .byte 0xe8 3e: 00 .byte 0x0 3f: 80 .byte 0x80