[Pkg-chromium-maint] Bug#821463: chromium: frequent SEGV_MAPERR

[kakwa]

Package: chromium
Version: 50.0.2661.75-1
Severity: important

Dear Maintainer,

While surfing with chromium on gmail or youtube, after following a few
links, chromium throw an "Aw Snap!" error.
(the number of links followed is not always the same, but it happens
rapidly, like ~5 clicks).

I get the following trace in stderr:

[4390:4420:0418/214831:ERROR:zygote_host_impl_linux.cc(162)] Failed to adjust OOM score of renderer with pid 4496: Permission denied
[4390:4420:0418/214835:ERROR:zygote_host_impl_linux.cc(162)] Failed to adjust OOM score of renderer with pid 4527: Permission denied
Received signal 11 SEGV_MAPERR 0000002e6800
#0 0x55a04ba10b2e <unknown>
#1 0x55a04ba10ee9 <unknown>
#2 0x7ff34b695d30 <unknown>
#3 0x55a04ed7af26 <unknown>
#4 0x55a04ed7b036 <unknown>
#5 0x55a04fc36076 <unknown>
#6 0x55a04fc21cf1 <unknown>
#7 0x55a04fc21f41 <unknown>
#8 0x55a04fc1db4d <unknown>
#9 0x55a04ba760ad <unknown>
#10 0x55a04ba2df69 <unknown>
#11 0x55a04ba2ea7d <unknown>
#12 0x55a04ba2ed48 <unknown>
#13 0x55a04ba307e9 <unknown>
#14 0x55a04ba44878 <unknown>
#15 0x55a04ba2d205 <unknown>
#16 0x55a04ba5c79a <unknown>
#17 0x55a04ba58dad <unknown>
#18 0x7ff34b68c454 start_thread
#19 0x7ff34b3c9ecd clone
  r8: 00007ff3200049e0  r9: 000055a04c406ad0 r10: 00007ff320004b20 r11: 0000000000000000
 r12: 00007ff320005ed8 r13: 000055a05103b702 r14: 00007ff31daf9320 r15: 000055a050944d71
  di: 00000000002e6800  si: 000055a05103b702  bp: 0000000000000000  bx: 00000000002e6800
  dx: 0000000000000000  ax: 0000000000000000  cx: 0000000000000000  sp: 00007ff31daf9260
  ip: 000055a04ed7af26 efl: 0000000000010246 cgf: 0000000000000033 erf: 0000000000000004
 trp: 000000000000000e msk: 0000000000000000 cr2: 00000000002e6800
[end of stack trace]

The issue seems related to:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=821154

But it affects more than just video.

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

Kernel: Linux 4.5.0-1-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           1.1.0-1
ii  libatk1.0-0          2.20.0-1
ii  libc6                2.22-6
ii  libcairo2            1.14.6-1+b1
ii  libcups2             2.1.3-5
ii  libdbus-1-3          1.10.8-1
ii  libexpat1            2.1.1-1
ii  libfontconfig1       2.11.0-6.4
ii  libfreetype6         2.6.3-3+b1
ii  libgcc1              1:5.3.1-14
ii  libgdk-pixbuf2.0-0   2.34.0-1
ii  libglib2.0-0         2.48.0-1
ii  libgnome-keyring0    3.12.0-1+b1
ii  libgtk2.0-0          2.24.30-1.1
ii  libjpeg62-turbo      1:1.4.2-2
ii  libnspr4             2:4.12-2
ii  libnss3              2:3.23-2
ii  libnss3-1d           2:3.23-2
ii  libpango-1.0-0       1.40.1-1
ii  libpangocairo-1.0-0  1.40.1-1
ii  libpci3              1:3.3.1-1.1
ii  libspeechd2          0.8-7
ii  libstdc++6           5.3.1-14
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               2:1.7.6-1
ii  libxml2              2.9.3+dfsg1-1
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

Versions of packages chromium recommends:
ii  fonts-liberation  1.07.4-1

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

-- no debconf information