Jan Schmidt <list.btrfs@xxxxxxxxxxxxx> schrieb: >>>> Apparently, it's not fixed. The system does not freeze now but it threw >>>> multiple backtraces right in front of my Xorg session. The backtraces >>>> look a little bit different now. Here's what I got: >>>> >>>> https://gist.github.com/kakra/8a340f006d01e146865d >>>> >>>> Occurence while running "bedup dedup --defrag --size-cutoff >>>> $((1024*1024))" which was currently dedup'ing my backup volume with >>>> daily snapshots filled by "rsync --inplace" - so I suppose some file >>>> contents are pretty scattered. >>> >>> At least that looks different for now. I'm not certain about all the >>> fixes in btrfs-next. Can you give it a try and bisect if btrfs-next is >>> good? That would be really helpful. >> >> I'd prefer to not bisect my production system kernel... That will >> probably take ages as running the "reproducable test" takes about 30-60 >> minutes before the problem hits my system. At least unless you had a >> suggestion how to speed up the process... ;-) > > I see, hoped it would be something quicker. > >> I saw the pull request with those fixes, so I supsect it didn't go into >> 3.9.1 but rather will go into 3.9.2? > > Probably. However, those patches obviously weren't enough to solve your > problem. We don't submit a lot of things to stable, so they are likely to > remain the only btrfs related changes in there, which would mean it is > unlikely to help with your problem. I turned off autodefrag which fixes these problems. So without bisect I can at least say the problem is probably somewhere in the new snapshot-aware defragmentation code which came with 3.9.0 or related to the introduction of the same. 3.9.2 still does not fix anything. I'll go with autodefrag=off for the moment until I hear some news in that regard. With this new information, is it still helpful to get a metadata image from me? It should be reproducable if you enable autodefrag or defragment cow'ed files. Regards, Kai -- 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
