reiserfsck segmentation fault

reiserfsck segmentation fault

[Linux PCH EDV]

Hello all,

I just encountered a major problem with one of my
reiserfs-filesystems. I had to reinstall my SuSE 8.0-Linux over an
existing one (which had some problems that have nothing to do with the
problem described here). I told the setup not to format anything
rather leave all filesystems as they were and mount the root
filesystem "/" to the same partition as before. The setup wouldn't let
me enter a mountpoint for the important "data partition" (hdb3) formatted
with reiserfs, so I simply left it alone.
Everything seemed to be ok afterwards, after a reboot my old data
partition had been mounted under "/data2". I changed that by editing
"/etc/fstab". There I changed the mountpount from "/data2" to
"/server2" which was the mountpoint the partition had before the installation.
While applying the change to fstab with yast2 the system froze.
Therefore I had to reboot.
After that reboot, the system wouldn't recognize the partition
anymore. reiserfsck told me that it couldn't find any
reiserfs-partition on hdb3. So I rebuilt the superblock with
reiserfsck. I hope that I chose the right "version" from the ones that
reiserfsck offered me, at least I remembered that it used to be a
3.5-partition.
Now I try to use reiserfsck for rebuilding the tree.
I enter "reiserfsck --rebuild-tree /dev/hdb3"
It gives me a segmentation fault after saying
"Loading on-disk bitmap ..ok, 16828156 blocks marked used".
I am using reiserfsck 3.x.1b.
The harddisk is a Maxtor 4G160J8 with 160 gigabyte storage space. It
is supported by both the kernel (2.4.18) and the BIOS.

Can anyone help?

Thanks

Peter

Re: reiserfsck segmentation fault

[Oleg Drokin]

Hello!

On Thu, Aug 22, 2002 at 01:10:21PM +0200, Linux PCH EDV wrote:

> I am using reiserfsck 3.x.1b.

First you should try reiserfsprogs 3.6.3 from our ftp site.
If that does not work, we are all ears.

Bye,
    Oleg

Re[2]: reiserfsck segmentation fault

[Peter Herklotz]

Hello Oleg,

thanks for the advice, reiserfsck (3.6.3) is working heavily now - lets hope
it can rebuild the content of the partition. But another question
arises for me: As I pointed out in my first posting, I had to do a
"reiserfsck --rebuild-sb" first before the partition was even recognized
as an reiserfs one. As I said, I wasn't sure which version of the fs I
had. How dangerous is it to choose a wrong "3.5.x"-version at that
point? The only thing that I am sure of is that it wasn't a 3.6
version.

Thanks

Peter

Re: reiserfsck segmentation fault

[Oleg Drokin]

Hello!

On Thu, Aug 22, 2002 at 01:56:32PM +0200, Peter Herklotz wrote:
> thanks for the advice, reiserfsck (3.6.3) is working heavily now - lets hope
> it can rebuild the content of the partition. But another question
> arises for me: As I pointed out in my first posting, I had to do a
> "reiserfsck --rebuild-sb" first before the partition was even recognized
> as an reiserfs one. As I said, I wasn't sure which version of the fs I
> had. How dangerous is it to choose a wrong "3.5.x"-version at that
> point? The only thing that I am sure of is that it wasn't a 3.6
> version.

wrong 3.5 version is dangerous because they have different bitmaps layout.

Bye,
    Oleg