Package: thunderbird
Version: 1:52.8.0-1
Severity: important

Hi,

I use thunderbird seldomly (i.e. I got the popup about migrating icedove
profiles only today), so I have no idea with which this started to
happen. But when I now start thunderbird on my Thinkpad X250, X freezes
immediately. The mouse and Ctrl-Alt-F1 still works, but I can't control
my window manager (i3) anymore nor does the currently focussed shell
(where I started thunderbird) react to any keypress. For example the
clock in my i3bar which is updating every second, stopped, too.

I have to kill X to get back into a usable state.

This is reproducible. I tried it about four times. (The first time I
even rebooted the laptop hard by powering it off as I didn't notice that
I can still switch to a text console.)

I have no idea why this happens. The only thing I saw before the freeze
was that thunderbird emitted this error message in the shell where I
started it:

  Error: Access was denied while trying to open files in your profile
  directory.

I though couldn't find any such file using e.g. "find ~ -not -readable"
or "find ~ -not -user `id -un`". But I do have apparmor active, so it
might be related to that.

Actually I found some related messages in the dmesg output

[  111.046491] audit: type=1400 audit(1529769721.595:112): apparmor="DENIED" 
operation="open" profile="thunderbird" 
name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=5346 comm="thunderbird" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[  111.046520] audit: type=1400 audit(1529769721.595:113): apparmor="DENIED" 
operation="open" profile="thunderbird" 
name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=5346 comm="thunderbird" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[  111.046578] audit: type=1400 audit(1529769721.595:114): apparmor="DENIED" 
operation="open" profile="thunderbird" 
name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=5346 comm="thunderbird" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[  111.046608] audit: type=1400 audit(1529769721.595:115): apparmor="DENIED" 
operation="open" profile="thunderbird" 
name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=5346 comm="thunderbird" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[  111.050583] audit: type=1400 audit(1529769721.599:116): apparmor="DENIED" 
operation="open" profile="thunderbird" 
name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=5346 comm="thunderbird" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[  111.050672] audit: type=1400 audit(1529769721.599:117): apparmor="DENIED" 
operation="open" profile="thunderbird" 
name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=5346 comm="thunderbird" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[  111.071629] audit: type=1400 audit(1529769721.619:118): apparmor="DENIED" 
operation="mkdir" profile="thunderbird" 
name="/run/user/1000/.unburden-abe/cache/thunderbird/" pid=5299 
comm="thunderbird" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
[  111.517719] audit: type=1400 audit(1529769722.067:119): apparmor="DENIED" 
operation="mknod" profile="thunderbird" 
name="/run/user/1000/.unburden-abe/cache/fontconfig/2e755eb509a594ba7adde982574983b5-le64.cache-7.TMP-yAAa7a"
 pid=5299 comm="thunderbird" requested_mask="c" denied_mask="c" fsuid=1000 
ouid=1000
[ 2214.053670] audit: type=1400 audit(1529771824.595:124): apparmor="DENIED" 
operation="open" profile="thunderbird" 
name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=9409 comm="thunderbird" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[ 2214.053707] audit: type=1400 audit(1529771824.595:125): apparmor="DENIED" 
operation="open" profile="thunderbird" 
name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=9409 comm="thunderbird" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[ 2214.053768] audit: type=1400 audit(1529771824.595:126): apparmor="DENIED" 
operation="open" profile="thunderbird" 
name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=9409 comm="thunderbird" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[ 2214.053804] audit: type=1400 audit(1529771824.595:127): apparmor="DENIED" 
operation="open" profile="thunderbird" 
name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=9409 comm="thunderbird" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[ 2214.056597] audit: type=1400 audit(1529771824.595:128): apparmor="DENIED" 
operation="open" profile="thunderbird" 
name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=9409 comm="thunderbird" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[ 2214.057319] audit: type=1400 audit(1529771824.595:129): apparmor="DENIED" 
operation="open" profile="thunderbird" 
name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=9409 comm="thunderbird" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[ 2214.059413] audit: type=1400 audit(1529771824.599:130): apparmor="DENIED" 
operation="mkdir" profile="thunderbird" 
name="/run/user/1000/.unburden-abe/cache/thunderbird/" pid=9394 
comm="thunderbird" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
[ 2214.245650] audit: type=1400 audit(1529771824.787:131): apparmor="DENIED" 
operation="mknod" profile="thunderbird" 
name="/run/user/1000/.unburden-abe/cache/fontconfig/2e755eb509a594ba7adde982574983b5-le64.cache-7.TMP-tid84T"
 pid=9394 comm="thunderbird" requested_mask="c" denied_mask="c" fsuid=1000 
ouid=1000

This is likely from two tries to start thunderbird.

I also checked /var/log/Xorg.0.log as well as ~/.xsession-errors, but I
found nothing which seems related or in the relevant time frame.

Ah, and Firefox ESR (well, actually Conkeror with Firefox ESR's
rendering engine) starts up fine.

P.S.: Feel free to reassign this bug report or to raise the
severity. (Unless noone else experiences this issue, it might be lowered
as well since I don't use thunderbird often on that machine and I just
started it up to test some IMAP server.) And if you have an idea which
kind of information could help you to further narrow down the cause,
feel free to ask for those details.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (980, 'unstable-debug'), (600, 'testing'), 
(111, 'buildd-unstable'), (111, 'buildd-experimental'), (110, 'experimental'), 
(105, 'experimental-debug')
Architecture: amd64 (x86_64)

Kernel: Linux 4.15.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8 
(charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages thunderbird depends on:
ii  debianutils               4.8.6
ii  fontconfig                2.13.0-5
ii  libatk1.0-0               2.28.1-1
ii  libc6                     2.27-3
ii  libcairo-gobject2         1.15.10-3
ii  libcairo2                 1.15.10-3
ii  libdbus-1-3               1.12.8-3
ii  libdbus-glib-1-2          0.110-2
ii  libevent-2.1-6            2.1.8-stable-4
ii  libffi6                   3.2.1-8
ii  libfontconfig1            2.13.0-5
ii  libfreetype6              2.8.1-2
ii  libfribidi0               0.19.7-2
ii  libgcc1                   1:8.1.0-8
ii  libgdk-pixbuf2.0-0        2.36.11-2
ii  libglib2.0-0              2.56.1-2
ii  libgtk-3-0                3.22.30-1
ii  libhunspell-1.6-0         1.6.2-1+b1
ii  libpango-1.0-0            1.42.1-1
ii  libpangocairo-1.0-0       1.42.1-1
ii  libpangoft2-1.0-0         1.42.1-1
ii  libpixman-1-0             0.34.0-2
ii  libstartup-notification0  0.12-5
ii  libstdc++6                8.1.0-8
ii  libvpx5                   1.7.0-3
ii  libx11-6                  2:1.6.5-1
ii  libx11-xcb1               2:1.6.5-1
ii  libxcb-shm0               1.13-1
ii  libxcb1                   1.13-1
ii  libxcomposite1            1:0.4.4-2
ii  libxdamage1               1:1.1.4-3
ii  libxext6                  2:1.3.3-1+b2
ii  libxfixes3                1:5.0.3-1
ii  libxrender1               1:0.9.10-1
ii  libxt6                    1:1.1.5-1
ii  psmisc                    23.1-1+b1
ii  x11-utils                 7.7+4
ii  zlib1g                    1:1.2.11.dfsg-1

Versions of packages thunderbird recommends:
ii  hunspell-de-ch [hunspell-dictionary]     20161207-5
ii  hunspell-en-ca [hunspell-dictionary]     1:2018.04.16-1
ii  hunspell-en-gb [hunspell-dictionary]     1:6.0.3-3
ii  lightning                                1:52.8.0-1
ii  myspell-de-de-1901 [myspell-dictionary]  1:2-33

Versions of packages thunderbird suggests:
ii  apparmor          2.12-4
ii  fonts-lyx         2.3.0-2
ii  libgssapi-krb5-2  1.16-2

-- no debconf information

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