** Description changed: - GlusterFS version 11.1 contains a recursion bug - (https://github.com/gluster/glusterfs/issues/4295) which results in - bricks SEGFAULTing. The issue was fixed upstream by - https://github.com/gluster/glusterfs/pull/4302, but the fix has yet to - be included in a release. I encountered this issue when upgrading from - 22.04 to 24.04 - (https://github.com/gluster/glusterfs/issues/4085#issuecomment-2094525275). + [ Impact ] - I think a patch should be considered for this since it results in - possible data loss or corruption depending on the user's configuration - and timing of brick crashes. I've asked the GlusterFS maintainers to cut - new release with the fix but it's unclear when that may be done. + * Users experience brick SEGFAULTs under certain not-yet-understood + scenarios. Some reports include a high percentage of small file I/O. I + encountered the issue roughly every hour with Minio backed by GlusterFS + on ZFS. + + * This bug introduces an increased risk of data loss or corruption + depending on the user's configuration and timing of brick crashes. + + * Core dumps from multiple users revealed that the SEGFAULTs are caused + by a stack overflow when namespaced inodes are destroyed. + + * The patch removes the recursive call to `inode_unref` when a + namespaced inode is destroyed. + + [ Test Plan ] + + * The triggers for the issue are not well understood. I have compiled + the patch into version 11.1-4build3 of glusterfs and it resolved the + issue on my system. + + [ Where problems could occur ] + + * It's conceivable that this patch introduces undesired behavior when + inodes are destroyed, however I highly doubt this scenario as + __inode_destroy (private function) did not call inode_unref (public + function) before the change which introduced the bug. + + [ Other Info ] + + * PR which introduced the bug: https://github.com/gluster/glusterfs/pull/1763 + * PR which added this patch: https://github.com/gluster/glusterfs/pull/4302 + * Issue discussion: https://github.com/gluster/glusterfs/issues/4295
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2064843 Title: Gluster 11.1 brick SEGFAULT To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glusterfs/+bug/2064843/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
