[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[SK]

reopened at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1766875

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Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Expired

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[Walter Garcia-Fontes]

@asgard2, open please another bug report with your system information.
Try also to disable all add-ons and see if you see the crash, just in
case it is not caused by an add-on. I was affected by this bug but I
haven't seen this crash for months. This bug report is expired and
nobody will pay attention to it.

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1656065

Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Expired

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[asgard2]

still crashing multiple times a day now ... getting worse :(

-- 
You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1656065

Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Expired

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[SK]

same here with 
firefox 59.0.2+build1-0ubuntu0.16.04.3

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1656065

Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Expired

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[asgard2]

same here with firefox 59.0.2+build1-0ubuntu0.16.04.3

-- 
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https://bugs.launchpad.net/bugs/1656065

Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Expired

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[Jiří Vyskočil]

I seem to have the same problem on Ubuntu 17.10,
firefox-57.0.4+build1-0ubuntu0.17.10.1. I get random crashes about twice
a day. The crash is usually accompaigned by a gnome-shell crash &
restart. I observe no suspicios activity such as eating up too much RAM
or a high CPU usage before the crash.

dmesg contains something like:

[230270.664890] rfkill: input handler enabled
[230276.136725] traps: gnome-shell[2403] general protection ip:7fa4c6c0cde2 
sp:7ffe28542d40 error:0 in libgobject-2.0.so.0.5400.1[7fa4c6bd7000+52000]
[230295.837969] rfkill: input handler disabled
[230308.490256] rfkill: input handler enabled
[230332.394705] Chrome_~dThread[59613]: segfault at 0 ip 7f3389d10e7d sp 
7f3387ffdb10 error 6 in libxul.so[7f3388ec3000+5805000]
[230332.475649] Chrome_~dThread[59369]: segfault at 0 ip 7f7482b10e7d sp 
7f7480dfdb10 error 6
[230332.475652] Chrome_~dThread[67396]: segfault at 0 ip 7f860b910e7d sp 
7f8609bfdb10 error 6
[230332.475656]  in libxul.so[7f7481cc3000+5805000]
[230332.475657]  in libxul.so[7f860aac3000+5805000]
[230341.929151] rfkill: input handler disabled

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You received this bug notification because you are a member of Desktop
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Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Expired

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[Launchpad Bug Tracker]

[Expired for firefox (Ubuntu) because there has been no activity for 60
days.]

** Changed in: firefox (Ubuntu)
   Status: Incomplete => Expired

-- 
You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1656065

Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Expired

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[daniel CURTIS]

** Changed in: firefox (Ubuntu)
   Status: Fix Released => Incomplete

-- 
You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1656065

Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Incomplete

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[daniel CURTIS]

Hello Robie.

Unfortunately, this problem appeared again. Today, I have had Firefox
enabled with just two tabs: YouTube and Google Translate. Suddenly,
system start to slow down, disk diode was... red all the time, mouse
cursor moved slowly etc. After a couple of minutes, I managed to start
terminal and used '$ killall firefox' command, which helped -- system
started to work faster again, clicking e.g. on a file, opened Mousepad
almost immediately, in milliseconds etc.

Log files (such as '/var/log/syslog' or '/var/log/kern.log') contains:

✓ Sep  4 13:46:00 holycross kernel: [10194.439105] Chrome_~dThread[3599]: 
segfault at 0 ip b03f6b24 sp afaa1040 error 6 in libxul.so[afb73000+570f000]
✓ Sep  4 13:46:00 holycross kernel: [10195.084439] Chrome_~dThread[4040]: 
segfault at 0 ip b042fb24 sp afada040 error 6 in libxul.so[afbac000+570f000] 

As we can see, there is a problem in 'libxul.so'. (See bug title.)
Firefox version: 55.0.2 (32-bit), e10s enabled (4. processes; changed
from 2. after update), four addons, no Flash. RAM memory checked with
memtest64 - no problems.

I will keep an eye on this, because of a couple of months without
problem. Maybe it was just an accident?

Thanks, best regards.

-- 
You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1656065

Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Fix Released

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[Robie Basak]

Thanks daniel. Based on your comments, I'll set the bug to Fix Released.

** Changed in: firefox (Ubuntu)
   Status: Incomplete => Fix Released

-- 
You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1656065

Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Fix Released

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[daniel CURTIS]

Hello Robie. I understand your point of view. If it's about "Out of
memory: Kill process" etc. message: I wrote that my computer has only
1GB of RAM memory and there are some plans to add more. (By the way;
this is a computer for various tests.) And I've never wrote, that it's a
problem in Ubuntu. This rather a Firefox issue.

After a clean 16.04 LTS installation, I'd enabled an AppArmor profile,
added some dbus-related rules (please see:
 and
comment #45 etc.), installed three addons. When I noticed these problems
with Chrome_ChildThr (it looks like this is a known issue, see: [2], [3]
in my bug description and so on), I decided to disable flash-player -
but with no luck. In the mean time, there was a couple of Firefox
updates.

However, it seems, that this problem is really solved. I did not noticed
this segfaults since a couple of weeks. For now, I'm using Firefox v54.0
with e10s enabled and everything seems to be OK.

I'm sorry, that I cannot describe it the better way. But, I'd mentioned
every steps I'd done after 16.04 LTS Release installation.

Thanks Robie, best regards.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/1656065

Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Incomplete

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[Robie Basak]

Perhaps Invalid was a little harsh. But, for example Apparmor isn't
enforcing on Firefox by defualt, so it seems that you've done things on
your system that you haven't detailed here. So we don't have fulls steps
to reproduce the problem, so this report is at best Incomplete at the
moment, and it isn't clear that your problem is due to a bug rather than
something as a consequence of how you have your system configured.

I appreciate the problem may be hard to reproduce, but it'd be a start
to describe how you've configured a system such that it _could_ happen.

** Changed in: firefox (Ubuntu)
   Status: Invalid => Incomplete

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You received this bug notification because you are a member of Desktop
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Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Incomplete

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[Robie Basak]

> ● Mar 11 19:46:53 t4 kernel: [31159.076986] Out of memory: Kill
process 4316 (plugin-containe) score 641 or sacrifice child

This looks like an out of memory condition in your system, rather than a
bug in Ubuntu, so I'm setting the bug status to Invalid.

If you believe that this is really a bug, then you may find it helpful
to read "How to report bugs effectively"
http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful
if you would then provide a more complete description of the problem,
explain why you believe this is a bug in Ubuntu rather than a problem
specific to your system, and then change the bug status back to New.

** Changed in: firefox (Ubuntu)
   Status: Confirmed => Invalid

-- 
You received this bug notification because you are a member of Desktop
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Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Invalid

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[Walter Garcia-Fontes]

Ignore my comment #12, just got the Firefox freeze using the
4.10.0-22-generic kernel.

-- 
You received this bug notification because you are a member of Desktop
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Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Confirmed

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[Walter Garcia-Fontes]

Since upgrading the kernel to 4.10.0-22-generic in Ubuntu 17.04 I
haven't seen this bug any more. I think Firefox was also triggering a
general system freeze through a problem in the kernel. See bug #1674838
and the many messages relating it to a firefox freeze.

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Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Confirmed

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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[Desktop-packages] [Bug 1656065] Re: Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 in plugin-container/libxul.so

[daniel CURTIS]

** Summary changed:

- Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip b76df673 sp 
b1efe9f0 error 6 in plugin-container/libxul.so
+ Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp error 6 
in plugin-container/libxul.so

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Title:
  Firefox and plugin-container (Chrome_ChildThr): segfault at 0 ip, sp
  error 6 in plugin-container/libxul.so

Status in firefox package in Ubuntu:
  Confirmed

Bug description:
  Hello.

  Some days ago, Firefox unexpectedly has been closed after a couple of
  hours (mostly viewed: YouTube and some other websites). Next, a dialog
  box related to the Mozilla Crash Reporter appeared - with message,
  that reporter is disabled (which I did earlier via 'about:config' and
  *datareporting.healthreport.service.enabled* key set to _false_) and
  no crash report is available even via 'about:crashes' etc.

  After this situation two entries appeared in the log files: first
  related to the AppArmor and second: plugin-container segfault. By the
  way: in the same time there was an update for flash-plugin available
  (see: 1).

  Anyway, 'LastCrash' file (which can be found in
  ~/.mozilla/firefox/Crash Reports/ directory) contains only:
  1484142985. Just like all the others files in this directory. There
  are also two folders called: 'events' and 'pending'. But they are
  completely empty. However, system log files, such as
  '/var/log/kern.log' or '/var/log/syslog', contains an interesting
  entries:

  ● Jan 11 14:56:25 t4 kernel: [ 4161.295639] type=1400
  audit(1484142985.517:46): apparmor="DENIED" operation="open"
  parent=2818 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2818/task/" pid=3253 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 11 14:56:25 t4 kernel: [ 4161.540727] Chrome_ChildThr[2890]:
  segfault at 0 ip b76df673 sp b1efe9f0 error 6 in plugin-
  container[b76d8000+42000]

  As we know, thanks to the plugin-container, plugins are separated from
  the browser process, making it more stable, right? So now if a plugin
  crashes, Firefox should remains unharmed. It looks like this is a
  known problem (see: 2, 3).

  By the way; on Moday, 16 January, Firefox has been closed again - no
  action from my side. Log files contain the same entries as above:

  ● Jan 16 16:39:35 t4 kernel: [14373.711834] type=1400
  audit(1484581175.931:48): apparmor="DENIED" operation="open"
  parent=2532 profile="/usr/lib/firefox/firefox{,*[^s][^h]}"
  name="/proc/2532/task/" pid=3389 comm="firefox" requested_mask="r"
  denied_mask="r" fsuid=1000 ouid=1000

  ● Jan 16 16:39:36 t4 kernel: [14373.934394] Chrome_ChildThr[3041]:
  segfault at 0 ip b76f8673 sp b1efe9f0 error 6 in plugin-
  container[b76f1000+42000]

  Anyway, after adding these two rules to the Firefox profile,
  everything seems to be OK and there is not DENIED message for
  "/proc/*/task/" entry anymore (so the first issue is solved):

  owner @{PROC}/[0-9]*/task/ r,
  owner @{PROC}/[0-9]*/task/* r,

  NOTE: This problem occurs when adobe-flash plugin is not activated and
  is permanently disabled and also when is used/enabled. Here are some
  informations about versions etc.:

  ● Firefox: 50.1.0
  ● Flash: 24.0.0.194ubuntu0.12.04.1
  ● Linux: 3.2.0-120-generic-pae (3.2.79) i686
  ● AppArmor: 2.7.102-0ubuntu3.10
  ● Release: 12.04.5 LTS (via `lsb_release -a` command)

  Best regards.
  _
  [1] https://lists.ubuntu.com/archives/precise-changes/2017-January/026047.html
  [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1205199
  [3] https://bugzilla.redhat.com/show_bug.cgi?id=1253086

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1656065/+subscriptions

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