Date: Wed, 10 Feb 2010 13:28:24 +0530 From: "C. Jayachandran" <c.jayachandran@gmail.com> To: Neel Natu <neelnatu@gmail.com> Cc: freebsd-mips@freebsd.org Subject: Re: Fix for buildworld hang on XLR Message-ID: <98a59be81002092358u1765b9efp640adc8a606a2963@mail.gmail.com> In-Reply-To: <dffe84831002092353l5ad44eb2ufef6e5db697a27f7@mail.gmail.com> References: <98a59be81002092343w74ef718l148f0f6d683285c4@mail.gmail.com> <dffe84831002092353l5ad44eb2ufef6e5db697a27f7@mail.gmail.com>
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On Wed, Feb 10, 2010 at 1:23 PM, Neel Natu <neelnatu@gmail.com> wrote: > On Tue, Feb 9, 2010 at 11:43 PM, C. Jayachandran > <c.jayachandran@gmail.com> wrote: >> Hi Randall, >> >> Looks like the buildworld hang was caused by a bug in the GMAC driver. >> In some cases an additional zero length descriptor was getting added >> to the descriptor list which makes the GMAC go into underrun >> condition. =A0Can you see if this fix works for you? >> >> The patch is at http://sites.google.com/site/cjayachandran/files/rge.c.d= iff >> >> I still get a crash in pmap_enter during buildworld after quite a long >> time. It seems that de-referencing the pte in some cases crashes. I'm >> looking at it. >> > > How much memory do you have installed on your system? Is any of that > memory mapped above 512MB (physical)? It is a 4GB memory system, and there is memory over 512MB. I'm sill new to this pmap subsystem, so will need some to understand this. JC.
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