ecryptfs team mailing list archive

[Tom Jaeger <ThJaeger@xxxxxxxxx>]

Theodore Ts'o wrote:
> @Raine,
> 
> Well, if the applications were written correctly, there wouldn't be any
> data loss problems.  I suppose we could thank the unreliable proprietary
> binary drivers that were causing all of these crashes, so we could find
> out about the buggy application code.   :-)

Well, maybe if the kernel actually exposed the API that applications
need (namely, in this case, atomically replacing the contents of a file
without forcing it [or in case of ext3 the whole file system] to be
written to disk), then application would have an easier time "doing
things right".

Anyone want to venture a guess as to how many laptop hard drives have
died due to excessive wear caused by firefox calling fsync multiple
times on basically any user action to ensure data integrity?

-- 
Ext4 data loss
https://bugs.launchpad.net/bugs/317781
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Status in “ecryptfs-utils” source package in Ubuntu: Invalid
Status in “linux” source package in Ubuntu: Confirmed
Status in ecryptfs-utils in Ubuntu Jaunty: Invalid
Status in linux in Ubuntu Jaunty: Confirmed

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