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Bug 1429837

Summary: SIGSEGV in mozilla::gfx::Matrix4x4Typed on ppc
Product: Red Hat Enterprise Linux 7 Reporter: Tomas Pelka <tpelka>
Component: firefoxAssignee: Martin Stransky <stransky>
Status: CLOSED WONTFIX QA Contact: Desktop QE <desktop-qa-list>
Severity: medium Docs Contact: Mark Flitter <mflitter>
Priority: unspecified    
Version: 7.3CC: jhorak, mboisver, stransky
Target Milestone: rcKeywords: Regression
Target Release: ---   
Hardware: ppc   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Known Issue
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-05-12 11:08:19 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
startup crash bt none

Description Tomas Pelka 2017-03-07 09:15:54 UTC
Created attachment 1260729 [details]
startup crash bt

Description of problem:
Program received signal SIGSEGV, Segmentation fault.
0x0cfa9754 in unsigned int mozilla::gfx::Matrix4x4Typed<mozilla::gfx::UnknownUnits, mozilla::gfx::UnknownUnits>::TransformAndClipRect<float>(mozilla::gfx::RectTyped<mozilla::gfx::UnknownUnits, float> const&, mozilla::gfx::RectTyped<mozilla::gfx::UnknownUnits, float> const&, mozilla::gfx::PointTyped<mozilla::gfx::UnknownUnits, float>*) const ()
   from /usr/lib/firefox/libxul.so

right after start

Version-Release number of selected component (if applicable):
firefox-52.0-4.el7_3


How reproducible:
100%

Steps to Reproduce:
1. run ff on ppc64
2.
3.

Actual results:


Expected results:


Additional info:

Comment 2 Martin Stransky 2017-03-07 09:34:22 UTC
That's ppc, 32-bit, not ppc64 build. See the gdb line:
Starting program: /usr/lib/firefox/firefox

Comment 3 Martin Stransky 2017-03-07 09:35:25 UTC
ppc64 build works fine, this is ppc issue only. I don't think this is a blocker as ppc is distributed as optional.

Comment 4 Tomas Pelka 2017-03-07 09:58:50 UTC
jhorak realized that ppc binary instead of ppc64 one was executed for some reason. This is quite surprising for me as well. I'm quite sure that minor arch should not be first choice on multi-arch machines. Note that it can happen that customer would have both ppc and ppc64 installed. So I think we should investigate why this happen. Or even one can for some crazy reason use 32bit executable instead of 64bit one.

Having said that I think we can ship ff erratum and resolve this one later.

Comment 7 Martin Stransky 2017-05-12 11:08:19 UTC
Note: This bug comes from our internal QA testing, there isn't any customer case attached here. I doubt the plain ppc32 arch is actually used anywhere so we don't have any customer bug reports.

Closing as WONTFIX as actually nobody uses that. Please reopen if there's any customer request to fix that.