watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz-executor.3:28716] Modules linked in: irq event stamp: 12361145 hardirqs last enabled at (12361144): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 hardirqs last disabled at (12361145): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1100 softirqs last enabled at (6182402): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (6182402): [] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636 softirqs last disabled at (6182405): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (6182405): [] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636 CPU: 0 PID: 28716 Comm: syz-executor.3 Not tainted 5.14.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0x78f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1527 Code: bb ac 3c 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 36 09 00 00 44 0f b6 bb ac 3c 00 00 <31> ff 44 89 fe e8 57 dc 42 fc 45 84 ff 0f 84 77 ff ff ff e8 09 d6 RSP: 0018:ffffc90000007ba0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff88802f65b260 RCX: 0000000000000100 RDX: 0000000000000004 RSI: ffffffff8532c703 RDI: ffff88802f65ef0c RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000000 R10: ffffffff8532c739 R11: 0000000000000000 R12: ffff8880a7036640 R13: ffff8880693d3490 R14: ffff8880693d3260 R15: 0000000000000000 FS: 00007fdd42397700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000488f40 CR3: 00000000a7ee4000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: mac80211_hwsim_tx_frame+0x1ee/0x2a0 drivers/net/wireless/mac80211_hwsim.c:1784 mac80211_hwsim_beacon_tx+0x49b/0x930 drivers/net/wireless/mac80211_hwsim.c:1838 __iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829 mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:check_kcov_mode+0x2c/0x40 kernel/kcov.c:174 Code: 05 b9 5a 8c 7e 89 c2 81 e2 00 01 00 00 a9 00 01 ff 00 74 10 31 c0 85 d2 74 15 8b 96 34 15 00 00 85 d2 74 0b 8b 86 10 15 00 00 <39> f8 0f 94 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 31 c0 RSP: 0018:ffffc90002c7f1f8 EFLAGS: 00000246 RAX: 0000000000000002 RBX: ffff888144452fd0 RCX: 000000000000000b RDX: 0000000000000000 RSI: ffff88802cee9c40 RDI: 0000000000000003 RBP: 000000000000000b R08: 0000000000000000 R09: 000000000000000b R10: ffffffff82132b77 R11: 0000000000000000 R12: ffff88809e3b8820 R13: 000000000000000b R14: 0000000000007403 R15: 0000000000000000 write_comp_data kernel/kcov.c:218 [inline] __sanitizer_cov_trace_const_cmp4+0x1c/0x70 kernel/kcov.c:284 ext4_mb_good_group+0x2b7/0x510 fs/ext4/mballoc.c:2442 ext4_mb_regular_allocator+0xc98/0x3870 fs/ext4/mballoc.c:2746 ext4_mb_new_blocks+0x24d4/0x5230 fs/ext4/mballoc.c:5515 ext4_ext_map_blocks+0x1fa3/0x6070 fs/ext4/extents.c:4245 ext4_map_blocks+0x653/0x17d0 fs/ext4/inode.c:638 ext4_alloc_file_blocks.isra.0+0x2c1/0xae0 fs/ext4/extents.c:4432 ext4_fallocate+0x45e/0x3ff0 fs/ext4/extents.c:4712 vfs_fallocate+0x48d/0xd80 fs/open.c:311 ioctl_preallocate+0x18e/0x200 fs/ioctl.c:497 file_ioctl fs/ioctl.c:537 [inline] do_vfs_ioctl+0x1144/0x15d0 fs/ioctl.c:1048 __do_sys_ioctl fs/ioctl.c:1067 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x108/0x200 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 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:00007fdd42397188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000020000040 RSI: 000000004030582a RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffcf55e0a4f R14: 00007fdd42397300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 28715 Comm: syz-executor.1 Not tainted 5.14.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:asm_sysvec_apic_timer_interrupt+0x0/0x20 arch/x86/include/asm/idtentry.h:637 Code: 00 66 0f 1f 84 00 00 00 00 00 0f 1f 00 6a ff e8 76 03 00 00 48 89 e7 e8 9e e4 ec ff e9 29 04 00 00 66 0f 1f 84 00 00 00 00 00 <0f> 1f 00 6a ff e8 56 03 00 00 48 89 e7 e8 ee e2 ec ff e9 09 04 00 RSP: 0018:ffffc90002b1efb8 EFLAGS: 00000006 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffff11005114a58 RDX: 0000000000000001 RSI: ffffffff817bc081 RDI: ffffffff81331591 RBP: ffff8880288a52c0 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817bc049 R11: 0000000000000000 R12: 0000000000005e86 R13: ffffed1005114a58 R14: 0000000000000001 R15: ffff8880b9d527c0 FS: 00007fc57ac01700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000513230 CR3: 00000000a825f000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x3ba/0xb40 kernel/locking/qspinlock.c:508 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 72 04 00 00 41 0f b6 45 00 38 d8 7f 08 84 c0 0f pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x200/0x2b0 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:354 [inline] ext4_lock_group+0x1e5/0x240 fs/ext4/ext4.h:3456 ext4_mb_find_by_goal+0x2ca/0xd60 fs/ext4/mballoc.c:2215 ext4_mb_regular_allocator+0x237/0x3870 fs/ext4/mballoc.c:2636 ext4_mb_new_blocks+0x24d4/0x5230 fs/ext4/mballoc.c:5515 ext4_ext_map_blocks+0x1fa3/0x6070 fs/ext4/extents.c:4245 ext4_map_blocks+0x653/0x17d0 fs/ext4/inode.c:638 ext4_alloc_file_blocks.isra.0+0x2c1/0xae0 fs/ext4/extents.c:4432 ext4_fallocate+0x45e/0x3ff0 fs/ext4/extents.c:4712 vfs_fallocate+0x48d/0xd80 fs/open.c:311 ioctl_preallocate+0x18e/0x200 fs/ioctl.c:497 file_ioctl fs/ioctl.c:537 [inline] do_vfs_ioctl+0x1144/0x15d0 fs/ioctl.c:1048 __do_sys_ioctl fs/ioctl.c:1067 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x108/0x200 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 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:00007fc57ac01188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000020000040 RSI: 000000004030582a RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff4150c80f R14: 00007fc57ac01300 R15: 0000000000022000