ceph: device name is missing path (no : separator in ./file0)
watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor3:4534]
Modules linked in:
irq event stamp: 16564578
hardirqs last  enabled at (16564577): [<ffffffff81c6992f>] seqcount_lockdep_reader_access include/linux/seqlock.h:83 [inline]
hardirqs last  enabled at (16564577): [<ffffffff81c6992f>] read_seqcount_begin include/linux/seqlock.h:164 [inline]
hardirqs last  enabled at (16564577): [<ffffffff81c6992f>] read_seqbegin include/linux/seqlock.h:433 [inline]
hardirqs last  enabled at (16564577): [<ffffffff81c6992f>] read_seqbegin_or_lock include/linux/seqlock.h:529 [inline]
hardirqs last  enabled at (16564577): [<ffffffff81c6992f>] d_walk+0x80f/0xc80 fs/dcache.c:1248
hardirqs last disabled at (16564578): [<ffffffff87800905>] interrupt_entry+0xb5/0xf0 arch/x86/entry/entry_64.S:625
softirqs last  enabled at (5740664): [<ffffffff87a00778>] __do_softirq+0x778/0xaf5 kernel/softirq.c:311
softirqs last disabled at (5740587): [<ffffffff81475241>] invoke_softirq kernel/softirq.c:365 [inline]
softirqs last disabled at (5740587): [<ffffffff81475241>] irq_exit+0x1d1/0x200 kernel/softirq.c:405
CPU: 0 PID: 4534 Comm: syz-executor3 Not tainted 4.17.0-rc4+ #14
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__x86_indirect_thunk_rax+0x10/0x20 arch/x86/lib/retpoline.S:32
RSP: 0018:ffff8801a42d79e8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: ffffffff81c5f080 RBX: ffff8801ce3762c0 RCX: ffffffff815e0571
RDX: 1ffff10039c6ec6a RSI: ffff8801ce3762c0 RDI: ffff8801a42d7c10
RBP: ffff8801a42d7b78 R08: ffffed0039c6ec69 R09: ffffed0039c6ec68
R10: ffffed0039c6ec68 R11: ffff8801ce376343 R12: 0000000000009906
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8801a42d7b50
FS:  0000000001722940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000172b978 CR3: 00000001a4113000 CR4: 00000000001406f0
DR0: 00000000200001c0 DR1: 00000000200001c0 DR2: 00000000200001c0
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 shrink_dcache_parent+0x179/0x230 fs/dcache.c:1486
 vfs_rmdir+0x202/0x470 fs/namei.c:3850
 do_rmdir+0x523/0x610 fs/namei.c:3911
 __do_sys_rmdir fs/namei.c:3929 [inline]
 __se_sys_rmdir fs/namei.c:3927 [inline]
 __x64_sys_rmdir+0x36/0x40 fs/namei.c:3927
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455777
RSP: 002b:00007ffd9dfbfbd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 0000000000455777
RDX: 0000000000000000 RSI: 00007ffd9dfc1980 RDI: 00007ffd9dfc1980
RBP: 00007ffd9dfc1980 R08: 0000000000000000 R09: 0000000000000001
R10: 000000000000000a R11: 0000000000000206 R12: 0000000001723940
R13: 0000000000000000 R14: 0000000000000c2e R15: 000000000007a1df
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 04 24 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4533 Comm: syz-executor1 Not tainted 4.17.0-rc4+ #14
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sanitizer_cov_trace_switch+0x4/0x90 kernel/kcov.c:201
RSP: 0018:ffff8801a5cdf9e8 EFLAGS: 00000296
RAX: 0000000000000000 RBX: ffff8801b5ed3970 RCX: ffffffff81c5f164
RDX: 0000000000000000 RSI: ffffffff87d34500 RDI: 0000000000000000
RBP: ffff8801a5cdf9e8 R08: ffff8801a5cd4280 R09: ffffed0036bda720
R10: ffffed0036bda720 R11: ffff8801b5ed3903 R12: ffff8801b5ed3880
R13: dffffc0000000000 R14: ffff8801b5ed3900 R15: ffff8801a5cdfb50
FS:  0000000000fad940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000607304 CR3: 00000001a5c19000 CR4: 00000000001406e0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 d_walk+0x3d7/0xc80 fs/dcache.c:1277
 shrink_dcache_parent+0x179/0x230 fs/dcache.c:1486
 vfs_rmdir+0x202/0x470 fs/namei.c:3850
 do_rmdir+0x523/0x610 fs/namei.c:3911
 __do_sys_rmdir fs/namei.c:3929 [inline]
 __se_sys_rmdir fs/namei.c:3927 [inline]
 __x64_sys_rmdir+0x36/0x40 fs/namei.c:3927
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455777
RSP: 002b:00007fff7f4ef9c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 0000000000455777
RDX: 0000000000000000 RSI: 00007fff7f4f1770 RDI: 00007fff7f4f1770
RBP: 00007fff7f4f1770 R08: 0000000000000000 R09: 0000000000000001
R10: 000000000000000a R11: 0000000000000202 R12: 0000000000fae940
R13: 0000000000000000 R14: 0000000000000c4a R15: 000000000007a250
Code: 1f 84 00 00 00 00 00 55 48 89 f2 48 89 fe bf 07 00 00 00 48 89 e5 48 8b 4d 08 e8 48 fe ff ff 5d c3 66 0f 1f 44 00 00 55 48 89 e5 <41> 57 41 56 41 55 41 54 53 48 8b 46 08 48 83 f8 10 74 6b 76 4a