Chris Murphy <lists <at> colorremedies.com> writes: > > How can I find out what file is on the block group that > > it's having a problem with? > > I think that's btrfs-debug-tree -b ? But don't hold me to that. > I haven't done enough debugging to find files > from block numbers. Another that might be relevant is > btrfs inspect-internal logical-resolve. > Nah, I don't think they're talking about the same thing. The messages I get in syslog for the 2 blocks are: Mar 4 07:59:23 ossy kernel: [124731.175116] BTRFS info (device sdd1): relocating block group 894460493824 flags 1 Mar 4 07:59:32 ossy kernel: [124739.613467] BTRFS error (device sdd1): allocation failed flags 17, wanted 1368420352 Mar 4 07:59:32 ossy kernel: [124739.613473] BTRFS: space_info 1 has 105551204352 free, is not full Mar 4 07:59:32 ossy kernel: [124739.613476] BTRFS: space_info total=1312112508928, used=1201166741504, pinned=0, reserved=565596160, may_use=1368420352, readonly=4828966912 Mar 4 10:49:33 ossy kernel: [134932.248146] BTRFS info (device sdd1): relocating block group 846142111744 flags 1 Mar 4 10:49:39 ossy kernel: [134938.440347] BTRFS error (device sdd1): allocation failed flags 17, wanted 1219825664 Mar 4 10:49:39 ossy kernel: [134938.440353] BTRFS: space_info 1 has 116232978432 free, is not full Mar 4 10:49:39 ossy kernel: [134938.440356] BTRFS: space_info total=1322849927168, used=1201311391744, pinned=0, reserved=476590080, may_use=1224540160, readonly=4828966912 But if I try to examine either of those block groups I get an error message that makes me think the 2 numbers are not really the same thing. root@ossy:~# /usr/src/btrfs-progs/btrfs-debug-tree -b 894460493824 /dev/sdc1 Check tree block failed, want=894460493824, have=7159859086769936959 Check tree block failed, want=894460493824, have=7159859086769936959 Check tree block failed, want=894460493824, have=7159859086769936959 read block failed check_tree_block Check tree block failed, want=894460493824, have=7159859086769936959 Check tree block failed, want=894460493824, have=7159859086769936959 Check tree block failed, want=894460493824, have=7159859086769936959 read block failed check_tree_block failed to read 894460493824 Sigh. So I'm stuck at 10GB on single, but I don't know which 10GB it is. root@ossy:~# /usr/src/btrfs-progs/btrfs fi df /mymedia Data, RAID1: total=1.21TiB, used=1.09TiB Data, single: total=10.00GiB, used=5.50GiB System, RAID1: total=32.00MiB, used=180.00KiB Metadata, RAID1: total=2.00GiB, used=1.45GiB If anyone knows why that allocation should fail (what is "flags 17"?), or how to force something more to happen, please reply. I'm sure this is due to the ext4 conversion, but that means the utility is making a btrfs filesystem that later can't be converted to another profile for some reason. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
