Re: [S+Q 01/16] [PATCH] ipc/sem.c: Bugfix for semop() not reportingsuccessful operation

From: Manfred Spraul
Date: Wed Jun 30 2010 - 15:38:06 EST

Hi Andrew,

On 06/29/2010 09:08 PM, Andrew Morton wrote:
On Tue, 29 Jun 2010 10:42:42 -0500 (CDT)
Christoph Lameter<cl@xxxxxxxxxxxxxxxxxxxx> wrote:

This is a patch from Manfred. Required to make 2.6.35-rc3 work.

My current version of the patch is below.

I believe that Luca has still seen problems with this patch applied so
its current status is "stuck, awaiting developments".

Is that a correct determination?

I would propose that you forward a patch to Linus - either the one you have in your tree or the v2 that I've just posted.
With stock 2.6.35-rc3, my semtimedop() stress tests produces an oops or an invalid return value (i.e.:semtimedop() returns with "1") within a fraction of a second.

With either of the patches applied, my test apps show the expected behavior.


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