watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor5:9432] Modules linked in: irq event stamp: 29742424 hardirqs last enabled at (29742423): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (29742423): [] _raw_spin_unlock_irq+0x27/0x70 kernel/locking/spinlock.c:192 hardirqs last disabled at (29742424): [] interrupt_entry+0xb5/0xf0 arch/x86/entry/entry_64.S:625 softirqs last enabled at (968902): [] __do_softirq+0x778/0xaf5 kernel/softirq.c:311 softirqs last disabled at (968733): [] invoke_softirq kernel/softirq.c:365 [inline] softirqs last disabled at (968733): [] irq_exit+0x1d1/0x200 kernel/softirq.c:405 CPU: 1 PID: 9432 Comm: syz-executor5 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:ffff8801beb47930 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff10037d68f2b RCX: 1ffff10030f3219d RDX: 1ffffffff11a30e5 RSI: 0000000000000001 RDI: 0000000000000286 RBP: ffff8801beb47a60 R08: 1ffff10037d68f2f R09: ffff8801beb477b8 R10: 0000000000000003 R11: 0000000000000000 R12: ffff8801879904c0 R13: ffff88018c14ed88 R14: ffff8801879904c0 R15: ffff8801beb47978 FS: 00007f70b491d700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f70b48fbdb8 CR3: 0000000187f10000 CR4: 00000000001426e0 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 do_loop_readv_writev fs/read_write.c:703 [inline] do_iter_write+0x491/0x5f0 fs/read_write.c:961 vfs_writev+0x1c7/0x330 fs/read_write.c:1004 do_writev+0x112/0x2f0 fs/read_write.c:1039 __do_sys_writev fs/read_write.c:1112 [inline] __se_sys_writev fs/read_write.c:1109 [inline] __x64_sys_writev+0x75/0xb0 fs/read_write.c:1109 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007f70b491cc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f70b491d6d4 RCX: 0000000000455a09 RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000014 RBP: 000000000072bf50 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000792 R14: 00000000006ff650 R15: 0000000000000001 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 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 9393 Comm: syz-executor5 Not tainted 4.17.0-rc5+ #57 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rol32 include/linux/bitops.h:102 [inline] RIP: 0010:iterate_chain_key kernel/locking/lockdep.c:320 [inline] RIP: 0010:__lock_acquire+0x99b/0x5140 kernel/locking/lockdep.c:3426 RSP: 0018:ffff8801b3ed75b0 EFLAGS: 00000012 RAX: 0000000068940276 RBX: 00000000696666bf RCX: 00000000ff2d9bb7 RDX: 0000000035fb4b33 RSI: ffff8801d3d20df8 RDI: ffffffff8a2745a0 RBP: ffff8801b3ed7938 R08: 0000000000000008 R09: 0000000000000000 R10: ffff8801d3d20df8 R11: ffff8801d3d205c0 R12: 000000009698cb41 R13: 0000000000000003 R14: 0000000000000005 R15: 0000000000000001 FS: 00007f70b493e700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020e00000 CR3: 0000000187f10000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 __might_fault+0x155/0x1e0 mm/memory.c:4555 mousedev_write+0x1cb/0x840 drivers/input/mousedev.c:686 do_loop_readv_writev fs/read_write.c:703 [inline] do_iter_write+0x491/0x5f0 fs/read_write.c:961 vfs_writev+0x1c7/0x330 fs/read_write.c:1004 do_writev+0x112/0x2f0 fs/read_write.c:1039 __do_sys_writev fs/read_write.c:1112 [inline] __se_sys_writev fs/read_write.c:1109 [inline] __x64_sys_writev+0x75/0xb0 fs/read_write.c:1109 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007f70b493dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f70b493e6d4 RCX: 0000000000455a09 RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000792 R14: 00000000006ff650 R15: 0000000000000000 Code: 06 41 31 c4 44 89 e0 44 29 e2 41 01 dc c1 c0 08 31 c2 89 d0 29 d3 c1 c0 10 31 c3 42 8d 04 22 89 da 41 29 dc 89 c1 01 d8 c1 ca 0d <41> 31 d4 44 89 e2 44 29 e1 44 01 e0 c1 c2 04 31 ca 48 c1 e2 20