cgroup: Unknown subsys name 'cpuset'
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
gfs2: fsid=syz:syz.0: found 1 quota changes
syz.0.0: attempt to access beyond end of device
loop0: rw=14337, sector=68719479080, nr_sectors = 8 limit=32768
Buffer I/O error on dev loop0, logical block 8589934885, lost async page write
syz.0.0: attempt to access beyond end of device
loop0: rw=12288, sector=68719479080, nr_sectors = 8 limit=32768
syz.0.0: attempt to access beyond end of device
loop0: rw=12288, sector=68719479080, nr_sectors = 8 limit=32768
gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_empty_one, file = fs/gfs2/log.c, line = 328
gfs2: fsid=syz:syz.0: about to withdraw this file system
gfs2: fsid=syz:syz.0: Journal recovery skipped for jid 0 until next mount.
gfs2: fsid=syz:syz.0: Glock dequeues delayed: 0
gfs2: fsid=syz:syz.0: File system withdrawn
CPU: 0 UID: 0 PID: 5318 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
 revoke_lo_before_commit+0x2f/0xe60 fs/gfs2/lops.c:857
 lops_before_commit fs/gfs2/lops.h:42 [inline]
 gfs2_log_flush+0xb8b/0x24c0 fs/gfs2/log.c:1105
 gfs2_kill_sb+0x5d/0x340 fs/gfs2/ops_fstype.c:1782
 deactivate_locked_super+0xbc/0x130 fs/super.c:473
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1327
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6b5/0x2300 kernel/exit.c:966
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107
 get_signal+0x1285/0x1340 kernel/signal.c:3034
 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4cc2d8efc9
Code: Unable to access opcode bytes at 0x7f4cc2d8ef9f.
RSP: 002b:00007f4cc3b900e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f4cc2fe5fa8 RCX: 00007f4cc2d8efc9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4cc2fe5fac
RBP: 00007f4cc2fe5fa0 R08: 3fffffffffffffff R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4cc2fe6038 R14: 00007ffe8dee7780 R15: 00007ffe8dee7868
 </TASK>
------------[ cut here ]------------
kernel BUG at fs/gfs2/super.c:76!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5318 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:gfs2_jindex_free+0x43e/0x440 fs/gfs2/super.c:76
Code: c8 db 46 07 cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c ea fd ff ff e8 f2 0c 23 fe e9 e0 fd ff ff e8 e8 f7 43 07 e8 33 cd bb fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6
RSP: 0018:ffffc9000f577800 EFLAGS: 00010293
RAX: ffffffff840448fd RBX: dead000000000122 RCX: ffff88801f6c8000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff
RBP: ffffc9000f5778c0 R08: ffff88803d07cde7 R09: 1ffff11007a0f9bc
R10: dffffc0000000000 R11: ffffed1007a0f9bd R12: ffff88803d07c8b0
R13: dffffc0000000000 R14: ffff8880354d4d00 R15: ffff8880354d4d78
FS:  0000000000000000(0000) GS:ffff88808d732000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000565357c9d5f8 CR3: 000000001152b000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 gfs2_put_super+0x8af/0x950 fs/gfs2/super.c:636
 generic_shutdown_super+0x135/0x2c0 fs/super.c:642
 kill_block_super+0x44/0x90 fs/super.c:1722
 deactivate_locked_super+0xbc/0x130 fs/super.c:473
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1327
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6b5/0x2300 kernel/exit.c:966
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107
 get_signal+0x1285/0x1340 kernel/signal.c:3034
 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4cc2d8efc9
Code: Unable to access opcode bytes at 0x7f4cc2d8ef9f.
RSP: 002b:00007f4cc3b900e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f4cc2fe5fa8 RCX: 00007f4cc2d8efc9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4cc2fe5fac
RBP: 00007f4cc2fe5fa0 R08: 3fffffffffffffff R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4cc2fe6038 R14: 00007ffe8dee7780 R15: 00007ffe8dee7868
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_jindex_free+0x43e/0x440 fs/gfs2/super.c:76
Code: c8 db 46 07 cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c ea fd ff ff e8 f2 0c 23 fe e9 e0 fd ff ff e8 e8 f7 43 07 e8 33 cd bb fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6
RSP: 0018:ffffc9000f577800 EFLAGS: 00010293
RAX: ffffffff840448fd RBX: dead000000000122 RCX: ffff88801f6c8000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff
RBP: ffffc9000f5778c0 R08: ffff88803d07cde7 R09: 1ffff11007a0f9bc
R10: dffffc0000000000 R11: ffffed1007a0f9bd R12: ffff88803d07c8b0
R13: dffffc0000000000 R14: ffff8880354d4d00 R15: ffff8880354d4d78
FS:  0000000000000000(0000) GS:ffff88808d732000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000565357c9d5f8 CR3: 000000001152b000 CR4: 0000000000352ef0