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

[Paride Legovini]

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
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