Bug 1729852 - MOZ_CrashPrintf
Summary: MOZ_CrashPrintf
Keywords:
Status: CLOSED INSUFFICIENT_DATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: firefox
Version: 8.0
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: rc
: 8.0
Assignee: Martin Stransky
QA Contact: Desktop QE
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-07-15 06:40 UTC by Jiri Prajzner
Modified: 2019-10-01 12:30 UTC (History)
0 users

Fixed In Version:
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Last Closed: 2019-10-01 12:10:40 UTC
Type: Bug
Target Upstream Version:

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Description Jiri Prajzner 2019-07-15 06:40:20 UTC 
This bug has been created based on an anonymous crash report requested by the package maintainer.

Report URL: http://faf.lab.eng.brq.redhat.com/faf/reports/bthash/3a97787986f001f243b66e2309fd6d4fc6c8687b/
Comment 1 Jiri Prajzner 2019-09-30 06:58:55 UTC 
http://faf.lab.eng.brq.redhat.com/faf/reports/13599 - there are 18 crashes, each one with full env, tests and stack traces. 
what is missing please?
Comment 2 Martin Stransky 2019-09-30 07:04:16 UTC 
(In reply to Jiri Prajzner from comment #1)
> http://faf.lab.eng.brq.redhat.com/faf/reports/13599 - there are 18 crashes,
> each one with full env, tests and stack traces. 
> what is missing please?

Is there any reproduction steps I can use to reproduce the issue?
Comment 3 Jiri Prajzner 2019-09-30 07:13:48 UTC 
look into the gz archive, there're 'backtrace' and 'cmdline' files with commands that could potentially reproduce the issue.
for example in firefox-68.0.1-3.el8_0-ccpp-2019-09-13-09-34-08.472860-30074:
backtrace: Core was generated by `/usr/lib64/firefox/firefox -contentproc -childID 2 -isForBrowser -prefsLen 278'
cmdline: /usr/lib64/firefox/firefox -contentproc -childID 2 -isForBrowser -prefsLen 278 -prefMapSize 176557 -parentBuildID 20190729092507 -greomni /usr/lib64/firefox/omni.ja -appomni /usr/lib64/firefox/browser/omni.ja -appdir /usr/lib64/firefox/browser 29907 tab
Comment 4 Martin Stransky 2019-10-01 12:10:40 UTC 
(In reply to Jiri Prajzner from comment #3)
> look into the gz archive, there're 'backtrace' and 'cmdline' files with
> commands that could potentially reproduce the issue.
> for example in firefox-68.0.1-3.el8_0-ccpp-2019-09-13-09-34-08.472860-30074:
> backtrace: Core was generated by `/usr/lib64/firefox/firefox -contentproc
> -childID 2 -isForBrowser -prefsLen 278'
> cmdline: /usr/lib64/firefox/firefox -contentproc -childID 2 -isForBrowser
> -prefsLen 278 -prefMapSize 176557 -parentBuildID 20190729092507 -greomni
> /usr/lib64/firefox/omni.ja -appomni /usr/lib64/firefox/browser/omni.ja
> -appdir /usr/lib64/firefox/browser 29907 tab

You can try yourself that this does nothing. It's a child process execution from main firefox process and can't be issued from command line.
Without clear reproduction steps (go to page xyz, do something there) we can't fix that.
Comment 5 Jiri Prajzner 2019-10-01 12:30:55 UTC 
if i execute /usr/lib64/firefox/firefox -contentproc -childID 2 -isForBrowser -prefsLen 278 -prefMapSize 176557 -parentBuildID 20190729092507 -greomni /usr/lib64/firefox/omni.ja -appomni /usr/lib64/firefox/browser/omni.ja
it dumps core. 
i suppose the "-appdir /usr/lib64/firefox/browser 29907 tab" points to a tab that caused the original core dump, i'm not sure if you can find that in the core / stack trace by the tab id 29907 and if it says what url was loaded...
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