From: Philippe Gerum <rpm@xenomai.org>
To: Bernhard Walle <bernhard.walle@domain.hid>
Cc: adeos-main@gna.org
Subject: Re: [Adeos-main] CONFIG_PREEMPT doesn't work with ADEOS
Date: Tue, 18 Apr 2006 15:01:36 +0200 [thread overview]
Message-ID: <4444E330.60709@domain.hid> (raw)
In-Reply-To: <20060418131428.31f735e9@domain.hid>
Bernhard Walle wrote:
> Hello,
>
> I have a kernel 2.6.15.6 with
> http://download.gna.org/adeos/patches/v2.6/i386/adeos-ipipe-2.6.15-i386-1.2-03.patch
> patch. In this configuration, CONFIG_PREEMPT doesn't work any more,
> i.e. the kernel is not preempted.
>
> With the kernel without ADEOS patch, it works fine. A test program is
> at http://www.bwalle.de/temp/kern-preempt.tar.bz2.
>
> Do you know what's wrong?
>
>
Ok, bug confirmed and spotted. It's an x86 specific issue that impacts
Adeos back in the pre-Ipipe times. An updated patch will follow once I
made sure that the fix does not cause any regression, especially on SMP
systems. Thanks for reporting this way, the quality of your testcase
made a real difference to locate the issue rapidly.
--
Philippe.
next prev parent reply other threads:[~2006-04-18 13:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-18 11:14 [Adeos-main] CONFIG_PREEMPT doesn't work with ADEOS Bernhard Walle
2006-04-18 11:44 ` Philippe Gerum
2006-04-18 11:50 ` Philippe Gerum
2006-04-18 12:05 ` Jan Kiszka
2006-04-18 12:16 ` Philippe Gerum
2006-04-18 12:54 ` Philippe Gerum
2006-04-18 13:01 ` Philippe Gerum [this message]
2006-04-18 14:00 ` Philippe Gerum
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