gfs2_sys_fs_add+0x18e/0x440 fs/gfs2/sys.c:659
gfs2: fsid=syz:syz.0: jid=0, already locked for use
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
 fill_super+0x1240/0x2550 fs/gfs2/ops_fstype.c:1103
WARNING: CPU: 0 PID: 27386 at block/blk-core.c:2182 bio_check_ro block/blk-core.c:2182 [inline]
WARNING: CPU: 0 PID: 27386 at block/blk-core.c:2182 generic_make_request_checks+0x17d9/0x22e0 block/blk-core.c:2287
Kernel panic - not syncing: panic_on_warn set ...

 gfs2_mount+0x4c0/0x598 fs/gfs2/ops_fstype.c:1316
 mount_fs+0xa3/0x30c fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2469 [inline]
 do_mount+0x113c/0x2f10 fs/namespace.c:2799
 ksys_mount+0xcf/0x130 fs/namespace.c:3015
 __do_sys_mount fs/namespace.c:3029 [inline]
 __se_sys_mount fs/namespace.c:3026 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3026
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x460c6a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007ff37d54da78 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ff37d54db10 RCX: 0000000000460c6a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ff37d54dad0
RBP: 00007ff37d54dad0 R08: 00007ff37d54db10 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020047a20
CPU: 0 PID: 27386 Comm: syz-executor.0 Not tainted 4.19.165-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2fe lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x61 kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:bio_check_ro block/blk-core.c:2182 [inline]
RIP: 0010:generic_make_request_checks+0x17d9/0x22e0 block/blk-core.c:2287
Code: ca 0a 00 00 45 8b b6 e4 04 00 00 48 8d 74 24 68 48 89 ef e8 d9 2b 06 00 48 c7 c7 00 06 b2 88 48 89 c6 44 89 f2 e8 d2 bc ce fd <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02
RSP: 0018:ffff88804e3bf0a8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff8880ae6400c0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814fdd11 RDI: ffffed1009c77e07
gfs2: fsid=syz:syz: error -17 adding sysfs files
RBP: ffff8880a33930c0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880a33930f0
R13: ffff8880a33930c8 R14: 0000000000000000 R15: 0000000000000000
 generic_make_request+0x23f/0xdf0 block/blk-core.c:2411
 submit_bio+0xb1/0x430 block/blk-core.c:2575
 submit_bh_wbc+0x5a7/0x760 fs/buffer.c:3090
 __block_write_full_page+0x71a/0xf60 fs/buffer.c:1777
 block_write_full_page+0x1f3/0x260 fs/buffer.c:2951
 __writepage+0x5e/0xe0 mm/page-writeback.c:2305
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 generic_writepages mm/page-writeback.c:2329 [inline]
 generic_writepages+0xdb/0x150 mm/page-writeback.c:2318
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 __filemap_fdatawrite mm/filemap.c:454 [inline]
 filemap_fdatawrite mm/filemap.c:459 [inline]
 filemap_write_and_wait mm/filemap.c:640 [inline]
 filemap_write_and_wait+0x42/0xd0 mm/filemap.c:635
 __sync_blockdev fs/block_dev.c:463 [inline]
 sync_blockdev fs/block_dev.c:472 [inline]
 __blkdev_put+0x682/0x870 fs/block_dev.c:1804
 blkdev_close+0x86/0xb0 fs/block_dev.c:1888
 __fput+0x2ce/0x890 fs/file_table.c:278
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xbed/0x2be0 kernel/exit.c:890
 do_group_exit+0x125/0x310 kernel/exit.c:993
 get_signal+0x3f2/0x1f70 kernel/signal.c:2589
 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:821
 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45e219
Code: 5c 24 08 4c 89 54 24 10 44 89 64 24 18 44 89 44 24 1c 4c 89 4c 24 20 48 8b 84 24 80 00 00 00 48 8d 94 24 80 00 00 00 ff d0 80 <7c> 24 28 00 75 22 48 8b 9c 24 a8 00 00 00 48 8b 73 28 48 8b 4b 30
RSP: 002b:00007fd994d7dcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 000000000119c030 RCX: 000000000045e219
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 000000000119c034
RBP: 000000000119c028 R08: 0000000000000005 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000119c034
R13: 00007ffd223a67cf R14: 00007fd994d7e9c0 R15: 000000000119c034
Kernel Offset: disabled
Rebooting in 86400 seconds..