Date: Wed, 28 Apr 2010 04:58:25 -0700 From: Randall Stewart <rrs@lakerest.net> To: Rui Paulo <rpaulo@freebsd.org> Cc: freebsd-mips@freebsd.org Subject: Re: SMP support for XLR processors. Message-ID: <B366987E-73FF-4EA7-BECC-1C965E7FD840@lakerest.net> In-Reply-To: <8DA4B46E-7923-4C01-9345-75C7A598C023@freebsd.org> References: <w2z98a59be81004171540t2f0d5193nca2ec9e2540502e2@mail.gmail.com> <6BDB3874-D779-45A6-ABAE-4C331D78A189@lakerest.net> <y2m98a59be81004190657kce2488b0p86a725b1175cb14b@mail.gmail.com> <l2n98a59be81004200252lf1d0a372pfae8ac5f55440e58@mail.gmail.com> <7BEFA3F5-97AE-477C-9DD3-EF1C4B7DCEB0@freebsd.org> <BC57A6F0-4F2E-47F4-92BF-849AD18FC004@freebsd.org> <o2n98a59be81004200349yefc11499n4497544d6dbd9d0b@mail.gmail.com> <C0874E32-D2F2-4A29-B868-CADDE47EB0C3@freebsd.org> <j2q98a59be81004200406xca7ac107o6435c4e9c1b8b81f@mail.gmail.com> <3820374E-010D-40EA-A596-4AF1694B4119@freebsd.org> <r2s98a59be81004261239id979645er957ce9f7bb1c0437@mail.gmail.com> <8DA4B46E-7923-4C01-9345-75C7A598C023@freebsd.org>
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Yeah, There are still lots of issues with the SMP patches... Have you tested without PREEMPTION? Note that I still get a crash without it.. but its centered in an IPI with a spin-lock held to long during a buildworld -j16 R On Apr 28, 2010, at 4:45 AM, Rui Paulo wrote: > On 26 Apr 2010, at 20:39, C. Jayachandran wrote: > >> On Tue, Apr 20, 2010 at 4:42 PM, Rui Paulo <rpaulo@freebsd.org> >> wrote: >>> On 20 Apr 2010, at 12:06, C. Jayachandran wrote: >>>> I'm not seeing the issue here(my output for ref below). The rge >>>> patch >>>> should not really make a difference - but it will be good to try >>>> with >>>> that. The only other difference I can think of between our >>>> configs is >>>> MFS root/NFS root and rge0/rge1 - but none of these should affect >>>> the >>>> message ring threads. Can you send me the config you use? >>> >> ... >>> I use the basic XLR config with some mods: >>> +options PREEMPTION # Enable kernel thread >>> preemption >> ... >> >> As Randall said, this may be the issue, I haven't had much time to >> look at this, since I'm still looking at another issue. Do you still >> have the issue without PREEMPTION? > > Just tested on the most recent HEAD and yes I still have the issue :-( > > Regards, > -- > Rui Paulo > > ------------------------------ Randall Stewart 803-317-4952 (cell) 803-345-0391(direct)
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