Debian Bug report logs - #804901
chromium: Chromium 47 breaks the GPU acceleration

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Paride Legovini <pl@ninthfloor.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: chromium: Chromium 47 breaks the GPU acceleration

Date: Thu, 12 Nov 2015 19:43:05 +0100

[Message part 1 (text/plain, inline)]

Package: chromium
Version: 47.0.2526.16-1
Severity: important

Dear Maintainer,

I tried to install chromium 47 from experimental, but I found out that
it completely breaks the GPU accelleration. This might have something to
do with this entry in the Debian ChangeLog:

* Enable accelerated video decoding (closes: #793815).

I noticed the issue because chromium got very slow. In chrome://gpu the
Graphics Feature Status flags are all bad (see attachment), while they're fine
in chromium 46. I also get this output from chromium 47 that I don't get
with chromium 46:

[26442:26442:1112/193230:FATAL:sandbox_seccomp_bpf_linux.cc(203)] Check failed: policy->PreSandboxHook(). 
#0 0x55e0d82e62de <unknown>
#1 0x55e0d82fbae0 <unknown>
#2 0x55e0dbbdc538 <unknown>
#3 0x55e0dbbdb88c <unknown>
#4 0x55e0dbbdb161 <unknown>
#5 0x55e0dbaa358c <unknown>
#6 0x55e0dbaa2c09 <unknown>
#7 0x55e0d82b94ef <unknown>
#8 0x55e0d82b8610 <unknown>
#9 0x55e0d7e1b088 ChromeMain
#10 0x7fb27f71db45 __libc_start_main
#11 0x55e0d7e1af2f <unknown>

Received signal 6
#0 0x55e0d82e5db8 <unknown>
#1 0x7fb27fab48d0 <unknown>
#2 0x7fb27f731107 gsignal
#3 0x7fb27f7324e8 abort
#4 0x55e0d82e52a2 <unknown>
#5 0x55e0d82fbd77 <unknown>
#6 0x55e0dbbdc538 <unknown>
#7 0x55e0dbbdb88c <unknown>
#8 0x55e0dbbdb161 <unknown>
#9 0x55e0dbaa358c <unknown>
#10 0x55e0dbaa2c09 <unknown>
#11 0x55e0d82b94ef <unknown>
#12 0x55e0d82b8610 <unknown>
#13 0x55e0d7e1b088 ChromeMain
#14 0x7fb27f71db45 __libc_start_main
#15 0x55e0d7e1af2f <unknown>
  r8: ffffd5e29a30d380  r9: ffffd5e29a30d370 r10: 0000000000000008 r11: 0000000000000202
 r12: 00007ffe4488c1e8 r13: 000055e0deb8d050 r14: 00007ffe4488c1f8 r15: 00007fb280251260
  di: 000000000000674a  si: 000000000000674a  bp: 00007ffe4488c1e8  bx: 0000000000000000
  dx: 0000000000000006  ax: 0000000000000000  cx: 00007fb27f731107  sp: 00007ffe4488bc18
  ip: 00007fb27f731107 efl: 0000000000000202 cgf: 7465000000000033 erf: 0000000000000000
 trp: 0000000000000000 msk: 0000000000000000 cr2: 0000000000000000
[end of stack trace]


Downgrating to chromium 46 solves the issue.
I hope this can be fixed before chromium 47 hits Sid.

Thank you,

Paride


-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.2.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages chromium depends on:
ii  libasound2            1.0.29-1
ii  libatk1.0-0           2.18.0-1
ii  libavcodec-ffmpeg56   7:2.8.1-1+b1
ii  libavformat-ffmpeg56  7:2.8.1-1+b1
ii  libavutil-ffmpeg54    7:2.8.1-1+b1
ii  libc6                 2.19-22
ii  libcairo2             1.14.4-1
ii  libcups2              2.1.0-6
ii  libdbus-1-3           1.10.2-1
ii  libexpat1             2.1.0-7
ii  libfontconfig1        2.11.0-6.3
ii  libfreetype6          2.6-2
ii  libgcc1               1:5.2.1-23
ii  libgdk-pixbuf2.0-0    2.32.2-1
ii  libglib2.0-0          2.46.2-1
ii  libgnome-keyring0     3.12.0-1+b1
ii  libgtk2.0-0           2.24.28-1
ii  libjpeg62-turbo       1:1.4.1-2
ii  libnspr4              2:4.10.10-1
ii  libnss3               2:3.20.1-1
ii  libpango-1.0-0        1.38.1-1
ii  libpangocairo-1.0-0   1.38.1-1
ii  libpci3               1:3.3.1-1
ii  libspeechd2           0.8-7
pn  libsrtp1              <none>
ii  libstdc++6            5.2.1-23
ii  libx11-6              2:1.6.3-1
ii  libxcomposite1        1:0.4.4-1
ii  libxcursor1           1:1.1.14-1+b1
ii  libxdamage1           1:1.1.4-2+b1
ii  libxext6              2:1.3.3-1
ii  libxfixes3            1:5.0.1-2+b2
ii  libxi6                2:1.7.5-1
ii  libxml2               2.9.2+zdfsg1-4
ii  libxrandr2            2:1.5.0-1
ii  libxrender1           1:0.9.9-2
ii  libxslt1.1            1.1.28-2.1
ii  libxss1               1:1.2.2-1
ii  libxtst6              2:1.2.2-1+b1
ii  x11-utils             7.7+3
ii  xdg-utils             1.1.1-1

chromium recommends no packages.

Versions of packages chromium suggests:
pn  chromium-l10n  <none>

-- no debconf information

[chrome___gpu.pdf (application/pdf, attachment)]

Message #10 received at 804901@bugs.debian.org (full text, mbox, reply):

From: Philipp Hagemeister <phihag@phihag.de>

To: 804901@bugs.debian.org

Subject: Re: chromium: Chromium 47 breaks the GPU acceleration

Date: Mon, 7 Dec 2015 16:04:11 +0100

[Message part 1 (text/plain, inline)]

I see the exact same problem - chromium becomes totally unusable (and
the user nauseated); there is a delay of nearly a second after every
keypress. Rendering about:blank takes half a second; all websites are
visibly rendered from top to bottom, all with a completely new profile.

This is on a Thinkpad T440s with Intel Haswell-ULT GPU.

Even after installing chromium-dbg, the stacktrace does not become any
more helpful.

Google's Chrome is not affected, it works fine.

Starting chromium with --disable-seccomp-filter-sandbox fixes the
problem at the expense of security.

[signature.asc (application/pgp-signature, attachment)]

Message #19 received at 804901@bugs.debian.org (full text, mbox, reply):

From: Gedalya <gedalya@gedalya.net>

To: 804901@bugs.debian.org

Subject: Re: chromium: Chromium 47 breaks the GPU acceleration

Date: Mon, 7 Dec 2015 17:55:44 -0500

Thinkpad T430, Ivy Bridge i5-3230M.

I get the following messages:

[19549:19577:1207/174928:ERROR:nss_util.cc(839)] After loading Root 
Certs, loaded==false: NSS error code: -8018
[19596:19596:1207/174928:FATAL:sandbox_seccomp_bpf_linux.cc(203)] Check 
failed: policy->PreSandboxHook().

(The latter one apparently relevant to this bug) followed by a trace.

--disable-seccomp-filter-sandbox does work around the issue.

Performance in my case is not as slow the previous commenter describes 
but CPU usage is a lot higher.

On my desktop, it's an AMD OLAND GPU using free drivers (radeonsi), and 
I get no issue at all (also not the NSS message FWIW). Both machines 
running up-to-date stretch with chromium 47.0.2526.73-1

Message #24 received at 804901@bugs.debian.org (full text, mbox, reply):

From: Gedalya <gedalya@gedalya.net>

To: 804901@bugs.debian.org

Subject: Re: chromium: Chromium 47 breaks the GPU acceleration

Date: Mon, 7 Dec 2015 18:10:19 -0500

Tried another machine. Reproduced with an nvidia card, using nouveau

Message #29 received at 804901@bugs.debian.org (full text, mbox, reply):

From: Vincent Bernat <bernat@debian.org>

To: Gedalya <gedalya@gedalya.net>

Cc: 804901@bugs.debian.org

Subject: Re: [Pkg-chromium-maint] Bug#804901: chromium: Chromium 47 breaks the GPU acceleration

Date: Tue, 08 Dec 2015 08:37:03 +0100

[Message part 1 (text/plain, inline)]

 ❦  7 décembre 2015 17:55 -0500, Gedalya <gedalya@gedalya.net> :

> I get the following messages:
>
> [19549:19577:1207/174928:ERROR:nss_util.cc(839)] After loading Root
> Certs, loaded==false: NSS error code: -8018
> [19596:19596:1207/174928:FATAL:sandbox_seccomp_bpf_linux.cc(203)]
> Check failed: policy->PreSandboxHook().
>
> (The latter one apparently relevant to this bug) followed by a trace.
>
> --disable-seccomp-filter-sandbox does work around the issue.
>
> Performance in my case is not as slow the previous commenter describes
> but CPU usage is a lot higher.
>
> On my desktop, it's an AMD OLAND GPU using free drivers (radeonsi),
> and I get no issue at all (also not the NSS message FWIW). Both
> machines running up-to-date stretch with chromium 47.0.2526.73-1

Got the same with an Intel GPU but I didn't notice the problem until the
bug report as my CPU is beefy enough. Intel HD Graphics 4600 in my
case.

In chrome://gpu, before the workaround:

Graphics Feature Status
Canvas: Software only, hardware acceleration unavailable
Flash: Software only, hardware acceleration unavailable
Flash Stage3D: Software only, hardware acceleration unavailable
Flash Stage3D Baseline profile: Software only, hardware acceleration unavailable
Compositing: Software only, hardware acceleration unavailable
Multiple Raster Threads: Unavailable
Rasterization: Software only, hardware acceleration unavailable
Video Decode: Software only, hardware acceleration unavailable
Video Encode: Software only, hardware acceleration unavailable
WebGL: Unavailable

Driver Bug Workarounds
clear_uniforms_before_first_program_use
count_all_in_varyings_packing
disable_post_sub_buffers_for_onscreen_surfaces
scalarize_vec_and_mat_constructor_args
use_virtualized_gl_contexts

Problems Detected
GPU process was unable to boot: GPU access is disabled in chrome://settings.
Disabled Features: all
EXT_occlusion_query appears to be buggy with Intel GPUs on Linux
Clear uniforms before first program use on all platforms: 124764, 349137
Applied Workarounds: clear_uniforms_before_first_program_use
Mesa drivers in Linux handle varyings without static use incorrectly: 333885
Applied Workarounds: count_all_in_varyings_packing
Disable partial swaps on linux drivers: 339493
Applied Workarounds: disable_post_sub_buffers_for_onscreen_surfaces
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
MakeCurrent is slow on Linux
Applied Workarounds: use_virtualized_gl_contexts

In chrome://gpu, after the workaround:

Graphics Feature Status
Canvas: Hardware accelerated
Flash: Hardware accelerated
Flash Stage3D: Hardware accelerated
Flash Stage3D Baseline profile: Hardware accelerated
Compositing: Hardware accelerated
Multiple Raster Threads: Enabled
Rasterization: Software only. Hardware acceleration disabled
Video Decode: Hardware accelerated
Video Encode: Hardware accelerated
WebGL: Hardware accelerated

Driver Bug Workarounds
clear_uniforms_before_first_program_use
count_all_in_varyings_packing
disable_post_sub_buffers_for_onscreen_surfaces
scalarize_vec_and_mat_constructor_args
use_virtualized_gl_contexts

Problems Detected
EXT_occlusion_query appears to be buggy with Intel GPUs on Linux
Clear uniforms before first program use on all platforms: 124764, 349137
Applied Workarounds: clear_uniforms_before_first_program_use
Mesa drivers in Linux handle varyings without static use incorrectly: 333885
Applied Workarounds: count_all_in_varyings_packing
Disable partial swaps on linux drivers: 339493
Applied Workarounds: disable_post_sub_buffers_for_onscreen_surfaces
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
MakeCurrent is slow on Linux
Applied Workarounds: use_virtualized_gl_contexts
Accelerated rasterization has been disabled, either via about:flags or command line.
Disabled Features: rasterization
-- 
Choose variable names that won't be confused.
            - The Elements of Programming Style (Kernighan & Plauger)

[signature.asc (application/pgp-signature, inline)]

Message #34 received at 804901-close@bugs.debian.org (full text, mbox, reply):

From: Michael Gilbert <mgilbert@debian.org>

To: 804901-close@bugs.debian.org

Subject: Bug#804901: fixed in chromium-browser 47.0.2526.80-1

Date: Sun, 13 Dec 2015 04:07:49 +0000

Source: chromium-browser
Source-Version: 47.0.2526.80-1

We believe that the bug you reported is fixed in the latest version of
chromium-browser, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 804901@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Michael Gilbert <mgilbert@debian.org> (supplier of updated chromium-browser package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Sat, 12 Dec 2015 22:37:45 +0000
Source: chromium-browser
Binary: chromium chromium-dbg chromium-l10n chromedriver
Architecture: source
Version: 47.0.2526.80-1
Distribution: unstable
Urgency: medium
Maintainer: Debian Chromium Maintainers <pkg-chromium-maint@lists.alioth.debian.org>
Changed-By: Michael Gilbert <mgilbert@debian.org>
Description:
 chromedriver - web browser - WebDriver support
 chromium   - web browser
 chromium-dbg - web browser - debugging symbols
 chromium-l10n - web browser - language packs
Closes: 803806 804901
Changes:
 chromium-browser (47.0.2526.80-1) unstable; urgency=medium
 .
   * New upstream stable release:
     - Multiple vulnerabilities fixed in libv8 4.7.80.23.
     - CVE-2015-6788: Type confusion in extensions. Credit to anonymous.
     - CVE-2015-6789: Use-after-free in Blink. Credit to cloudfuzzer.
     - CVE-2015-6790: Escaping issue in saved pages. Credit to Inti De
       Ceukelaire.
     - CVE-2015-6791: Various fixes from internal audits, fuzzing and other
       initiatives.
   * Add support for ffmpeg 2.9 (closes: #803806).
   * Disable accelerated video decoding (closes: #804901).
Checksums-Sha1:
 496541a0558f7e949a49a01e790739d3c3a4bcba 3962 chromium-browser_47.0.2526.80-1.dsc
 17dae424ca8c84c9a89dc5eadf7e73d487180af4 1235513236 chromium-browser_47.0.2526.80.orig.tar.xz
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 7d071bda587259ea702d6fe8459b24f983fc9a83ae615fef460ac327941ac168 117172 chromium-browser_47.0.2526.80-1.debian.tar.xz
Files:
 83ffb8260980d2818800306f738b331e 3962 web optional chromium-browser_47.0.2526.80-1.dsc
 5186b99ae3880666617829c6757c1c9d 1235513236 web optional chromium-browser_47.0.2526.80.orig.tar.xz
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