Comments for SRU consideration (https://wiki.ubuntu.com/StableReleaseUpdates)
[Impact] * Setting issue_discards=1 in /etc/lvm.conf (non-default) results in data loss, if pvmove is performed on a Logical Volume which is moved to or form an SSD or other block devices which supports discards * As this bug *directly cause a loss of user data* this fix should be uploaded to quantal (lvm2 in precise is not effected, because it does not support the issue_discards option. [Test Case] * Enable issue_discards=1 in /etc/lvm.conf * Create a volumegroup with two physical volumes (at least one of these must support discards (e.g. an SSD) * Create a test logical volume * Create a filesystem on this logical volume * With pvmove, move the underlying logical volume to the other physical volume => experience Data loss (in my experiments the whole logical volume was zeroed, checked with hexdumd /dev/vgtest/lvtest) [Regression Potential] * The upload 2.02.95-5ubuntu1 pulls in some other changes, however they do not seem be critical. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1082325 Title: pvmove wipes data when issue_discards=1 on SSD To manage notifications about this bug go to: https://bugs.launchpad.net/lvm2/+bug/1082325/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
