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.0: journal 0 mapped with 9 extents in 0ms
gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
error
WARNING: fs/gfs2/rgrp.c:2628 at gfs2_check_blk_type+0x420/0x670 fs/gfs2/rgrp.c:2628, CPU#0: syz.0.0/5324
Modules linked in:
CPU: 0 UID: 0 PID: 5324 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 04/01/2014
RIP: 0010:gfs2_check_blk_type+0x420/0x670 fs/gfs2/rgrp.c:2628
Code: 04 28 84 c0 0f 85 fa 01 00 00 8b 1b 89 df 44 89 e6 e8 64 45 ac fd 44 39 e3 76 26 e8 9a 43 ac fd 31 db eb 74 e8 91 43 ac fd 90 <0f> 0b 90 bb f9 ff ff ff 49 bd 00 00 00 00 00 fc ff df e9 10 01 00
RSP: 0018:ffffc9000b73f560 EFLAGS: 00010287
RAX: ffffffff841842b9 RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc90020802000 RSI: 000000000000d04c RDI: 000000000000d04d
RBP: ffffc9000b73f670 R08: ffff888012d032c7 R09: 1ffff110025a0658
R10: dffffc0000000000 R11: ffffed10025a0659 R12: 000000000000081c
R13: 000000020000001c R14: ffff888012b751c0 R15: 1ffff1100256ea39
FS:  00007f20bdc436c0(0000) GS:ffff88808ccea000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6232642000 CR3: 0000000042857000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 evict_should_delete fs/gfs2/super.c:1257 [inline]
 gfs2_evict_inode+0xb49/0x1050 fs/gfs2/super.c:1400
 evict+0x61e/0xb10 fs/inode.c:837
 init_per_node+0x253/0x3f0 fs/gfs2/ops_fstype.c:918
 gfs2_fill_super+0x1a65/0x21d0 fs/gfs2/ops_fstype.c:1254
 get_tree_bdev_flags+0x431/0x4f0 fs/super.c:1691
 gfs2_get_tree+0x51/0x1e0 fs/gfs2/ops_fstype.c:1332
 vfs_get_tree+0x92/0x2a0 fs/super.c:1751
 fc_mount fs/namespace.c:1199 [inline]
 do_new_mount_fc fs/namespace.c:3636 [inline]
 do_new_mount+0x329/0xa50 fs/namespace.c:3712
 do_mount fs/namespace.c:4035 [inline]
 __do_sys_mount fs/namespace.c:4224 [inline]
 __se_sys_mount+0x31d/0x420 fs/namespace.c:4201
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f20bcd9bf4a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f20bdc42e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f20bdc42ee0 RCX: 00007f20bcd9bf4a
RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f20bdc42ea0
RBP: 00002000000124c0 R08: 00007f20bdc42ee0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
R13: 00007f20bdc42ea0 R14: 00000000000125c9 R15: 0000200000000000
 </TASK>