From: Zlatko Calusic <zlatko.calusic@iskon.hr>
To: Hugh Dickins <hugh@veritas.com>
Cc: Andrew Morton <akpm@digeo.com>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Re: Shared memory shmat/dt not working well in 2.5.x
Date: Tue, 01 Oct 2002 15:37:28 +0200 [thread overview]
Message-ID: <dnk7l2cmav.fsf@magla.zg.iskon.hr> (raw)
In-Reply-To: <Pine.LNX.4.44.0210011401360.991-100000@localhost.localdomain> (Hugh Dickins's message of "Tue, 1 Oct 2002 14:09:22 +0100 (BST)")
Hugh Dickins <hugh@veritas.com> writes:
> On Tue, 1 Oct 2002, Zlatko Calusic wrote:
>>
>> Still having problems with Oracle on 2.5.x (it can't even be started),
>> I devoted some time trying to pinpoint where the problem is. Reading
>> many traces of Oracle, and rebooting a dozen times, I finally found
>> that the culprit is weird behaviour of shmat/shmdt functions in 2.5,
>> when combined with mprotect() calls. I wrote a simple test app
>> (attached) and I'm also appending output of it below (running on
>> 2.4.19 & 2.5.39 kernels, see the difference).
>
> Exemplary bug report! Many thanks for taking so much trouble to
> reproduce the problem. Patch below (against 2.5.39) should fix it:
> I'll send Linus and Andrew when I can get hold of a 2.5.40 tree.
Oh, dear sir, but you are the one who solved it eventually. :)
Anyway, I'm glad it worked well and I was helpful.
Looking forward to test/bench Oracle w/ patch applied (and report
further bugs in ext3, fsync() and friends ;)).
Keep up the good work!
--
Zlatko
next prev parent reply other threads:[~2002-10-01 13:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-01 9:52 Zlatko Calusic
2002-10-01 13:07 ` Alessandro Suardi
2002-10-01 13:09 ` [PATCH] " Hugh Dickins
2002-10-01 13:28 ` Alessandro Suardi
2002-10-01 13:46 ` Zlatko Calusic
2002-10-01 14:51 ` Alessandro Suardi
2002-10-01 14:59 ` Zlatko Calusic
2002-10-02 18:45 ` Zlatko Calusic
2002-10-08 11:22 ` Zlatko Calusic
2002-10-08 11:38 ` Duncan Sands
2002-10-08 15:10 ` Zlatko Calusic
2002-10-08 15:25 ` Duncan Sands
2002-10-01 13:37 ` Zlatko Calusic [this message]
2002-10-01 15:32 ` [PATCH] Oracle startup split_vma fix Hugh Dickins
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