Date: Wed, 20 Mar 2013 18:36:10 -0700 From: David Wolfskill <david@catwhisker.org> To: Konstantin Belousov <kostikbel@gmail.com> Cc: current@freebsd.org Subject: Re: Silent reboots in head @r248550 starting xdm with x11/nvidia-driver Message-ID: <20130321013610.GB42912@albert.catwhisker.org> In-Reply-To: <20130320200857.GN3794@kib.kiev.ua> References: <20130320160056.GG32811@albert.catwhisker.org> <20130320171340.GE3794@kib.kiev.ua> <20130320173759.GK32811@albert.catwhisker.org> <20130320174458.GG3794@kib.kiev.ua> <20130320180239.GN32811@albert.catwhisker.org> <20130320200857.GN3794@kib.kiev.ua>
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--A6N2fC+uXW/VQSAv Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 20, 2013 at 10:08:57PM +0200, Konstantin Belousov wrote: > ... > I looked at the nvidia sources to check that the driver does not use > the interfaces which KBI was changed, and this is indeed the case, as > expected. >=20 > I must admit that I have no idea why buffer cache changes could affect > nvidia driver, and with no input on the panic (I hope that it is panic, > and not a reset) have no idea even to speculate. So firewire cable is > probably the must. >=20 > Note that I split that import of the work into the series of commits. > The split was done to ease the reading of the chunks, and individual > commits were not functionally tested. Still, you might try to do the > bisect. I elected to go ahead and try the bisection; here are my results: r248493M/248493: OK r248550M/248551: resets on X startup with nvidia.ko r248521M/248521: resets on X startup with nvidia.ko r248507M/248507: OK r248508M/248508: resets on X startup with nvidia.ko r248493M/248493 was my last working point (built yesterday morning). r248550M/248551 was what failed for me this morning. r248521M/248521 was a convenient mid-point between the above two. r248507M/248507 was the next natural test-point. r248508M/248508 was a guess on my part -- I would normally have gone to r248514, but since I had previously noted that r248508 touched some things that nvidia-driver uses, I thought that test might be worthwhile. I am, however, mildly concerned that no one else appears to be reporting similar symptoms (though I have it on good authority that someone is about to test). Peace, david --=20 David H. Wolfskill david@catwhisker.org Taliban: Evil men with guns afraid of truth from a 14-year old girl. See http://www.catwhisker.org/~david/publickey.gpg for my public key. --A6N2fC+uXW/VQSAv Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iEYEARECAAYFAlFKZAgACgkQmprOCmdXAD1gnwCfflzaiQx4WWuLzpsz1vLQKYGY cE4An1SqDuvyg8z7gNGB5KkRYQZRD3pg =S9Gp -----END PGP SIGNATURE----- --A6N2fC+uXW/VQSAv--
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