Huan Zhang, thank you for reporting this bug to Ubuntu. linux-lts-quantal
reached EOL on August 2014.
See the following documents for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases
https://wiki.ubuntu.com/Kernel/LTSEnablementStack
If this is still reproducible in a supported release, please execute the
following in a terminal:
apport-collect 1095220
Otherwise, please mark this as Invalid.
** Package changed: linux-lts-quantal (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in: linux (Ubuntu)
Status: New => Incomplete
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1095220
Title:
ext4 file system corruptions due to a kernel bug
Status in linux package in Ubuntu:
Incomplete
Bug description:
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.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1095220/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
