watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.0:26074] Modules linked in: irq event stamp: 3235336 hardirqs last enabled at (3235335): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3235336): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (91780): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (87617): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (87617): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 26074 Comm: syz-executor.0 Not tainted 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:435 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x3a6/0xae0 kernel/locking/qspinlock.c:474 Code: eb c6 45 01 01 41 bc 00 80 00 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c f3 90 <41> 83 ec 01 0f 84 38 04 00 00 41 0f b6 45 00 38 d8 7f 08 84 c0 0f RSP: 0018:ffff888056cdf3c0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffffffff140318c RDX: 0000000000000001 RSI: ffffffff8167a465 RDI: 0000000000000286 RBP: ffffffff8a018c60 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000007f23 R13: fffffbfff140318c R14: 0000000000000001 R15: ffff8880ba12bd80 FS: 00007fc30db03700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffef3fdfd40 CR3: 000000005a1ff000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:679 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:53 [inline] queued_spin_lock include/asm-generic/qspinlock.h:88 [inline] do_raw_spin_lock+0x189/0x220 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:329 [inline] s_start+0x15/0x50 mm/vmalloc.c:2665 seq_read+0x2a0/0x1160 fs/seq_file.c:224 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x471/0x630 fs/read_write.c:925 vfs_readv+0xe5/0x150 fs/read_write.c:987 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x457/0xa00 fs/splice.c:417 do_splice_to+0x10e/0x160 fs/splice.c:881 splice_direct_to_actor+0x2b9/0x8d0 fs/splice.c:959 do_splice_direct+0x1a7/0x270 fs/splice.c:1068 do_sendfile+0x550/0xc30 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665d9 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:00007fc30db03188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 4000000000010046 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffd41bd25cf R14: 00007fc30db03300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 26080 Comm: syz-executor.3 Not tainted 4.19.197-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 1c ea 3c 0b 01 7f 02 5d c3 89 ef 5d e9 90 36 c9 06 48 c7 c7 00 67 65 8c e8 74 d1 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:ffff8880ba007728 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: ffffffff89cf91a0 RCX: 0000000000000020 RDX: 1ffffffff139f236 RSI: 00000000000000da RDI: 0000000000000380 RBP: ffff8880ba01e280 R08: ffffffff8c662018 R09: 0000000000000000 R10: 0000000000000007 R11: ffffffff8c66201b R12: 00000000000000da R13: 0000000000000000 R14: ffff8880ba024c80 R15: ffff8880ba024cf0 FS: 00007f28c98fa700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff7bf15c20 CR3: 000000009f52c000 CR4: 00000000001406f0 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:1552 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:ieee80211_rx_h_check_more_data net/mac80211/rx.c:1462 [inline] RIP: 0010:ieee80211_rx_handlers+0x22b/0x96c0 net/mac80211/rx.c:3673 Code: 03 80 3c 28 00 0f 85 8d 47 00 00 49 8d bd 34 15 00 00 4c 8b a3 d8 00 00 00 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 0f b6 04 28 <38> d0 7f 08 84 c0 0f 85 58 47 00 00 45 0f b6 b5 34 15 00 00 31 ff RSP: 0018:ffff8880ba007948 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff888061ddec80 RCX: ffff8880ba007c38 RDX: 0000000000000004 RSI: ffffffff879f2238 RDI: ffff88805ff32dd4 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100bfe63eb R10: ffff88805ff31f5b R11: 0000000000000000 R12: ffff888061ddd590 R13: ffff88805ff318a0 R14: ffff8880ba007dd8 R15: ffff8880ba007dd8 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3726 [inline] ieee80211_prepare_and_rx_handle+0x23ed/0x6780 net/mac80211/rx.c:4423 __ieee80211_rx_handle_packet net/mac80211/rx.c:4483 [inline] ieee80211_rx_napi+0x108d/0x2470 net/mac80211/rx.c:4672 ieee80211_rx include/net/mac80211.h:4109 [inline] ieee80211_tasklet_handler+0x101/0x160 net/mac80211/main.c:229 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:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:100 Code: e8 31 cf 35 00 e9 ab fe ff ff 4c 89 ef e8 24 cf 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 <65> 48 8b 04 25 80 df 01 00 65 8b 15 0c 5f 9f 7e 81 e2 00 01 1f 00 RSP: 0018:ffff8880569bf170 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffffffff87ef3903 RDX: 0000000000000000 RSI: ffffffff87ef3932 RDI: 0000000000000001 RBP: 000000000000000a R08: 000000000000000f R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88809e10d145 R13: ffffffff8872ddc4 R14: ffff88809e10d600 R15: ffff88809e10d145 number+0x122/0xa90 lib/vsprintf.c:421 vsnprintf+0xf07/0x14f0 lib/vsprintf.c:2359 seq_vprintf fs/seq_file.c:391 [inline] seq_printf+0x195/0x240 fs/seq_file.c:406 show_numa_info mm/vmalloc.c:2700 [inline] s_show mm/vmalloc.c:2753 [inline] s_show+0x705/0x840 mm/vmalloc.c:2704 seq_read+0xbcd/0x1160 fs/seq_file.c:268 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x471/0x630 fs/read_write.c:925 vfs_readv+0xe5/0x150 fs/read_write.c:987 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x457/0xa00 fs/splice.c:417 do_splice_to+0x10e/0x160 fs/splice.c:881 splice_direct_to_actor+0x2b9/0x8d0 fs/splice.c:959 do_splice_direct+0x1a7/0x270 fs/splice.c:1068 do_sendfile+0x550/0xc30 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665d9 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:00007f28c98fa188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 4000000000010046 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff425f2f4f R14: 00007f28c98fa300 R15: 0000000000022000