Re: Linux 2.4 -> 2.6 migration

[Alex Zarochentsev <zam@namesys.com>]

On Fri, Nov 07, 2003 at 02:39:06PM +0100, Sebastian Kaps wrote:
> Hi!
> 
> Is there something concerning ReiserFS I should know when migrating from
> Linux 2.4 to Linux 2.6?
> 
> I'm asking because a few days ago I downloaded and compiled 2.6.0-test9
> just for curiosity. It booted fine and I went back to my "standard"
> kernel, which was 2.4.23-pre5 at that time. Right after booting the
> 2.4.x kernel, I got lots of the following messages in my logs:
> ,----
> | kernel: ide2(33,3):vs-4080: reiserfs_free_block: free_block (2103:463529)[dev:blocknr]: bit already cleared

test-9/reiser3 works fine for us.  Your problems could be due to a bug in
updated IDE driver, for example.  Do other filesystems (like ext2) work? 

Can you send a .config (from 2.6.0-test-9) and describe your hardware configuration
to the reiserfs-dev@namesys.com mailing list?

> `----
> The block number always differed. Gladly, "reiserfsck --rebuild-tree"
> helped to cure that, but there were lots of unusable files after that
> (e.g. parts of files overwritten with parts of other files).

I think that reiserfsck --rebuild-tree trusts the bitmap content, which is not
good for your case.  Vitaly will answer better.

> 
> Is this suppose to happen? What caused this error?
> 
> Another thing: I had to "hard reboot" my system a few times in the last
> few months. I also experienced that sometimes parts of files were
> overwritten with 0x00s or parts of other files. Can someone explain to
> me how this can happen?
> 
> -- 
> Ciao, Sebastian

-- 
Alex.