F2FS-fs (loop2): Unable to read 2th superblock watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.3:6541] Modules linked in: irq event stamp: 4377341 hardirqs last enabled at (4377340): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (4377341): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (2915934): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (2915937): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2915937): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 6541 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:lock_acquire+0x1f1/0x3c0 kernel/locking/lockdep.c:3912 Code: 00 00 48 c1 e8 03 80 3c 10 00 0f 85 b7 01 00 00 48 83 3d 09 2e a6 08 00 0f 84 2a 01 00 00 48 8b 7c 24 08 57 9d 0f 1f 44 00 00 <48> 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 65 8b 05 89 2c b6 7e RSP: 0018:ffff8880ba007c50 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: ffff8880598aa3c0 RCX: 00000000000020a1 RDX: dffffc0000000000 RSI: 00000000efbb0d6b RDI: 0000000000000286 RBP: ffff88808fb76a00 R08: ffffffff8cd27a48 R09: 0000000000000007 R10: ffff8880598aad60 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 00007f16428cb700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005598f82e48c8 CR3: 00000000978b3000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] pie_timer+0x92/0x740 net/sched/sch_pie.c:433 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:__schedule+0x5a/0x2040 kernel/sched/core.c:3428 Code: ec a0 00 00 00 48 89 85 50 ff ff ff 4c 01 f0 48 c7 85 78 ff ff ff b3 8a b5 41 48 c7 45 80 8a 17 b7 89 48 c7 45 88 50 3b 18 88 00 f1 f1 f1 f1 c7 40 04 00 00 f3 f3 65 48 8b 04 25 28 00 00 00 RSP: 0018:ffff88804a8ef648 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: ffffed100951ded1 RBX: 0000000000000001 RCX: 1ffff1100b3155a1 RDX: 0000000000000000 RSI: ffff8880598aad10 RDI: 0000000000000001 RBP: ffff88804a8ef710 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880598aa3c0 R13: 000000000002b0c0 R14: dffffc0000000000 R15: 000000000002b0c0 preempt_schedule_irq+0xb0/0x140 kernel/sched/core.c:3744 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:lock_acquire+0x1ec/0x3c0 kernel/locking/lockdep.c:3911 Code: 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 b7 01 00 00 48 83 3d 09 2e a6 08 00 0f 84 2a 01 00 00 48 8b 7c 24 08 57 9d <0f> 1f 44 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 65 8b RSP: 0018:ffff88804a8ef7f0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: ffff8880598aa3c0 RCX: e975850bc4473c11 RDX: dffffc0000000000 RSI: 0000000061548916 RDI: 0000000000000286 RBP: ffffffff89f85fa0 R08: 00000000ebc52b50 R09: 0000000000000005 R10: ffff8880598aad10 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:242 [inline] rcu_read_lock include/linux/rcupdate.h:627 [inline] __atomic_notifier_call_chain+0x48/0x180 kernel/notifier.c:182 do_con_write+0x48c/0x1d90 drivers/tty/vt/vt.c:2715 con_write+0x22/0xb0 drivers/tty/vt/vt.c:3163 process_output_block drivers/tty/n_tty.c:593 [inline] n_tty_write+0x3c0/0xff0 drivers/tty/n_tty.c:2331 do_tty_write drivers/tty/tty_io.c:960 [inline] tty_write+0x496/0x810 drivers/tty/tty_io.c:1044 do_loop_readv_writev fs/read_write.c:704 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_write+0x461/0x5d0 fs/read_write.c:962 vfs_writev+0x153/0x2e0 fs/read_write.c:1005 do_writev+0x136/0x330 fs/read_write.c:1040 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f1643f56109 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f16428cb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f1644068f60 RCX: 00007f1643f56109 RDX: 0000000000000001 RSI: 0000000020000080 RDI: 0000000000000006 RBP: 00007f1643fb005d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdec8658cf R14: 00007f16428cb300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 6562 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:native_apic_mem_write+0x8/0x10 arch/x86/include/asm/apic.h:109 Code: 3d cc 17 3d 0b 01 7f 02 5d c3 89 ef 5d e9 f5 fe c9 06 48 c7 c7 00 97 65 8c e8 84 e2 6f 00 eb df 66 90 89 ff 89 b7 00 c0 5f ff 0f 1f 80 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 89 fb 48 RSP: 0018:ffff8880ba107518 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: ffffffff89cfb1a0 RCX: 0000000000000020 RDX: 1ffffffff139f636 RSI: 000000000000003e RDI: 0000000000000380 RBP: ffff8880ba11e2c0 R08: ffffffff8c665058 R09: 0000000000000000 R10: 0000000000000007 R11: ffffffff8c66505b R12: 000000000000003e R13: 0000000000000000 R14: ffff8880ba124cc0 R15: ffff8880ba124d30 FS: 00007fece0555700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555732848 CR3: 00000000b47e7000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apic_write arch/x86/include/asm/apic.h:389 [inline] lapic_next_event+0x4d/0x80 arch/x86/kernel/apic/apic.c:460 clockevents_program_event+0x234/0x350 kernel/time/clockevents.c:344 tick_program_event+0xac/0x140 kernel/time/tick-oneshot.c:48 hrtimer_interrupt+0x40a/0x9e0 kernel/time/hrtimer.c:1598 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline] smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:unwind_next_frame+0x7af/0x1400 arch/x86/kernel/unwind_orc.c:437 Code: 14 17 4c 89 ff 83 e7 07 40 38 fe 40 0f 9e c7 40 84 f6 40 0f 95 c6 40 84 f7 0f 85 59 09 00 00 83 e0 07 38 c2 40 0f 9e c6 84 d2 <0f> 95 c0 40 84 c6 0f 85 42 09 00 00 49 0f bf 07 48 01 c8 48 89 44 RSP: 0018:ffff8880ba107730 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000007 RBX: 1ffff11017420eef RCX: ffff888048ccfd18 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: 0000000000000001 R08: ffffffff8b8f764a R09: ffffffff8b8f761c R10: ffff8880ba1078bf R11: 0000000000074071 R12: ffff8880ba1078a8 R13: ffff8880ba107895 R14: ffff8880ba107860 R15: ffffffff8b8f7646 __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc_node mm/slab.c:3340 [inline] kmem_cache_alloc_node_trace+0x13c/0x3b0 mm/slab.c:3666 __do_kmalloc_node mm/slab.c:3688 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3703 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0xae/0x560 net/core/skbuff.c:205 skb_copy+0x139/0x2f0 net/core/skbuff.c:1358 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb8a/0x1330 drivers/net/wireless/mac80211_hwsim.c:1353 mac80211_hwsim_tx_frame+0x12b/0x210 drivers/net/wireless/mac80211_hwsim.c:1556 mac80211_hwsim_beacon_tx+0x3f8/0x680 drivers/net/wireless/mac80211_hwsim.c:1595 __iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650 mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615 __tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:arch_atomic_add_negative arch/x86/include/asm/atomic.h:154 [inline] RIP: 0010:atomic_add_negative include/asm-generic/atomic-instrumented.h:398 [inline] RIP: 0010:page_remove_file_rmap+0x99/0xa30 mm/rmap.c:1232 Code: c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f e9 e0 14 0f 00 e8 3b d4 d2 ff 49 8d 7e 30 be 04 00 00 00 e8 ad 9d 08 00 f0 41 83 46 30 ff <0f> 98 c3 31 ff 89 de e8 4b d5 d2 ff 84 db 74 bc 41 bd ff ff ff ff RSP: 0018:ffff888048ccf700 EFLAGS: 00000213 ORIG_RAX: ffffffffffffff13 RAX: fffff940004b4fff RBX: 0000000000000000 RCX: ffffffff818fb143 RDX: fffff940004b4fff RSI: 0000000000000004 RDI: ffffea00025a7ff0 RBP: ffffea00025a7fc0 R08: 0000000000000001 R09: fffff940004b4ffe R10: ffffea00025a7ff3 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffea00025a7fc0 R15: 00007fece10be000 page_remove_rmap+0xe5/0x120 mm/rmap.c:1297 zap_pte_range mm/memory.c:1350 [inline] zap_pmd_range mm/memory.c:1463 [inline] zap_pud_range mm/memory.c:1492 [inline] zap_p4d_range mm/memory.c:1513 [inline] unmap_page_range+0x147d/0x2c50 mm/memory.c:1534 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1016 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1037 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fece1c43109 Code: Bad RIP value. RSP: 002b:00007fece0555218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fece1d561d8 RCX: 00007fece1c43109 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fece1d561d8 RBP: 00007fece1d561d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fece1d561dc R13: 00007ffea75adc2f R14: 00007fece0555300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 48 c1 e8 03 shr $0x3,%rax 6: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) a: 0f 85 b7 01 00 00 jne 0x1c7 10: 48 83 3d 09 2e a6 08 cmpq $0x0,0x8a62e09(%rip) # 0x8a62e21 17: 00 18: 0f 84 2a 01 00 00 je 0x148 1e: 48 8b 7c 24 08 mov 0x8(%rsp),%rdi 23: 57 push %rdi 24: 9d popfq 25: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) * 2a: 48 83 c4 18 add $0x18,%rsp <-- trapping instruction 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: 41 5d pop %r13 34: 41 5e pop %r14 36: 41 5f pop %r15 38: c3 retq 39: 65 8b 05 89 2c b6 7e mov %gs:0x7eb62c89(%rip),%eax # 0x7eb62cc9