[Bug 13037] reiserfs panic (device null superblock)

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http://bugzilla.kernel.org/show_bug.cgi?id=13037





--- Comment #5 from Pawel Zawora <pzawora@xxxxxxxxx>  2009-07-02 17:33:59 ---
bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=13037
>
>
>
>
>
> --- Comment #4 from Jeff Mahoney <jeffm@xxxxxxxx>  2009-07-02 15:00:56 ---
> So the problem exists on 2.6.28.9 and not on 2.6.28?
/look at
Description from  Pawel Zawora 2009-04-07 11:38:17/

[...]

On 2.6.25.4 works stable. 
Upgrade to 2.6.28.7 and 2.6.28.9 causes kernel panic[...]



> That's strange since the
> only reiserfs change is this one:
>
> --- a/fs/reiserfs/inode.c
> +++ b/fs/reiserfs/inode.c
> @@ -2556,7 +2556,7 @@ static int reiserfs_write_begin(struct file *file,
>         }
>
>         index = pos >> PAGE_CACHE_SHIFT;
> -       page = __grab_cache_page(mapping, index);
> +       page = grab_cache_page_write_begin(mapping, index, flags);
>         if (!page)
>                 return -ENOMEM;
>         *pagep = page;
>
> I'm surprised that reiserfsck doesn't come up with anything. This is a problem
> where it's seeing an invalid bit on disk. Either that or memory corruption.
>
>   
/look at
Description from  Pawel Zawora 2009-04-07 11:38:17/

[...]

We tested:
1. Completely different hardware [...]

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