Hi, we are testing Btrfs as a kvm storage system with "defaults,space_cache,nodatacow" mount options and regular snapshots. While testing we sometimes get these warnings: WARNING: CPU: 5 PID: 11335 at /home/kernel/COD/linux/fs/btrfs/extent- tree.c:4029 btrfs_free_reserved_data_space+0x102/0x110 [btrfs]()
Full log: https://gist.github.com/anonymous/5f672f72899a3d52c20c Once they start, they flood dmesg with several messages per second. After a reboot, it takes a while until they start to appear again. We have seen them with Linux 4.0.6 and 4.1 This was already reported a few times: https://bugzilla.opensuse.org/show_bug.cgi?id=904023 https://bugzilla.redhat.com/show_bug.cgi?id=1173937 http://www.spinics.net/lists/linux-btrfs/msg39069.html https://lkml.org/lkml/2014/10/22/899 Always with no solution Is this a real problem or can we safely ignore this? Cheers, David -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
