Date: Wed, 17 Aug 2011 08:31:56 +0100 From: Anton Shterenlikht <mexas@bristol.ac.uk> To: Marcel Moolenaar <marcel@xcllnt.net> Cc: freebsd-current@freebsd.org, Anton Shterenlikht <mexas@bristol.ac.uk>, freebsd-ia64@freebsd.org Subject: Re: make test under lang/perl5.14 causes panic: blockable sleep lock (sleep mutex) process lock @ /usr/src/sys/ia64/ia64/trap.c:562 Message-ID: <20110817073156.GB27340@mech-cluster241.men.bris.ac.uk> In-Reply-To: <3CB781B2-7064-4832-A652-82DC0CB7D077@xcllnt.net> References: <20110812141904.GA1683@mech-cluster241.men.bris.ac.uk> <EF42D70E-16E7-49F6-9EA6-D18FDC96A2F4@xcllnt.net> <20110815173451.GA29502@mech-cluster241.men.bris.ac.uk> <20110816081248.GB37207@mech-cluster241.men.bris.ac.uk> <3CB781B2-7064-4832-A652-82DC0CB7D077@xcllnt.net>
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On Tue, Aug 16, 2011 at 04:49:44PM -0700, Marcel Moolenaar wrote: > > On Aug 16, 2011, at 1:12 AM, Anton Shterenlikht wrote: > > > On Mon, Aug 15, 2011 at 06:34:51PM +0100, Anton Shterenlikht wrote: > >> On Fri, Aug 12, 2011 at 05:45:55PM -0700, Marcel Moolenaar wrote: > >>> > >>> On Aug 12, 2011, at 7:19 AM, Anton Shterenlikht wrote: > >>> > >>>> On ia64 r221488 > >>> > >>> Please update to at least r223700, as that was a major stability fix. > >> > >> UZI> uname -a > >> FreeBSD mech-as221.men.bris.ac.uk 9.0-BETA1 FreeBSD 9.0-BETA1 #5 r224876: Mon Aug 15 12:06:05 BST 2011 root@mech-as221.men.bris.ac.uk:/usr/obj/usr/src/sys/UZI ia64 > >> UZI> > >> > >> make test run with no panic once (though lots of errors, > >> I should probably let the perl team know), and > >> panicked on the second run: > > Anton, > > Do you have "options PREEMPTON" in your kernel configuration by any > chance? > > The panics you report are the ones I typically get when I enable > PREEMPTION. I haven't found the root cause for this yet. There's > alsp a PR to track this particular issue. Yes, I'm aware of this. This has been the case for over a year. No, I haven't got PREEMPTION on any of my ia64 nodes, e.g.: UZI> grep PREE /root/kernels/UZI #options IPI_PREEMPTION #options PREEMPTION UZI> -- Anton Shterenlikht Room 2.6, Queen's Building Mech Eng Dept Bristol University University Walk, Bristol BS8 1TR, UK Tel: +44 (0)117 331 5944 Fax: +44 (0)117 929 4423
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