I can't reproduce this right know, but it seems that creating lots of snapshots, one per minute (keeping only a dozens of them) may block the system. Every btrfs snap processes stay idle and the load skyrockets to 900.
I use an old version: 2.6.34.5 kernel, and the system is still very responsive (web and mysql server). I would apreciate if somebody could tell me about the current kernel (I had stability issues with 2.6.35 series). # btrfs filesys show Label: 'btrfs' uuid: e13357f4-c40c-4940-87bd-4f5142d32c49 Total devices 2 FS bytes used 8.67GB devid 1 size 1.81TB used 12.03GB path /dev/sda2 devid 2 size 1.81TB used 12.01GB path /dev/sdb2 # btrfs filesys df /var Data, RAID1: total=11.00GB, used=8.24GB Metadata, RAID1: total=1.00GB, used=436.21MB System, RAID1: total=8.00MB, used=4.00KB Data: total=8.00MB, used=0.00 Metadata: total=8.00MB, used=0.00 System: total=4.00MB, used=0.00 Regards, PS: extract from dmesg if somebody is interested. http://pastebin.com/8zE4GKXu -- Xavier Nicollet -- 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