On Wed, November 14, 2012 at 19:26 (+0100), Jérôme Poulin wrote: > Using Debian experimental kernel, 3.6.4-1~experimental.1, and latest > btrfs tools from git master, I am not able to execute btrfs subvolume > list. > > # ./btrfs sub li /mnt/data0/ > ERROR: Failed to lookup path for root 0 - No such file or directory > > After bisecting with git, I was able to confirm that commit > 162df1e30c7c0492ae9fb551d74452e643f5fea2 breaks btrfs subvolume list > on my current kernel.
I can confirm this. Steps to reproduce: - create subvolume - put some data in - delete subvolume - call "btrfs subvol list" immediately If you give it some time, listing of subvolumes eventually works. Calling "sync" doesn't help, surprisingly, while umount/mount does. Some add_root get's called with ref_tree = 0, which in turn makes lookup_ino_path call BTRFS_IOC_INO_LOOKUP with a treeid of 0, which looks wrong to me. I haven't looked any closer. Miao, as that was your patch, can you probably check if you can reproduce the problem? Thanks, -Jan -- 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
