From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Newbury Subject: Re: drm-next i915 regression? ( was: Re: PCI resources above 4GB) Date: Fri, 13 Apr 2012 15:08:36 +0100 Message-ID: <4F883364.3080601@snewbury.org.uk> References: <1333968563.5678.19.camel@infinity> <4F8467AA.90305@snewbury.org.uk> <4F848357.3060007@snewbury.org.uk> <4F848E10.1090703@snewbury.org.uk> <1334089568.4083.2.camel@Nokia-N900> <4F84A3EC.6030903@snewbury.org.uk> <1334229754.30606.7.camel@Nokia-N900> <1334248841.2910.6.camel@Nokia-N900> <133 4317529.2910.21.camel@Nokia-N900> <4F8814F7.20808@snewbury.org.uk> <4F8820F0.5010607@snewbury.org.uk> <4F88297B.3020200@snewbury.org.uk> <1334325128.2910.24.camel@Nokia-N900> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1334325128.2910.24.camel@Nokia-N900> Sender: linux-pci-owner@vger.kernel.org To: Steven Newbury Cc: Yinghai Lu , "Barnes, Jesse" , Dave Airlie , Bjorn Helgaas , linux-pci@vger.kernel.org, DRI mailing list List-Id: dri-devel@lists.freedesktop.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 13/04/12 14:52, Steven Newbury wrote: > On Fri, 13 Apr 2012, 14:26:19 BST, Steven Newbury > wrote: > >> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 >> >> On 13/04/12 13:49, Steven Newbury wrote: >>> On 13/04/12 12:58, Steven Newbury wrote: >>> >>>>> It's not stable, crashes soon after GMA comes up. (Could be >>>>> unrelated breakage in linus/master? Probably not but I >>>>> will verify.) I noticed the high allocations are occuring >>>>> from the top of 64-bit address-space, whilst /proc/cpuinfo >>>>> shows only 48 bits of virtual addressing. Could that be >>>>> why..? >>>> To reply to myself again, I should have said crashes shortly >>>> after Xorg initialises using the intel driver, in both >>>> cases! I'm building a kernel now without the patch set to see >>>> if it's unrelated. If it still dies I'll try applying your >>>> patch set to a branch without the changes from >>>> linus/master... (should have done that anyway...) >>> >>> Okay, I instead created a branch from an older 3.4-rc1+ kernel >>> tree, running it now, and it seems to be stable. Something >>> perhaps in the newer tree not playing nicely. I'll see if I >>> can bisect it, or at least base of rc2 if that works... (I'm a >>> little wary of crashing the system too much and losing my btrfs >>> filesystem...) >> rc2 is fine as well. Not sure what happened there, I need to be >> more careful about keeping a clean tree to work from. > I'm pretty sure the crash was a from a drm-next regression. I'll > try bisecting it.... Sorry, posted too soon! Almost as I clicked on send it froze again (using rc2 + for-pci-res-alloc ). I had problems with the earlier patches re. X/i915 stability. Strange. I'll see if I can track it down. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk+IM2QACgkQGcb56gMuC63IqACgpvN/bOqt/DWR45Kq00D4T2m0 tGoAn0cSN1eNxiHSF1eIRJgkGT/VmJy4 =/wQF -----END PGP SIGNATURE-----