syzbot


WARNING in folio_account_dirtied

Status: upstream: reported on 2022/05/22 20:13
Reported-by: syzbot+8d1d62bfb63d6a480be1@syzkaller.appspotmail.com
First crash: 37d, last: 37d

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 19258 at include/linux/backing-dev.h:264 folio_account_dirtied+0x61a/0x720 mm/page-writeback.c:2448
Modules linked in:
CPU: 1 PID: 19258 Comm: syz-executor.3 Not tainted 5.18.0-rc7-syzkaller-00015-gef1302160bfb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:inode_to_wb include/linux/backing-dev.h:261 [inline]
RIP: 0010:folio_account_dirtied+0x61a/0x720 mm/page-writeback.c:2448
Code: ff ff e9 6e fd ff ff e8 c4 6d d2 ff 4c 89 f7 4c 89 e6 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d e9 eb af 29 00 e8 a6 6d d2 ff <0f> 0b 43 80 3c 3c 00 0f 85 36 fd ff ff e9 39 fd ff ff 48 c7 c1 f4
RSP: 0018:ffffc90002e5f840 EFLAGS: 00010093
RAX: ffffffff81b3a75a RBX: 0000000000000000 RCX: ffff8880795c9d80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888140c8ef80 R08: ffffffff81b3a71e R09: fffff940003cd8c9
R10: fffff940003cd8c9 R11: 1ffffd40003cd8c8 R12: 1ffff11028191df0
R13: 0000000000000001 R14: ffffea0001e6c640 R15: dffffc0000000000
FS:  0000555556a2c400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0157c0000 CR3: 0000000034a53000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000003b DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __folio_mark_dirty+0x125/0x260 mm/page-writeback.c:2499
 __set_page_dirty include/linux/pagemap.h:1008 [inline]
 mark_buffer_dirty+0x263/0x560 fs/buffer.c:1105
 gfs2_unpin+0x116/0xa40 fs/gfs2/lops.c:111
 buf_lo_after_commit+0x172/0x1d0 fs/gfs2/lops.c:747
 lops_after_commit fs/gfs2/lops.h:49 [inline]
 gfs2_log_flush+0x1258/0x2770 fs/gfs2/log.c:1108
 do_sync+0xbe7/0xe60 fs/gfs2/quota.c:967
 gfs2_quota_sync+0x3da/0x8b0 fs/gfs2/quota.c:1310
 gfs2_sync_fs+0x49/0xb0 fs/gfs2/super.c:642
 sync_filesystem+0xe8/0x220 fs/sync.c:56
 generic_shutdown_super+0x6b/0x300 fs/super.c:445
 kill_block_super+0x79/0xd0 fs/super.c:1394
 deactivate_locked_super+0xa7/0xf0 fs/super.c:332
 cleanup_mnt+0x452/0x500 fs/namespace.c:1186
 task_work_run+0x146/0x1c0 kernel/task_work.c:164
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x134/0x160 kernel/entry/common.c:169
 exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1c2e88a557
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff1b126788 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1c2e88a557
RDX: 00007fff1b12685a RSI: 000000000000000a RDI: 00007fff1b126850
RBP: 00007fff1b126850 R08: 00000000ffffffff R09: 00007fff1b126620
R10: 0000555556a2d8b3 R11: 0000000000000246 R12: 00007f1c2e8e21f8
R13: 00007fff1b127910 R14: 0000555556a2d810 R15: 00007fff1b127950
 </TASK>

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2022/05/18 20:03 upstream ef1302160bfb 50c53f39 .config log report info WARNING in folio_account_dirtied