Hi Thimo, Recently, Xiao Ni, the original author of the Raid10 block discard patchset, has posted a new revision of the patchset to the linux-raid mailing list for feedback.
Xiao has fixed the two bugs that caused the regression. The first was incorrectly calculating the start offset for block discard for the second and extra disks. The second bug was an incorrect stripe size for far layouts. The new patches are: https://www.spinics.net/lists/raid/msg67208.html https://www.spinics.net/lists/raid/msg67212.html https://www.spinics.net/lists/raid/msg67213.html https://www.spinics.net/lists/raid/msg67209.html https://www.spinics.net/lists/raid/msg67210.html https://www.spinics.net/lists/raid/msg67211.html Now, at some point in the future I do want to try and SRU these patches to the Ubuntu kernel, but only when they are ready. I was wondering if you would be interested in helping to test these new patches, since you have a lot of experience with Raid10. If you have some time, and a dedicated spare server, read comment 13 in the below bug which contains instructions to install test kernels I have built. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1896578/comments/13 This is entirely optional, and don't feel that you are obligated to test. We just want to get more eyes on the patches and some wider testing done, and to give feedback back to Xiao, the author, and to Song Liu, the Raid subsystem maintainer about the performance and safety of these patches. I have tested the test kernels with the regression reproducer from this bug, and the mismatch count is always 0, and all fsck -f comes back clean for all disks. If you have some spare time and a spare server, I would really appreciate help testing these kernels. Thanks! Matthew -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907262 Title: raid10: discard leads to corrupted file system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907262/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
