Re: Linux v2.6.16-rc5

[Mathieu Chouquet-Stringer <mchouque@free.fr>]

torvalds@osdl.org (Linus Torvalds) writes:
> Have I missed anything? Holler. And please keep reminding about any 
> regressions since 2.6.15.

As reported yesterday [1], the generic irq framework for alpha introduced
in commit 0595bf3bca9d9932a05b06dd438f40f01d27cd33 kills my box under
fairly heavy disk usage. I got a md raid 0 array stripped accross 3 scsi
disks and any kind of relatively intensive IOs (like md5sum or sha1sum
against iso files) kill the box immediately; either it panics in
kernel/exit.c:do_exit - the first three "unlikely" - or in
arch/alpha/mm/fault.c:do_page_fault "Unable to handle paging reguest at
some address"...

Reverting it makes the box stable again (as it was under vanilla 2.6.15).

Here's the commit detail:

0595bf3bca9d9932a05b06dd438f40f01d27cd33 is first bad commit
diff-tree 0595bf3bca9d9932a05b06dd438f40f01d27cd33 (from eee45269b0f5979c70bc151c6c2f4e5f4f5ababe)
Author: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Date:   Fri Jan 6 00:12:22 2006 -0800

    [PATCH] Alpha: convert to generic irq framework (alpha part)

    Kconfig tweaks and tons of deletions.

    Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
    Cc: Christoph Hellwig <hch@lst.de>
    Cc: Richard Henderson <rth@twiddle.net>
    Signed-off-by: Andrew Morton <akpm@osdl.org>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>

:040000 040000 ac127f16325bb65941bd38208325ab7821877f52 15d7d4d17a7c8cfb8fe53c29ded31ff9cf287534 M      arch
:040000 040000 287f73cdf371b2b33cc48f1d876005aab29ff3de 29263093ae33ceccd6346b987870367bc8329f0a M      include


[1] Problem on Alpha with "convert to generic irq framework"
Message-Id: <20060304111219.GA10532@localhost>
http://lkml.org/lkml/2006/3/4/31

-- 
Mathieu Chouquet-Stringer