watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor1:9361] Modules linked in: irq event stamp: 28473204 hardirqs last enabled at (28473203): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (28473203): [] _raw_spin_unlock_irq+0x27/0x70 kernel/locking/spinlock.c:192 hardirqs last disabled at (28473204): [] interrupt_entry+0xb5/0xf0 arch/x86/entry/entry_64.S:625 softirqs last enabled at (1102258): [] __do_softirq+0x778/0xaf5 kernel/softirq.c:311 softirqs last disabled at (1102211): [] invoke_softirq kernel/softirq.c:365 [inline] softirqs last disabled at (1102211): [] irq_exit+0x1d1/0x200 kernel/softirq.c:405 CPU: 0 PID: 9361 Comm: syz-executor1 Not tainted 4.17.0-rc5+ #57 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:783 [inline] RIP: 0010:lock_release+0x4d4/0xa10 kernel/locking/lockdep.c:3942 RSP: 0018:ffff8801818bf9a8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff10030317f3a RCX: 1ffff10030b5b9e5 RDX: 1ffffffff11a30e5 RSI: 0000000000000001 RDI: 0000000000000286 RBP: ffff8801818bfad8 R08: 1ffff10030317f3e R09: ffff8801818bf830 R10: 0000000000000003 R11: 0000000000000000 R12: ffff880185adc700 R13: ffff8801bb1a6108 R14: ffff880185adc700 R15: ffff8801818bf9f0 FS: 00007f8a1a4fb700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8a1a4fadb8 CR3: 00000001c1bd8000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __might_fault+0x19e/0x1e0 mm/memory.c:4555 mousedev_write+0x1cb/0x840 drivers/input/mousedev.c:686 __vfs_write+0x10b/0x960 fs/read_write.c:485 vfs_write+0x1f8/0x560 fs/read_write.c:549 ksys_write+0xf9/0x250 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007f8a1a4fac68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f8a1a4fb6d4 RCX: 0000000000455a09 RDX: 00000000fffffe61 RSI: 0000000020000540 RDI: 0000000000000016 RBP: 000000000072c160 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000077e R14: 00000000006ff470 R15: 0000000000000004 Code: 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 a3 03 00 00 48 83 3d 13 80 74 07 00 0f 84 b8 02 00 00 48 8b bd e8 fe ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 9355 Comm: syz-executor1 Not tainted 4.17.0-rc5+ #57 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:lock_is_held_type+0x16/0x210 kernel/locking/lockdep.c:3947 RSP: 0018:ffff8801b7d1f9f0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 1ffff10036fa3f43 RCX: ffffc900076f8000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff88d8dee0 RBP: ffff8801b7d1fa08 R08: ffff8801b344c240 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff88d8dee0 R14: 00000000000002ae R15: 000000007ffff000 FS: 00007f8a1a55e700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 00000001c1bd8000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_is_held include/linux/lockdep.h:344 [inline] ___might_sleep+0x283/0x320 kernel/sched/core.c:6149 __might_sleep+0x95/0x190 kernel/sched/core.c:6137 __might_fault+0xc6/0x1e0 mm/memory.c:4552 mousedev_write+0x1cb/0x840 drivers/input/mousedev.c:686 __vfs_write+0x10b/0x960 fs/read_write.c:485 vfs_write+0x1f8/0x560 fs/read_write.c:549 ksys_write+0xf9/0x250 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007f8a1a55dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f8a1a55e6d4 RCX: 0000000000455a09 RDX: 00000000fffffe61 RSI: 0000000020000540 RDI: 0000000000000013 RBP: 000000000072bf50 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000077e R14: 00000000006ff470 R15: 0000000000000001 Code: 00 e9 63 ff ff ff e8 ca 81 59 00 eb ad 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 55 49 89 fd 41 54 53 <65> 48 8b 1c 25 c0 ed 01 00 48 8d bb 34 08 00 00 48 89 fa 48 83