1121407 - Gecko Profiler causes immediate crash on Nightly x64 only

Status: RESOLVED DUPLICATE of bug 1120126

(Firefox :: Untriaged, defect)

Description

[Samuel Leslie]

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36

Steps to reproduce:

Have noticed a substantial performance degradation in Firefox which seems to coincide with the update to the 38 Branch of Firefox Nightly (v38.0a1 2015-01-13 Win64). Attempted to get some useful diagnostic data for reporting in a bug by installing the Gecko Profiler extension as per:
https://developer.mozilla.org/en-US/docs/Mozilla/Performance/Reporting_a_Performance_Problem


Actual results:

Firefox Nightly immediately crashed on installing the extension. On subsequent attempts to restart Firefox the browser also immediately crashed. To recover the extension had to be manually removed from the user profile extensions folder.

Crash on install: https://crash-stats.mozilla.com/report/index/f87d6881-d4c1-4886-8c12-d32922150114
Crash on restart: https://crash-stats.mozilla.com/report/index/f47ddfaf-4432-47cb-85b6-f2d692150114

The stack traces appear identical.


Expected results:

Extension successfully installs & functions to obtain performance profiling data.

Comment 1

[:Gijs (he/him)]

Benoit, can you help? :-)

Comment 2

[Benoit Girard (:BenWa)]

I don't have the bandwidth to address unwinding on win x64. For now I'd recommend using a windows native profile. I know memshrink is working on it for DMD so perhaps once they get it working this will become easier.

Comment 3

[Alice0775 White]

Nightly 38.0a2 x64 (2015-01-13) crashes immediately.
However, Nightly 38.0a2 x64 (2015-01-14) does not crash.

Reporter, could you re-test in Latest Nightly?

Comment 4

[Alice0775 White]

Sorry
s/38.0a2/38.0a1/

Comment 5

[Alice0775 White]

This should be fixed by Bug 1120126