fs errors on thinkpad R31

fs errors on thinkpad R31

[Bernd Schubert]

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Hi,

this is the second time within 14 days after which I had to run reiserfsck on 
my IBM Thinkpad R31.
This time I lost a directory with 49 files (it seems it were only kernel 
modules, so probably not so important data).

I have attached the error messages from the /var/log/messages file.

System: Thinkpad R31; vanilla linux-2.4.20 + cpufreq kernel


Any ideas whats going wrong? 


Thanks in advance,
	Bernd


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Re: fs errors on thinkpad R31

[Oleg Drokin]

Hello!

On Thu, Jan 09, 2003 at 11:20:48PM +0100, Bernd Schubert wrote:

> this is the second time within 14 days after which I had to run reiserfsck on 
> my IBM Thinkpad R31.
> This time I lost a directory with 49 files (it seems it were only kernel 
> modules, so probably not so important data).
> I have attached the error messages from the /var/log/messages file.

Hm. Looks like some blocks have unexpected contents.
Do you often uncleanly turn-off/run out of battaries prior to
corruption?
Try to disable write caching in your harddrive then. (hdparm -W0 /dev/hda)

Bye,
    Oleg

Re: fs errors on thinkpad R31

[Bernd Schubert]

On Friday 10 January 2003 15:32, Oleg Drokin wrote:
> Hello!
>
> On Thu, Jan 09, 2003 at 11:20:48PM +0100, Bernd Schubert wrote:
> > this is the second time within 14 days after which I had to run
> > reiserfsck on my IBM Thinkpad R31.
> > This time I lost a directory with 49 files (it seems it were only kernel
> > modules, so probably not so important data).
> > I have attached the error messages from the /var/log/messages file.
>
> Hm. Looks like some blocks have unexpected contents.
> Do you often uncleanly turn-off/run out of battaries prior to
> corruption?
> Try to disable write caching in your harddrive then. (hdparm -W0 /dev/hda)
>

Hello Oleg,

thanks for your help. When I had to run reiserfsck for the very first time, I 
thought this as well, since there where some unexpected crashes in December 
and I run one day before the first fsck out of batteries. But ever since this 
fsck, nothing like this happend again (I found the reason for the crashes and 
never needed to run on accu since this time).

Should I enable reiserfs-debugging within the kernel configuration ? Any other 
possibilities to debug this ? 

Thanks,
	Bernd

Re: fs errors on thinkpad R31

[Oleg Drokin]

Hello!

On Sun, Nov 10, 2002 at 03:55:51PM +0100, Bernd Schubert wrote:
> > > this is the second time within 14 days after which I had to run
> > > reiserfsck on my IBM Thinkpad R31.
> > > This time I lost a directory with 49 files (it seems it were only kernel
> > > modules, so probably not so important data).
> > > I have attached the error messages from the /var/log/messages file.
> > Hm. Looks like some blocks have unexpected contents.
> > Do you often uncleanly turn-off/run out of battaries prior to
> > corruption?
> > Try to disable write caching in your harddrive then. (hdparm -W0 /dev/hda)
> thanks for your help. When I had to run reiserfsck for the very first time, I 
> thought this as well, since there where some unexpected crashes in December 
> and I run one day before the first fsck out of batteries. But ever since this 
> fsck, nothing like this happend again (I found the reason for the crashes and 
> never needed to run on accu since this time).

Still blocks are filled with some garbage it seems.
Do you suspend/resume your laptop? May be that corrupts memory or something?

> Should I enable reiserfs-debugging within the kernel configuration ? Any other 
> possibilities to debug this ? 

Probably first you need to find out usage pattern that leads to corruption.

Bye,
    Oleg