Re: [Jfs-discussion] Deadlock in pdflush

[Alexander S. <20...@us...>]

Hi,

Dave Kleikamp wrote:

> > Here is the sysrq output that shows all blocked processes -- I added another
> > touch process later on just for comparison (it seems to block equally):
> > http://paste.pocoo.org/show/34491/
> > 
> > The kernel is a 2.6.20-15 (feisty). 2.6.22 doesn't seem to work anymore
> > because the IDE controller driver was removed.

> I think it may be the same problem that was fixed by this patch in
> 2.6.22:
> 
> http://git.kernel.org/gitweb.cgi?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=05ec9e26be1f668ccba4ca54d9a4966c6208c611
> 
> You'd either need to rebuild the kernel (or at least jfs.ko) or move up
> to a newer kernel.

Hmm, I guess I will try to rebuild jfs.

> I believe you should be able to get the 2.6.22 kernel working with ide
> drives.  You may have to rename hda* to sda* in /etc/fstab.  Maybe
> someone reading this group has more knowledge about this.

The removal of the old (piix something) driver was indeed related to
these ATA/SCSI shifts in the kernel. But the new replacement does not
seem to recognise any drives or even the controller - the unknown root
volume panic msg only includes an empty list of possible device names.

Kind regards,
Alexander