[Critical regression] Kernel bug causes massive filesystem corruption

[®om]

As soon as I updated today, I have the same bug as 346691 (I already had with 2.6.28 kernel) on 64 bits installation.

My whole data was corrupted, I had to format. I reinstalled, all worked fine… until I "apt-get upgrade" again, where I had the same problem again.

I use the beta version since 2nd september, it worked fine until today.

It seems to be exactly the same bug as the one present in 2.6.28 kernel (problem I had with Ubuntu 9.04), which has been fixed.

I will test reinstalling in 32 bits to confirm it is the same problem.

[®om (rom1v)]

I am not able to install 32 bits version using my usb key (created, like for my 64bits liveusb, using usb-creator-gtk, but 32 bits beta version doesn't boot).

So I reinstalled the 64 bits version of Maverick beta, it works very fine when I don't "apt-get upgrade". So I will wait the problem is resolved for installing upgrades…

Please let me know.

[®om (rom1v)]

It still happens without upgrades. Sorry, it definitely is an hardware problem.

[Gianfranco Costamagna (costamagnagianfranco)]

I had a really similar problem with maverick...

After upgrading the beta the system come up really ubusable...

Maybe is not an hw problem? (I run MM in a virtualbox machine)

[®om (rom1v)]

@LocutusOfBorg, you're right, indeed it seems to be a software problem.

I reinstalled Ubuntu 10.04 64bits, and everything is ok. When I said "it still happens without upgrades [in 10.10 beta]", I am not sure that no upgrade has been done at all (maybe during installation, I was connected)…

So I think this is a critical bug (I lost my whole data and system, everything was damaged).

[Gianfranco Costamagna (costamagnagianfranco)]

It happened twice in my ubuntu 10.10 beta, but the last time I reinstalled ubuntu didn't happen anymore.

Maybe was a series of partial upgrades...

And BTW it doesn't happen with this kernel http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.35.4-maverick/

(and in my case I'm on a 32bit installation)

[penalvch (penalvch)]

®om, thank you for reporting this and helping make Ubuntu better. Maverick reached EOL on April 2012.
Please see this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We were wondering if this is still an issue in a supported release? If so, can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command in a supported release from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux <replace-with-bug-number>

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]