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Message-ID: <55BB4D82.8070605@nexus-software.ie> Date: Fri, 31 Jul 2015 11:27:14 +0100 From: Bryan O'Donoghue <pure.logic@...us-software.ie> To: Peter Hurley <peter@...leysoftware.com>, Timo Aaltonen <tjaalton@...ian.org> CC: Emil Velikov <emil.l.velikov@...il.com>, Ilia Mirkin <imirkin@...m.mit.edu>, Maarten Lankhorst <maarten.lankhorst@...onical.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>, Ben Skeggs <bskeggs@...hat.com> Subject: Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple times On 31/07/15 10:58, Bryan O'Donoghue wrote: > On 31/07/15 10:53, Bryan O'Donoghue wrote: >> On 31/07/15 01:03, Bryan O'Donoghue wrote: >>> On 30/07/15 22:45, Peter Hurley wrote: >>>> [ +cc Debian maintainer ] >>>> >>>> On 07/30/2015 11:26 AM, Emil Velikov wrote: >>>>> On 30 July 2015 at 16:02, Ilia Mirkin <imirkin@...m.mit.edu> wrote: >>>>>> On Thu, Jul 30, 2015 at 10:56 AM, Bryan O'Donoghue >>>>>> <pure.logic@...us-software.ie> wrote: >>>>>>> On 30/07/15 15:52, Bryan O'Donoghue wrote: >>>>>>>> >>>>>>>> On 30/07/15 15:49, Peter Hurley wrote: >>>>>>>>> >>>>>>>>> On 07/30/2015 10:12 AM, Ilia Mirkin wrote: >>>>>>>>>> >>>>>>>>>> Is this happening with libdrm 2.4.60? If so, that's a known >>>>>>>>>> (user-side) issue and should be fixed by using any version but >>>>>>>>>> that >>>>>>>>>> one. >>>>>>>>> >>>>>>>>> >>>>>>>>> What's the freedesktop bugzilla # for reference? >>>>>>>>> >>>>>>>>> Regards, >>>>>>>>> Peter Hurley >>>>>>>> >>>>>>>> >>>>>>>> I believe it's this one >>>>>>>> >>>>>>>> https://bugs.freedesktop.org/show_bug.cgi?id=89842#c19 >>>>>>>> >>>>>>> >>>>>>> Not really a world of choice on ubuntu to fix it though... >>>>>>> >>>>>>> deckard@...eko:~/Development/projectara$ apt-show-versions libdrm2 >>>>>>> libdrm2:amd64/trusty-updates 2.4.60-2~ubuntu14.04.1 uptodate >>>>>>> libdrm2:i386/trusty-updates 2.4.60-2~ubuntu14.04.1 uptodate >>>>>>> >>>>>>> :( >>>>>> >>>>>> That's unfortunate. I know next to nothing about debian/ubuntu or how >>>>>> they do versions or how to even build packages for them. But they're >>>>>> big distros, presumably they have support teams of some sort, perhaps >>>>>> they can help you. >>>>>> >>>>>> Assuming that switching away does resolve the issue for you, perhaps >>>>>> you can also recommend that they avoid shipping that version, or >>>>>> include this nouveau fix in it: >>>>>> >>>>>> http://cgit.freedesktop.org/mesa/drm/commit/?id=812e8fe6ce46d733c30207ee26c788c61f546294 >>>>>> >>>>>> >>>>>> >>>>>> >>>>> Fwiw debian has been tracking this as #789759, and they are shipping >>>>> 2.4.62 which includes the fix. >>>> >>>> Unfortunately the LTS version of Ubuntu (trusty) was updated to 2.4.60 >>>> several days ago without this fix. >>>> >>>> I repackaged libdrm 2.4.60 with only the bug fix above and confirm the >>>> patch above fixes the observed behavior in freedesktop bug# 89842/ >>>> debian bug# 789759. >>>> >>>> I pushed the repackage to Launchpad PPA @ ppa:phurley/libdrm >>>> >>>> Hopefully the Debian maintainer grabs this fix and updates the official >>>> distribution version soon. >>>> >>>> Regards, >>>> Peter Hurley >>> >>> Yep. >>> >>> Dropping down to 2.4.56-1~ubuntu2 definitely removes the >>> >>> nouveau E[chrome[2737]] multiple instances of buffer 33 on validation >>> list >>> nouveau E[chrome[2737]] validate_init >>> nouveau E[chrome[2737]] validate: -22 >>> nouveau E[chrome[2737]] multiple instances of buffer 18 on validation >>> list >>> nouveau E[chrome[2737]] validate_init >>> nouveau E[chrome[2737]] validate: -22 >>> nouveau E[ PFIFO][0000:01:00.0] PFIFO: read fault at >>> 0x0003e21000 [PAGE_NOT_PRESENT] from (unknown enum >>> 0x00000000)/GPC0/(unknown enum 0x0000000f) on channel 0x007f80c000 >>> [unknown] >>> >>> and hard lock-up of X. I'll update these guys with the fix >>> >>> http://tinyurl.com/orvbzf3 >> >> Hmm. >> >> Interesting - I spoke way too soon on that. >> >> Left my machine up overnight and lo and behold now that I do a dmesg I >> see... >> >> nouveau E[chrome[2870]] multiple instances of buffer 16 on validation >> list >> nouveau E[chrome[2870]] multiple instances of buffer 24 on validation >> list >> nouveau E[chrome[2870]] multiple instances of buffer 167 on validation >> list >> nouveau E[chrome[2870]] multiple instances of buffer 251 on validation >> list >> nouveau E[chrome[2870]] multiple instances of buffer 248 on validation >> list >> nouveau E[chrome[2870]] multiple instances of buffer 249 on validation >> list >> nouveau E[chrome[2870]] multiple instances of buffer 230 on validation >> list >> nouveau E[chrome[2870]] multiple instances of buffer 253 on validation >> list >> nouveau E[chrome[2870]] multiple instances of buffer 255 on validation >> list >> nouveau E[chrome[2870]] multiple instances of buffer 230 on validation >> list >> nouveau E[chrome[2870]] multiple instances of buffer 257 on validation >> list >> nouveau E[chrome[2870]] multiple instances of buffer 230 on validation >> list >> >> deckard@...eko:~$ dpkg -s libdrm2 >> Package: libdrm2 >> Status: install ok installed >> Priority: optional >> Section: libs >> Installed-Size: 106 >> Maintainer: Ubuntu X-SWAT <ubuntu-x@...ts.ubuntu.com> >> Architecture: amd64 >> Multi-Arch: same >> Source: libdrm >> Version: 2.4.56-1~ubuntu2 >> Depends: libc6 (>= 2.17) >> Pre-Depends: multiarch-support >> Description: Userspace interface to kernel DRM services -- runtime >> This library implements the userspace interface to the kernel DRM >> services. DRM stands for "Direct Rendering Manager", which is the >> kernelspace portion of the "Direct Rendering Infrastructure" (DRI). >> The DRI is currently used on Linux to provide hardware-accelerated >> OpenGL drivers. >> . >> This package provides the runtime environment for libdrm. >> Orig-Maintainer: Debian X Strike Force <debian-x@...ts.debian.org> >> >> deckard@...eko:~$ uname -a >> Linux aineko 4.2.0-rc4+ #50 SMP Thu Jul 30 01:22:01 IST 2015 x86_64 >> x86_64 x86_64 GNU/Linux >> >> Please note - this machine has the fix I proposed in the original patch >> applied so X is not locking up when the multiple instances message >> happens. >> >> In any case to answer the original question - I don't believe switching >> away from 2.4.60 will resolve this issue > > 2.40.6 I mean :) > ah no... 2.4.60 is right... Yes so Ilia - I've switched out 2.4.60 as per your suggestion to 2.4.56 (getting the version numbers right :) ) and it's still definitely giving me the multiple instances message. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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