On Fri, 03 Oct 2014 14:15:11 +0100 Filipe Manana <fdman...@suse.com> wrote: > Just tried it and I confirm filefrag's call to ioctl FS_IOC_FIEMAP fails > with -EEXIST. > > It's actually a known issue affecting any of the 3.17 RCs (except RC1). > The extent map manipulation/merging is broken for some cases. Try with > this 2 patches on top of 3.17-rcX: > > https://patchwork.kernel.org/patch/4929981/ > https://patchwork.kernel.org/patch/4945191/
ok, 2nd patch did not apply cleanly, so I just replaced the < with <=. Otherwise, I can confirm the patches are fixing the issue here. > Or, alternatively, reverting this patch: > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=51f395ad4058883e4273b02fdebe98072dbdc0d2 > > Someone else reported on this list a write/pwrite/writev failure with > errno EEXIST too (and apparently caused by the same reason). > > This broken extent map handling is serious IMHO, it can make fsync log > bogus extent items for example, amongst other possible bad and weird things. Yes, it clearly corrupted by files in a strange way. Please try to get it into final, or at least -stable if too late. Marc -- 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
