Has anyone see this one before? We've been hitting it sporatically for a
while now, although recently we've been able to trigger pretty easily.
The result is EINVAL from the snap create ioctl.
The kernel is v3.2 + some ceph stuff.
The code in question is
/* if we have links, this was a truncate, lets do that */
if (inode->i_nlink) {
if (!S_ISREG(inode->i_mode)) {
WARN_ON(1);
iput(inode);
continue;
}
Is this something obvious, or should we spend some time chasing it down?
sage
2012-01-27T03:45:07.863424-08:00 sepia95 kernel: [55980.217352] ------------[
cut here ]------------
2012-01-27T03:45:07.863501-08:00 sepia95 kernel: [55980.217403] WARNING: at
/srv/autobuild-ceph/gitbuilder.git/build/fs/btrfs/inode.c:2222
btrfs_orphan_cleanup+0xce/0x4e0 [btrfs]()
2012-01-27T03:45:07.863881-08:00 sepia95 kernel: [55980.217413] Hardware name:
X6DVA
2012-01-27T03:45:07.864092-08:00 sepia95 kernel: [55980.217420] Modules linked
in: ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs exportfs reiserfs
psmouse ppdev parport_pc e752x_edac lp edac_core parport serio_raw shpchp e1000
btrfs floppy zlib_deflate crc32c libcrc32c
2012-01-27T03:45:07.864322-08:00 sepia95 kernel: [55980.217502] Pid: 12666,
comm: ceph-osd Not tainted 3.2.0-ceph-00037-gc68bdb1 #1
2012-01-27T03:45:07.864531-08:00 sepia95 kernel: [55980.217511] Call Trace:
2012-01-27T03:45:07.864549-08:00 sepia95 kernel: [55980.217529]
[<ffffffff810634af>] warn_slowpath_common+0x7f/0xc0
2012-01-27T03:45:07.864564-08:00 sepia95 kernel: [55980.217542]
[<ffffffff8106350a>] warn_slowpath_null+0x1a/0x20
2012-01-27T03:45:07.864605-08:00 sepia95 kernel: [55980.217578]
[<ffffffffa004215e>] btrfs_orphan_cleanup+0xce/0x4e0 [btrfs]
2012-01-27T03:45:07.864619-08:00 sepia95 kernel: [55980.217596]
[<ffffffff8131bffe>] ? do_raw_spin_unlock+0x5e/0xb0
2012-01-27T03:45:07.864648-08:00 sepia95 kernel: [55980.217632]
[<ffffffffa0068b62>] btrfs_mksubvol+0x302/0x3d0 [btrfs]
2012-01-27T03:45:07.864661-08:00 sepia95 kernel: [55980.217668]
[<ffffffffa0068d18>] btrfs_ioctl_snap_create_transid+0xe8/0x180 [btrfs]
2012-01-27T03:45:07.864675-08:00 sepia95 kernel: [55980.217704]
[<ffffffffa0068e39>] btrfs_ioctl_snap_create_v2+0x89/0x100 [btrfs]
2012-01-27T03:45:07.864688-08:00 sepia95 kernel: [55980.217719]
[<ffffffff8109f730>] ? __lock_acquire+0x210/0x15d0
2012-01-27T03:45:07.864711-08:00 sepia95 kernel: [55980.217752]
[<ffffffffa006989a>] btrfs_ioctl+0x59a/0x1060 [btrfs]
2012-01-27T03:45:07.864725-08:00 sepia95 kernel: [55980.217768]
[<ffffffff81178040>] ? fget_light+0x40/0x130
2012-01-27T03:45:07.864739-08:00 sepia95 kernel: [55980.217780]
[<ffffffff81188714>] do_vfs_ioctl+0xa4/0x580
2012-01-27T03:45:07.864752-08:00 sepia95 kernel: [55980.217793]
[<ffffffff811780d2>] ? fget_light+0xd2/0x130
2012-01-27T03:45:07.864775-08:00 sepia95 kernel: [55980.217804]
[<ffffffff81178040>] ? fget_light+0x40/0x130
2012-01-27T03:45:07.864789-08:00 sepia95 kernel: [55980.217817]
[<ffffffff81188c91>] sys_ioctl+0xa1/0xb0
2012-01-27T03:45:07.864803-08:00 sepia95 kernel: [55980.217831]
[<ffffffff8160e1c2>] system_call_fastpath+0x16/0x1b
2012-01-27T03:45:07.864816-08:00 sepia95 kernel: [55980.217841] ---[ end trace
7be8f23802b76936 ]---
2012-01-27T03:45:07.864829-08:00 sepia95 kernel: [55980.217871] btrfs: Error
removing orphan entry, stopping orphan cleanup
2012-01-27T03:45:07.864852-08:00 sepia95 kernel: [55980.224667] btrfs: could
not do orphan cleanup -22
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