Bug#856976: repeated total freezes for many seconds

Eduard Bloch edi at gmx.de
Mon Mar 6 20:22:41 UTC 2017


Package: firefox
Version: 52.0~b9-1
Severity: normal
File: mozilla

This is a repost of
https://bugzilla.mozilla.org/show_bug.cgi?id=1343338
Please see there for details.

I could NOT reproduce it with upstream version. The only (short) freeze
it shows is right after session restoring when a new tab is opened.

Debian version, however, hangs again and again. Best way to reproduce it
is opening a page with a few links and then keep opening some of the
links in background with 3rd mouse button (5..10) and then switch
between the tabs while they are loading. One CPU core is loaded all the
time and when switching to the tab, the whole browser freezes. Another
good trigger is opening some form website and start typing into a text
field while the site is still loading.

And then out of blue it starts behaving normal again, normal
responsiveness and CPU load goes down to almost zero. Until the next
time this thing happens which comes quite often.

Regards,
Eduard.

-- Package-specific info:

-- Extensions information
Name: Adblock Plus
Location: ${PROFILE_EXTENSIONS}/{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}.xpi
Status: user-disabled

Name: Application Update Service Helper
Location: ${PROFILE_EXTENSIONS}/aushelper at mozilla.org.xpi
Status: enabled

Name: Copy ShortURL
Location: ${PROFILE_EXTENSIONS}/jid0-ODIKJS9b4IT3H1NYlPKr0NDtLuE at jetpack.xpi
Status: enabled

Name: Default theme
Location: /usr/lib/firefox/browser/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}.xpi
Package: firefox
Status: enabled

Name: Ghostery
Location: ${PROFILE_EXTENSIONS}/firefox at ghostery.com.xpi
Status: enabled

Name: Multi-process staged rollout
Location: ${PROFILE_EXTENSIONS}/e10srollout at mozilla.org.xpi
Status: enabled

Name: NoScript
Location: ${PROFILE_EXTENSIONS}/{73a6fe31-595d-460b-a920-fcc0f8843232}.xpi
Status: enabled

Name: Pocket
Location: ${PROFILE_EXTENSIONS}/firefox at getpocket.com.xpi
Status: enabled

Name: ScrapBook
Location: ${PROFILE_EXTENSIONS}/{53A03D43-5363-4669-8190-99061B2DEBA5}.xpi
Status: enabled

Name: Sitzungs-Manager
Location: ${PROFILE_EXTENSIONS}/{1280606b-2510-4fe0-97ef-9b5a22eafe30}.xpi
Status: enabled

Name: uBlock Origin
Location: ${PROFILE_EXTENSIONS}/uBlock0 at raymondhill.net.xpi
Status: enabled

Name: United States English Spellchecker dictionary
Location: ${PROFILE_EXTENSIONS}/en-US at dictionaries.addons.mozilla.org
Status: enabled

Name: Web Compat
Location: ${PROFILE_EXTENSIONS}/webcompat at mozilla.org.xpi
Status: enabled

-- Plugins information
Name: Shockwave Flash (11.2.202.635)
Location: /usr/lib/flashplugin-nonfree/libflashplayer.so
Status: disabled


-- Addons package information
ii  firefox        52.0~b9-1    amd64        Mozilla Firefox web browser

-- System Information:
Debian Release: 9.0
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.10.0+ (SMP w/4 CPU cores; PREEMPT)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)

Versions of packages firefox depends on:
ii  debianutils               4.8.1
ii  fontconfig                2.11.0-6.7+b1
ii  libatk1.0-0               2.22.0-1
ii  libc6                     2.24-9
ii  libcairo-gobject2         1.14.8-1
ii  libcairo2                 1.14.8-1
ii  libdbus-1-3               1.10.16-1
ii  libdbus-glib-1-2          0.108-2
ii  libevent-2.0-5            2.0.21-stable-3
ii  libffi6                   3.2.1-6
ii  libfontconfig1            2.11.0-6.7+b1
ii  libfreetype6              2.6.3-3+b2
ii  libgcc1                   1:7-20170129-1
ii  libgdk-pixbuf2.0-0        2.36.5-2
ii  libglib2.0-0              2.50.3-1
ii  libgtk-3-0                3.22.8-1
ii  libgtk2.0-0               2.24.31-2
ii  libhunspell-1.4-0         1.4.1-2+b2
ii  libnspr4                  2:4.12-6
ii  libnss3                   2:3.29.1-1
ii  libpango-1.0-0            1.40.3-3
ii  libsqlite3-0              3.16.2-3
ii  libstartup-notification0  0.12-4
ii  libstdc++6                7-20170129-1
ii  libvpx4                   1.6.1-2
ii  libx11-6                  2:1.6.4-3
ii  libx11-xcb1               2:1.6.4-3
ii  libxcb-shm0               1.12-1
ii  libxcb1                   1.12-1
ii  libxcomposite1            1:0.4.4-2
ii  libxdamage1               1:1.1.4-2+b1
ii  libxext6                  2:1.3.3-1
ii  libxfixes3                1:5.0.3-1
ii  libxrender1               1:0.9.10-1
ii  libxt6                    1:1.1.5-1
ii  procps                    2:3.3.12-3
ii  zlib1g                    1:1.2.8.dfsg-5

firefox recommends no packages.

Versions of packages firefox suggests:
ii  fonts-lmodern          2.004.5-3
ii  fonts-stix [otf-stix]  1.1.1-4
ii  libcanberra0           0.30-3
ii  libgssapi-krb5-2       1.15-1
pn  mozplugger             <none>

-- no debconf information

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