Hi

There is a better solution as suggested before in the discussion. Download
2.6.30 from here http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.30/.
I never had a problem after installing mainline. I wont recommend it if you
are using some proprietary drivers from Ubuntu. They may not be supported.
My "/" is not on ext4 though but all other partitons which I used for
storage are on ext4 now and I was having problem with stock jaunty kernel.

On Fri, Jun 19, 2009 at 4:28 PM, Bryan Quigley <email address hidden> wrote:

> I can not recommend strongly enough that you DO NOT follow jagnet's
> advice and upgrade to Karmic to get away from this bug.  Yes the bug
> is fixed in Karmic, but in development releases many many worse bugs
> can be found (especially this early).
>
> Unfortunately, the only truly supported solution has always been to
> use EXT3 (which means reinstall in most cases).
>
> --
> Soft lockups (freezes) when deleting files from ext4 partitions on 2.6.28
> https://bugs.launchpad.net/bugs/330824
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in Ubuntu Release Notes: Fix Released
> Status in “linux” source package in Ubuntu: Fix Released
> Status in linux in Ubuntu Jaunty: In Progress
> Status in linux in Ubuntu Karmic: Fix Released
>
> Bug description:
> [
> Please read *all* previous comments before posting.
>
> Mainline kernels are known to not experience this bug, although in general
> are not supported (i.e., using one is a workaround, but if they break other
> things you're generally out of luck).
>
> Additional "me-too" comments aren't useful, feel free to select the "This
> bug affects me too" option and/or subscribe to this bug instead.
> ]
>
> Binary package hint: linux-image-2.6.28-8-generic
>
> I'm using 8.10 Kubuntu with all updates done on system.
>
> System is a clean installed system with EXT4 formating and using 2.6.8-8
> linux kernel.
>
> System sometimes lock and freeze whole inputs even keyboard or mouse.
> I have closed X and kdm and try to reprocedure same bug in console  ( not
> konsole )
> so i have killed X and kdm.
>
> And try to compile qt-copy in one console and try to svn up on KDE and on
> other console
> i tryto apt-get update    to make system under CPU load. and after a while
> it happens again.
>
> No Keyboard response no harddisc response total freeze.
>
> I have waited a while after freeze and about 4 min later a text appeared on
> screen saying :
>
> BUG: soft locking  - CPU#0 stuck for 61s!   [uic: 5356]
>
> after waiting about 4 more minutes a newer but same text appeared unter
> this message :
>
> BUG: soft locking  - CPU#0 stuck for 61s!   [uic: 5356]
> BUG: soft locking  - CPU#0 stuck for 61s!   [uic: 5356]
>
>
> There isn't any error records on /etc/log/messages releated on hardware
> while around freezing/locking times
>
> And for information : Sometimes i have seen that i'm getting messages like
> disc is full but
> I'm sure that it isn't. Because df shows me there are more than 7 Gb
> freespace. Not always getting this error.
> if a file shows this error while i'm updating it i'm deleting it and
> downloading a bigger file system won't interrupts me
> like saying disk is full. I think it is releated to Ext4.
>
> But i'm not sure these 2 bugs releated or not.
>
> Thanks
>



-- 
pritam