loop0: detected capacity change from 0 to 32768
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
gfs2: fsid=syz:syz.s: journal 0 mapped with 18 extents in 0ms
gfs2: fsid=syz:syz.s: first mount done, others may mount
gfs2: fsid=syz:syz.s: gfs2_check_dirent: gfs2_dirent too small (not first in block)
gfs2: fsid=syz:syz.s: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
gfs2: fsid=syz:syz.s: G:  s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
gfs2: fsid=syz:syz.s:  H: s:SH f:H e:0 p:5323 [syz.0.0] __gfs2_lookup+0x8f/0x270 fs/gfs2/inode.c:975
gfs2: fsid=syz:syz.s:  I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
gfs2: fsid=syz:syz.s: about to withdraw this file system
gfs2: fsid=syz:syz.s: Journal recovery skipped for jid 0 until next mount.
gfs2: fsid=syz:syz.s: Glock dequeues delayed: 0
gfs2: fsid=syz:syz.s: File system withdrawn
CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 gfs2_withdraw+0xb30/0x1430 fs/gfs2/util.c:345
 gfs2_dirent_scan+0x545/0x690 fs/gfs2/dir.c:-1
 gfs2_dirent_search+0x2cb/0x710 fs/gfs2/dir.c:854
 gfs2_dir_search+0x4c/0x220 fs/gfs2/dir.c:1651
 gfs2_lookupi+0x3d9/0x5a0 fs/gfs2/inode.c:340
 __gfs2_lookup+0x8f/0x270 fs/gfs2/inode.c:975
 __lookup_slow+0x297/0x3d0 fs/namei.c:1816
 lookup_slow+0x53/0x70 fs/namei.c:1833
 walk_component+0x2d2/0x400 fs/namei.c:2151
 lookup_last fs/namei.c:2652 [inline]
 path_lookupat+0x163/0x430 fs/namei.c:2676
 filename_lookup+0x212/0x570 fs/namei.c:2705
 kern_path+0x35/0x50 fs/namei.c:2863
 unix_find_bsd net/unix/af_unix.c:1236 [inline]
 unix_find_other+0x183/0xb40 net/unix/af_unix.c:1298
 unix_dgram_sendmsg+0x76e/0x18d0 net/unix/af_unix.c:2174
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:742
 ____sys_sendmsg+0x52d/0x830 net/socket.c:2630
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2684
 __sys_sendmmsg+0x227/0x430 net/socket.c:2773
 __do_sys_sendmmsg net/socket.c:2800 [inline]
 __se_sys_sendmmsg net/socket.c:2797 [inline]
 __x64_sys_sendmmsg+0xa0/0xc0 net/socket.c:2797
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9953f8f6c9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9954eaa038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f99541e5fa0 RCX: 00007f9953f8f6c9
RDX: 0000000000000002 RSI: 0000200000005a40 RDI: 0000000000000005
RBP: 00007f9954011f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f99541e6038 R14: 00007f99541e5fa0 R15: 00007ffc2704cfe8
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5323 at arch/x86/kvm/../../../virt/kvm/pfncache.c:267 __kvm_gpc_refresh+0x1187/0x1310 virt/kvm/pfncache.c:267
Modules linked in:
CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__kvm_gpc_refresh+0x1187/0x1310 virt/kvm/pfncache.c:267
Code: c6 05 24 3f 27 0e 01 48 c7 c7 bb d2 6f 8d be 35 04 00 00 48 c7 c2 40 ea 61 8b e8 04 df 5d 00 e9 fe f1 ff ff e8 da 75 80 00 90 <0f> 0b 90 bb ea ff ff ff e9 7e fe ff ff e8 c7 75 80 00 90 0f 0b 90
RSP: 0018:ffffc9000d57f360 EFLAGS: 00010287
RAX: ffffffff813fad96 RBX: ffff888000000000 RCX: 0000000000100000
RDX: ffffc9000dea2000 RSI: 0000000000000721 RDI: 0000000000000722
RBP: ffffc9000d57f4e8 R08: ffffffff8f7d0377 R09: 1ffffffff1efa06e
R10: dffffc0000000000 R11: fffffbfff1efa06f R12: ffff888033ad53e0
R13: dffffc0000000000 R14: ffff888000000000 R15: ffffffffffffff01
FS:  00007f9954eaa6c0(0000) GS:ffff88808d730000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9947effe00 CR3: 00000000428ac000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 kvm_gpc_refresh+0xe1/0x140 virt/kvm/pfncache.c:382
 kvm_xen_set_evtchn+0x164/0x230 arch/x86/kvm/xen.c:1943
 kvm_xen_inject_timer_irqs+0xfd/0x200 arch/x86/kvm/xen.c:118
 vcpu_run+0xc2c/0x7040 arch/x86/kvm/x86.c:11625
 kvm_arch_vcpu_ioctl_run+0xfc9/0x1940 arch/x86/kvm/x86.c:11951
 kvm_vcpu_ioctl+0x95c/0xe90 virt/kvm/kvm_main.c:4476
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9953f8f6c9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9954eaa038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f99541e5fa0 RCX: 00007f9953f8f6c9
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 000000000000000e
RBP: 00007f9954011f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f99541e6038 R14: 00007f99541e5fa0 R15: 00007ffc2704cfe8
 </TASK>