gfs2: fsid=syz:syz.0: jid=0, already locked for use gfs2: fsid=syz:syz.0: jid=0: Looking at journal... gfs2: fsid=syz:syz.0: jid=0: Done gfs2: fsid=syz:syz.0: first mount done, others may mount audit: type=1800 audit(1673355421.796:2): pid=8113 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor243" name="bus" dev="loop0" ino=9375 res=0 WARNING: CPU: 1 PID: 8113 at include/linux/backing-dev.h:340 inode_to_wb include/linux/backing-dev.h:340 [inline] WARNING: CPU: 1 PID: 8113 at include/linux/backing-dev.h:340 account_page_dirtied+0x8cc/0xbb0 mm/page-writeback.c:2420 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8113 Comm: syz-executor243 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x5a kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:183 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 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:inode_to_wb include/linux/backing-dev.h:340 [inline] RIP: 0010:account_page_dirtied+0x8cc/0xbb0 mm/page-writeback.c:2420 Code: 88 01 00 00 be ff ff ff ff 48 8d 78 70 e8 ec e1 ca ff 31 ff 89 c3 89 c6 e8 f1 b3 e2 ff 85 db 0f 85 39 f9 ff ff e8 74 b2 e2 ff <0f> 0b e9 2d f9 ff ff e8 68 b2 e2 ff 4c 89 e6 4c 89 ef e8 9d b3 2d RSP: 0018:ffff88809d04f940 EFLAGS: 00010093 RAX: ffff888091c82240 RBX: 0000000000000000 RCX: ffffffff817fd2ef RDX: 0000000000000000 RSI: ffffffff817fd2fc RDI: 0000000000000005 RBP: ffff8880b1b92a20 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffffea0002739280 R13: ffff8880b1b92898 R14: ffff8880a34c0ca0 R15: ffffea0002739288 __set_page_dirty+0x7f/0x3e0 fs/buffer.c:582 mark_buffer_dirty+0x424/0x5c0 fs/buffer.c:1111 gfs2_unpin+0xd6/0xe80 fs/gfs2/lops.c:108 buf_lo_after_commit+0x140/0x210 fs/gfs2/lops.c:512 lops_after_commit fs/gfs2/lops.h:67 [inline] gfs2_log_flush+0x9fa/0x1ef0 fs/gfs2/log.c:831 gfs2_kill_sb+0x54/0x1a0 fs/gfs2/ops_fstype.c:1383 deactivate_locked_super+0x94/0x160 fs/super.c:329 deactivate_super+0x174/0x1a0 fs/super.c:360 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098 task_work_run+0x148/0x1c0 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0xbf3/0x2be0 kernel/exit.c:870 do_group_exit+0x125/0x310 kernel/exit.c:967 __do_sys_exit_group kernel/exit.c:978 [inline] __se_sys_exit_group kernel/exit.c:976 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:976 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f21b5be69e9 Code: Bad RIP value. RSP: 002b:00007ffda9875158 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f21b5c93330 RCX: 00007f21b5be69e9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f21b5c8de40 R10: 00007ffda9875070 R11: 0000000000000246 R12: 00007f21b5c93330 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 Kernel Offset: disabled Rebooting in 86400 seconds..