lkml.org 
[lkml]   [2005]   [Aug]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.6.13-rc6 Oops with Software RAID, LVM, JFS, NFS
On Fri, Aug 12, 2005 at 12:35:05PM -0500, Phil Dier wrote:
> On Fri, 12 Aug 2005 12:07:21 +1000
> Neil Brown <neilb@cse.unsw.edu.au> wrote:
> > You could possibly put something like
> >
> > struct bio_vec *from;
> > int i;
> > bio_for_each_segment(from, bio, i)
> > BUG_ON(page_zone(from->bv_page)==NULL);
> >
> > in generic_make_requst in drivers/block/ll_rw_blk.c, just before
> > the call to q->make_request_fn.
> > This might trigger the bug early enough to see what is happening.
>
>
> I've got tests running with this code in place, by I/O is so slow now
> I don't think it's going to oops (or if it does, it'll be a while)..
>
> Is there any other info I can collect to help track this down?

Well, while we are slowing things down in the name of debugging..
you might try setting the following debug options in your config:

CONFIG_DEBUG_PAGEALLOC
CONFIG_DEBUG_HIGHMEM
CONFIG_DEBUG_SLAB
CONFIG_FRAME_POINTER

Can anyone think of anything else?

According to the website you don't have these on right now.

Sonny
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-08-12 20:40    [W:0.070 / U:1.940 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site