On Mon, Feb 20, 2017 at 04:43:40PM -0800, Steve Kargl wrote:
> On Tue, Feb 21, 2017 at 12:58:07AM +0100, Mateusz Guzik wrote:
> > On Mon, Feb 20, 2017 at 03:52:24PM -0800, Steve Kargl wrote:
> > > With a kernel and world from r313943 sources (circa
> > > Feb 19, 2017), kldload of either drm2.ko or i915kms.ko
> > > will lock up the system. There is no keyboard response,
> > > screen output, or panic. Just a locked up system.
> > >
> > > A kernel from r313027 and its modules boots fine.
> > > 'kldload drm2.ko' yields the following in /var/log/messages:
> > >
> > There were quite a few invasive changes in this timeframe. Can you
> > please:
> > 1. switch to 313254 and ensure it works
> > 2. apply https://people.freebsd.org/~mjg/patches/complete-locks.diff and
> > check if it breaks
> > If it does not break, revert the patch and bisect the kernel please.
> > Otherwise I'll devise smaller diffs to narrow this down.
> With 1. and 2. the system boots and I can kldload both drm2
> and i915kms. I revert the patch and start bisecting the kernel.
> Thanks for the quick response.
Thanks for testing. Note you may encounter some turbulences along the
road as there were fixups and fixups to fixups to the combined above
Mateusz Guzik <mjguzik gmail.com>
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