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[André Barmasse <andre.barmasse@xxxxxxxxxxxx>]

Hello together

Just reporting some observations after making a brand new installation
of Ubuntu 9.04 with ext4 as default file system on my Sony Vaio VGN-
FS195VP. Since the installation some days ago I had again four hard
locks, but luckily - despite my experiences some weeks ago - without any
data loss. All of them happened with the standard installation of Ubuntu
on the Gnome desktop.

One hard lock happened when listening internet radio with quodlibet in
the background and trying to update Ubuntu via Synaptics. Another one
when trying to rip a dvd with wine and dvdshrink in the background and
trying to open other applications (Firefox, Bluefish, gFTP) almost at
the same time. The other two happended when trying to remove some ISO
files of DVDs (together maybe about 12 GB data) from the trash. The
trash icon on the desktop turned empty (actuallly a good sign), but
about five seconds later the entire system crashed .

The Kernel running on my system is 2.6.28-11-generic and the Gnome
version is 2.6.28-11-generic. Since I am not a very technical guy, I
have not applied any of the above mentioned remedies. But as I am very
happy with ext4 as my default file system (and have not yet experienced
data loss!) I will keep it hoping that there will be some fixes in the
next Kernel.

Thanks for all your explanations about ext4, Theodore Ts'o, and keep up
the good work!

-- 
Ext4 data loss
https://bugs.launchpad.net/bugs/317781
You received this bug notification because you are a member of eCryptfs,
which is subscribed to ecryptfs-utils in ubuntu.

Status in “ecryptfs-utils” source package in Ubuntu: Invalid
Status in “linux” source package in Ubuntu: Fix Released
Status in ecryptfs-utils in Ubuntu Jaunty: Invalid
Status in linux in Ubuntu Jaunty: Fix Released

Bug description:
I recently installed Kubuntu Jaunty on a new drive, using Ext4 for all my data.

The first time i had this problem was a few days ago when after a power loss ktimetracker's config file was replaced by a 0 byte version . No idea if anything else was affected.. I just noticed ktimetracker right away.

Today, I was experimenting with some BIOS settings that made the system crash right after loading the desktop. After a clean reboot pretty much any file written to by any application (during the previous boot) was 0 bytes.
For example Plasma and some of the KDE core config files were reset. Also some of my MySQL databases were killed...

My EXT4 partitions all use the default settings with no performance tweaks. Barriers on, extents on, ordered data mode..

I used Ext3 for 2 years and I never had any problems after power losses or system crashes.

Jaunty has all the recent updates except for the kernel that i don't upgrade because of bug #315006

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
NonfreeKernelModules: nvidia
Package: linux-image-2.6.28-4-generic 2.6.28-4.6
ProcCmdLine: root=UUID=81942248-db70-46ef-97df-836006aad399 ro rootfstype=ext4 vga=791 all_generic_ide elevator=anticipatory
ProcEnviron:
 LANGUAGE=
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-4.6-generic
SourcePackage: linux