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SubjectRe: Re: 2.4.17 oops - ext2/ext3 fs corruption (?)
Date
> On Sun, 6 Jan 2002, Daniel Phillips wrote:
>
> > On January 6, 2002 12:31 am, Eric wrote:
> > > On Sat, 5 Jan 2002, Andrew Morton wrote:
> > > > Eric wrote:
> > > > >
> > > > > I seem to be having a reoccurring problem with my Red Hat 7.2 system
> > > > > running kernel 2.4.17. Four times now, I have seen the kernel generate an
> > > > > oops. After the oops, I find that one of file systems is no longer sane.
> > > > > The effect that I see is a Segmentation Fault when things like ls or du
> > > > > some directory (the directory is never the same). Also, when the system
> > > > > is going down for a reboot, it is unable to umount the file system. The
> > > > > umount command returns a "bad lseek" error.
> > > >
> > > > Everything here points at failing hardware. Probably memory errors.
> > > > People say that memtest86 is good at detecting these things. Another
> > > > way to verify this is to move the same setup onto a different computer...
> > >
> > > I ran memtest86 on the system and let it complete 4 passes before I
> > > stopped it. It found no errors. Unfortunately, I do not have another
> > > system available to test this on. Are there any other diagnostics I can
> > > run to determine if this is truly a hardware problem?
> >
> > This doesn't smell like hardware to me, since your two backtraces are identical:
>
> In an attempt to try a get more information about what is going on, I
> tried compiling a new kernel with the options CONFIG_DEBUG_KERNEL and
> CONFIG_DEBUG_BUGVERBOSE turned on. However, this seems to have made
> things worse. Now, in about 6-12 hours from boot-up, the system will hang
> completely with no information from the kernel on the console. The only
> way to get out it is to use the reset button on the front of the box.
>
> Is there anything else I can do to try and determine if this is a kernel
> problem? Or at least get more information about what is going on?
>
> Thanks,
>
> Eric

I had the same problem with ext3fs
The problem was when trying to READ from the partition and not when trying to write. That was interesting.
I copied a lot of files to my ext3 partition (5 gig) and when I tried to copy it back to the other partition(vfat) there were some input-output errors and i got all the data lost, I had to format the ext3 partition and install linux again.
So, the problem does not seem to be hardware problem.
I am traveling now, not in my house, so I can't test it one more time, and when I'll be back probably there will be a fixed kernel, but if not, I'll test it again anyway.

Marco

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