Date: Wed, 22 Feb 2017 07:29:08 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: Steve Kargl <sgk@troutmask.apl.washington.edu> Cc: Mateusz Guzik <mjguzik@gmail.com>, freebsd-current@freebsd.org, freebsd-hackers@freebsd.org Subject: Re: drm2, i915kms cause instant lock-up Message-ID: <20170222052908.GL2092@kib.kiev.ua> In-Reply-To: <20170221185511.GA98080@troutmask.apl.washington.edu> References: <20170220235224.GA91194@troutmask.apl.washington.edu> <20170220235807.GC26759@dft-labs.eu> <20170221004340.GA91587@troutmask.apl.washington.edu> <20170221005030.GD26759@dft-labs.eu> <20170221052658.GA93413@troutmask.apl.washington.edu> <20170221185511.GA98080@troutmask.apl.washington.edu>
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On Tue, Feb 21, 2017 at 10:55:11AM -0800, Steve Kargl wrote: > On Mon, Feb 20, 2017 at 09:26:58PM -0800, Steve Kargl wrote: > > > > Well, the good news seems to be that r313254 and older are 'ok'. > > So, something between r313943 and r313254 is triggering a the > > problem. I'm still bisecting, but it might take a day or two. > > > > I've been able to narrow the range down to r313854 to r313943. > If I had to guess, the issue may be related to > > Author: kib > Date: Fri Feb 17 21:08:32 2017 > New Revision: 313898 > URL: https://svnweb.freebsd.org/changeset/base/313898 > > Log: > Merge i386 and amd64 mtrr drivers. > > I won't be able to investigate until later tonight (~ 10 hours from now). >From what I see in other messages, you are using i386 kernel on Core2 class machine, am I right ? Did r313897 worked fine ? r313898 has a bug for i386 architecture, which was fixed in r313934. Could you compile kernel from r313898 sources with r313934 applied on top of it ? I mean, take r313898 and apply the changes from r313934 either manually or with patch, but not take any further changes from svn after r313898. If such kernel does not boot, I will provide further instructions.
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