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 3 extents in 0ms gfs2: fsid=syz:syz.0: first mount done, others may mount gfs2: fsid=syz:syz.0: found 1 quota changes ------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff8880446954e8, owner = 0x0, curr 0xffff888000e84880, list empty WARNING: CPU: 0 PID: 5330 at kernel/locking/rwsem.c:1368 __up_write kernel/locking/rwsem.c:1367 [inline] WARNING: CPU: 0 PID: 5330 at kernel/locking/rwsem.c:1368 up_write+0x506/0x590 kernel/locking/rwsem.c:1630 Modules linked in: CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted 6.15.0-rc2-syzkaller-00278-gfc96b232f8e7 #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:__up_write kernel/locking/rwsem.c:1367 [inline] RIP: 0010:up_write+0x506/0x590 kernel/locking/rwsem.c:1630 Code: c7 c7 a0 d9 4a 8c 48 c7 c6 c0 db 4a 8c 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 0f 32 e4 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 6a fd ff ff 48 c7 c1 64 15 60 90 80 e1 07 80 c1 03 RSP: 0018:ffffc9000d30fd20 EFLAGS: 00010292 RAX: 2878557ae02d0a00 RBX: ffffffff8c4ada80 RCX: ffff888000e84880 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000d30fdf0 R08: ffffffff818218d2 R09: fffffbfff1d7a960 R10: dffffc0000000000 R11: fffffbfff1d7a960 R12: 0000000000000000 R13: ffff8880446954e8 R14: 1ffff92001a61fac R15: dffffc0000000000 FS: 00007ff5342866c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffe2bc39c0 CR3: 00000000441ce000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_unlock include/linux/fs.h:872 [inline] done_path_create fs/namei.c:4135 [inline] do_mkdirat+0x2ff/0x3f0 fs/namei.c:4362 __do_sys_mkdirat fs/namei.c:4374 [inline] __se_sys_mkdirat fs/namei.c:4372 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4372 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff53338e169 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:00007ff534286038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007ff5335b6080 RCX: 00007ff53338e169 RDX: 0000000000000000 RSI: 0000200000000280 RDI: 0000000000000006 RBP: 00007ff533410a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ff5335b6080 R15: 00007fffe2bc41a8