From: Dan Kegel <dank@kegel.com>
To: Andrew Morton <akpm@osdl.org>
Cc: suparna@in.ibm.com, daniel@osdl.org, linux-aio@kvack.org,
linux-kernel@vger.kernel.org, pbadari@us.ibm.com,
Adrian Bunk <bunk@fs.tum.de>
Subject: Re: Patch for Retry based AIO-DIO (Was AIO and DIO testing on 2.6.0-test7-mm1)
Date: Thu, 23 Oct 2003 16:22:37 -0700 [thread overview]
Message-ID: <3F9862BD.9010708@kegel.com> (raw)
In-Reply-To: <20031023155937.41b0eeda.akpm@osdl.org>
Andrew Morton wrote:
> Suparna Bhattacharya <suparna@in.ibm.com> wrote:
>
>>It turns out that backing out gcc-Os.patch (on RH 9) or switching
>>to a system with an older compiler version made those errors go away.
>
>
> Ho hum, so we have our answer.
>
> Adrian, how do you feel about slotting this under CONFIG_EMBEDDED?
I dunno about Adrian, but I'd rest easier either way
if we knew which optimization in -Os causes the problem,
and whether this is a compiler bug.
http://gcc.gnu.org/onlinedocs/gcc-3.3.1/gcc/Optimize-Options.html#Optimize%20Options
has a nice list of the optimizations performed by -O2, but
the list for -Os is a bit fuzzy, darn it.
- Dan
p.s. For the curious, the url of that patch seems to be
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.0-test8/2.6.0-test8-mm1/broken-out/gcc-Os.patch
--
Dan Kegel
http://www.kegel.com
http://counter.li.org/cgi-bin/runscript/display-person.cgi?user=78045
prev parent reply other threads:[~2003-10-23 23:19 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-17 23:12 AIO and DIO testing on 2.6.0-test7-mm1 Daniel McNeil
2003-10-18 0:24 ` Andrew Morton
2003-10-20 14:27 ` Suparna Bhattacharya
2003-10-20 23:47 ` Daniel McNeil
2003-10-21 12:11 ` Patch for Retry based AIO-DIO (Was AIO and DIO testing on 2.6.0-test7-mm1) Suparna Bhattacharya
2003-10-23 0:40 ` Daniel McNeil
2003-10-23 10:49 ` Suparna Bhattacharya
2003-10-23 13:50 ` Suparna Bhattacharya
2003-10-23 22:59 ` Andrew Morton
2003-10-23 23:20 ` Patch for Retry based AIO-DIO (Was AIO and DIO testing on2.6.0-test7-mm1) Adrian Bunk
2003-10-23 23:25 ` Andrew Morton
2003-10-23 23:37 ` Patch for Retry based AIO-DIO (Was AIO and DIO testingon2.6.0-test7-mm1) Adrian Bunk
2003-10-23 23:46 ` Andrew Morton
2003-10-24 0:34 ` Patch for Retry based AIO-DIO (Was AIO and DIOtestingon2.6.0-test7-mm1) Adrian Bunk
2003-10-26 11:57 ` Adrian Bunk
2003-10-26 12:08 ` Russell King
2003-10-26 12:17 ` Adrian Bunk
2003-10-26 13:00 ` Russell King
2003-10-23 23:22 ` Dan Kegel [this message]
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