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Date: Fri, 31 Jul 2015 10:58:44 +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 10:53, 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 :) -- 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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