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 1 extents in 0ms gfs2: fsid=syz:syz.0: first mount done, others may mount ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5314 at ./include/linux/backing-dev.h:255 inode_to_wb include/linux/backing-dev.h:251 [inline] WARNING: CPU: 0 PID: 5314 at ./include/linux/backing-dev.h:255 folio_account_dirtied mm/page-writeback.c:2714 [inline] WARNING: CPU: 0 PID: 5314 at ./include/linux/backing-dev.h:255 __folio_mark_dirty+0xa4f/0xeb0 mm/page-writeback.c:2766 Modules linked in: CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted 6.15.0-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:inode_to_wb include/linux/backing-dev.h:251 [inline] RIP: 0010:folio_account_dirtied mm/page-writeback.c:2714 [inline] RIP: 0010:__folio_mark_dirty+0xa4f/0xeb0 mm/page-writeback.c:2766 Code: 48 c7 c7 00 3e 74 8b e8 7f d0 8a ff 90 0f 0b 90 90 e9 9e f7 ff ff e8 e0 73 c6 ff 90 0f 0b 90 e9 23 fe ff ff e8 d2 73 c6 ff 90 <0f> 0b 90 e9 3e fa ff ff 89 c2 80 e2 07 80 c2 03 38 ca 0f 8c b6 f7 RSP: 0018:ffffc9000d4b7008 EFLAGS: 00010083 RAX: ffffffff81f97dfe RBX: ffffea0000fc05c0 RCX: 0000000000100000 RDX: ffffc9000e1da000 RSI: 00000000000015de RDI: 00000000000015df RBP: 0000000000000001 R08: ffff888031d04cff R09: 1ffff110063a099f R10: dffffc0000000000 R11: ffffed10063a09a0 R12: ffff888031d04b88 R13: 1ffff110063a099f R14: 0000000000000000 R15: ffff888031d04cf8 FS: 00007f4aca25e6c0(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000003000 CR3: 000000003308c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mark_buffer_dirty+0x271/0x410 fs/buffer.c:1212 gfs2_unpin+0x125/0x9c0 fs/gfs2/lops.c:111 buf_lo_after_commit+0x15e/0x1b0 fs/gfs2/lops.c:736 lops_after_commit fs/gfs2/lops.h:51 [inline] gfs2_log_flush+0x109f/0x24c0 fs/gfs2/log.c:1115 do_sync+0xa1d/0xc60 fs/gfs2/quota.c:981 gfs2_quota_unlock+0x6f8/0x8a0 fs/gfs2/quota.c:1186 alloc_dinode+0x410/0x550 fs/gfs2/inode.c:-1 gfs2_create_inode+0xc5a/0x14e0 fs/gfs2/inode.c:739 gfs2_atomic_open+0xd2/0x220 fs/gfs2/inode.c:1317 atomic_open fs/namei.c:3561 [inline] lookup_open fs/namei.c:3672 [inline] open_last_lookups fs/namei.c:3800 [inline] path_openat+0xf63/0x3830 fs/namei.c:4036 do_filp_open+0x1fa/0x410 fs/namei.c:4066 do_sys_openat2+0x121/0x1c0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4ac938e969 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4aca25e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f4ac95b5fa0 RCX: 00007f4ac938e969 RDX: 000000000000275a RSI: 0000200000000600 RDI: ffffffffffffff9c RBP: 00007f4ac9410ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4ac95b5fa0 R15: 00007ffd782f4a38