Public bug reported: A problematic kernel patch has been backported to Ubuntu since linux-image-3.5.0-18-generic: * jbd2: don't write superblock when if its empty (LP: #1066176)
There are a few discussions on this issue: http://www.phoronix.com/scan.php?page=news_item&px=MTIxNDQ https://bbs.archlinux.org/viewtopic.php?id=151341&p=1 https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=8c673cbc7682b3f2862fe42f8069cac20c09e160 "This could potentially lead to minor file system corruptions (pass 5 complaints with the inode allocation bitmap) after an unclean shutdown under the wrong/unlucky workloads, but it turned into major failure if the journal_checksum and/or jouaral_async_commit was enabled." Another bug Bug #1019347 causing unclean shutdown makes the scenario worse in Ubuntu 12.10. I experienced serious filesystem corruptions twice on a newly installed Ubuntu 12.10 system after upgrading to the latest 3.5.0-21 kernel, especially when I frequently reboot my computer. ** Affects: linux-lts-quantal (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1095220 Title: ext4 file system corruptions due to a kernel bug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-quantal/+bug/1095220/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
