| TITLE: BUG: soft lockup in sys_rmdir |
| TYPE: HANG |
| |
| [ 1144.580971] watchdog: BUG: soft lockup - CPU#1 stuck for 134s! [syz-executor0:4569] |
| [ 1144.589091] Modules linked in: |
| [ 1144.592335] irq event stamp: 78766212 |
| [ 1144.596241] hardirqs last enabled at (78766211): [<ffffffff81c7152f>] d_walk+0x80f/0xc80 |
| [ 1144.604582] hardirqs last disabled at (78766212): [<ffffffff87800905>] interrupt_entry+0xb5/0xf0 |
| [ 1144.613524] softirqs last enabled at (13779542): [<ffffffff87a00778>] __do_softirq+0x778/0xaf5 |
| [ 1144.622392] softirqs last disabled at (13779283): [<ffffffff81474901>] irq_exit+0x1d1/0x200 |
| [ 1144.630891] CPU: 1 PID: 4569 Comm: syz-executor0 Not tainted 4.17.0-rc7+ #38 |
| [ 1144.639205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 1144.648575] RIP: 0010:check_memory_region+0xc3/0x1b0 |
| [ 1144.653694] RSP: 0018:ffff8801a14cf930 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 |
| [ 1144.661412] RAX: ffffed0033825dd1 RBX: ffff88019c12ee80 RCX: ffffffff815e0b5e |
| [ 1144.668708] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88019c12ee80 |
| [ 1144.676008] RBP: ffff8801a14cf938 R08: ffffed0033825dd1 R09: ffffed0033825dd0 |
| [ 1144.683284] R10: ffffed0033825dd0 R11: ffff88019c12ee83 R12: 1ffff10034299f29 |
| [ 1144.690568] R13: dffffc0000000000 R14: ffff8801a14cf9a8 R15: ffff8801a14cfb50 |
| [ 1144.697845] FS: 0000000000bbe940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 |
| [ 1144.706087] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 |
| [ 1144.711970] CR2: 0000000000930008 CR3: 00000001a1b76000 CR4: 00000000001406e0 |
| [ 1144.719244] DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 |
| [ 1144.726528] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 |
| [ 1144.733967] Call Trace: |
| [ 1144.740725] do_raw_spin_unlock+0x9e/0x2e0 |
| [ 1144.758045] _raw_spin_unlock+0x22/0x30 |
| [ 1144.762022] d_walk+0x451/0xc80 |
| [ 1144.792735] shrink_dcache_parent+0x179/0x230 |
| [ 1144.823077] vfs_rmdir+0x202/0x470 |
| [ 1144.826642] do_rmdir+0x523/0x610 |
| [ 1144.853253] __x64_sys_rmdir+0x36/0x40 |
| [ 1144.857239] do_syscall_64+0x1b1/0x800 |
| [ 1144.886120] entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 1144.891437] RIP: 0033:0x455897 |
| [ 1144.894624] RSP: 002b:00007ffc25471ad8 EFLAGS: 00000206 ORIG_RAX: 0000000000000054 |
| [ 1144.902336] RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 0000000000455897 |
| [ 1144.909605] RDX: 0000000000000000 RSI: 00007ffc25473880 RDI: 00007ffc25473880 |
| [ 1144.916875] RBP: 00007ffc25473880 R08: 0000000000000000 R09: 0000000000000001 |
| [ 1144.924148] R10: 000000000000000a R11: 0000000000000206 R12: 0000000000bbf940 |
| [ 1144.931450] R13: 0000000000000000 R14: 00000000000013f1 R15: 00000000000ef6b8 |
