Date: Fri, 09 Jul 2004 13:11:46 -0500 From: Eric Anderson <anderson@centtech.com> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: Native preemption is the culprit [was Re: today's CURRENT lockups] Message-ID: <40EEDFE2.10908@centtech.com> In-Reply-To: <200407091346.39021.jhb@FreeBSD.org> References: <20040705184940.GA2651@tybalt.greiner.local> <200407091315.16899.jhb@FreeBSD.org> <40EED38D.9010903@alumni.rice.edu> <200407091346.39021.jhb@FreeBSD.org>
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John Baldwin wrote: >On Friday 09 July 2004 01:19 pm, Jon Noack wrote: > > >>On 07/09/04 12:15, John Baldwin wrote: >> >> >>>My test machine is not a true SMP machine either, just HTT. It has been >>>running a -j 256 worldloop overnight with no problems, so I committed a >>>slightly modified version of the patch yesterday. >>> >>> >>Did you test with a UP kernel? After your latest commit I have been >>experiencing regular hard locks on my pre-HTT P4 machine. Backing out >>rev. 1.114 of sched_ule.c fixes it. See my previous message (Re: >>FreeBSD keeps hanging......): >>http://docs.freebsd.org/cgi/mid.cgi?40EECC49.3070501 >> >> > >No, it's running an SMP kernel. I have seen one hard lockup on a UP kernel on >my laptop when trying to use xmms in KDE while using ULE. > > > Just for a point of reference, I updated yesterday (first time in about 45 days), and now I'm seeing lockups too.. I'm running a UP kernel, with 4BSD scheduler.. Eric -- ------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Talk sense to a fool and he calls you foolish. ------------------------------------------------------------------
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