Minefield Nightly build crashes

bobtran · 03 Oct 2010

polarbear said:

Blongs said:

bobtran said:

The nightly x64 "firefox-4.0b7pre" for 10-2-2010 appears to be unstable. After allowing the upgrade it now crashes with the following error:
--------------------------------
Faulting application name: firefox.exe, version: 2.0.0.3927, time stamp: 0x4ca6ffe2
Faulting module name: mozjs.dll, version: 0.0.0.0, time stamp: 0x4ca6f48b
Exception code: 0xc0000005
Fault offset: 0x00000000001ab60e
Faulting process id: 0x1068
Faulting application start time: 0x01cb6276befdf340
Faulting application path: C:\Program Files\Minefield\firefox.exe
Faulting module path: C:\Program Files\Minefield\mozjs.dll
Report Id: 0283e610-ce6a-11df-80fe-00044b040674
----------------------------------
This seems to me to be a lesson in "don't upgrade" go and download each nightly build so as to be able to revert.

To revert: Index of /pub/mozilla.org/firefox/nightly
Find the x64 build in the "2010-MM-DD-mozilla-central" Directory

I was having the same problem, this is what worked for me.

go into about:config (start minefield in safe mode if necc.)

change these lines to false

javascript.options.methodjit.content
javascript.options.methodjit.chrome

Restart minefield in normal mode and all should be ok

I tried the oct03 build and only had to change the one line and this is from a clean install
javascript.options.methodjit.content to false...

Thanks Blongs

Thanks Blongs. This worked for me also.

mikedl · 03 Oct 2010

Ditto, bobtran. I just came back to post that it was necessary to disable only one of the about:config settings (the content one). Thanks Polarbear, you're a step ahead of me. One of the many things I like about this forum!

Apparently it has something to do with the JaegerMonkey method with the "javascript.options.methodjit.content" string to enable JaegerMonkey for web pages and the "javascript.options.methodjit.chrome" string to enable it within Firefox.

HOT97ECLIPSEGSX · 03 Oct 2010

I was about to post on the same topic. Minefield loads for me, but when I attempt to load any web page it crashes. I'll try the Java option and see if that works. I'll uninstall and reinstall a new build to see if that fixes things.

May be a dumb question, but how does one get to the "about:config" of minefield?

HOT97ECLIPSEGSX · 03 Oct 2010

I looked in the folder where minefield is located and still could not find a config file. I also checked the browser itself. I must be a huge n00b. :)

Can someone point me in the right direction?

IownAmoneyPit · 04 Oct 2010

HOT97ECLIPSEGSX said:

I looked in the folder where minefield is located and still could not find a config file. I also checked the browser itself. I must be a huge n00b. :)

Can someone point me in the right direction?

Highlight the address bar then just type, about:config
Click the I'll be careful I promise button then find the item you wish to edit

Blongs · 04 Oct 2010

HOT97ECLIPSEGSX said:

I looked in the folder where minefield is located and still could not find a config file. I also checked the browser itself. I must be a huge n00b. :)

Can someone point me in the right direction?

Start minefield, type about:config in address bar, press enter

HOT97ECLIPSEGSX · 04 Oct 2010

Doesn't seem I'm able to do much with it. I get a few menu options, but don't seem to be able to change the value to false. I feel like a huge n00b. :) When I double-click it (I searched and found how boolean values are changed) minefield will crash.

By the way, for those who don't already know, I found this nifty little link: http://www.computerworld.com/s/article/9020880/Hacking_Firefox_The_secrets_of_about_config

mikedl · 04 Oct 2010

HOT97ECLIPSEGSX said:

Doesn't seem I'm able to do much with it. I get a few menu options, but don't seem to be able to change the value to false. I feel like a huge n00b. :) When I double-click it (I searched and found how boolean values are changed) minefield will crash.

In order to change the values and not have Minefield crash one has to change the appropriate values. If the about:config entries presented thus far didn't work:

"javascript.options.methodjit.content" (my working configuration has this set to true - its default)
"javascript.options.methodjit.chrome" (my working configuration has this set to false - its default)

Change this value instead:

"javascript.options.tracejit.content" (my working configuration has this set to false - not its default)

If you cannot start Minefield normally due to the crashing issue, use one of these three methods for starting Minefield:

1. Go back to bobtran's earlier post which indicates where to find the October 1st build, download, install it over the current installation and start it up.

2. Start Minefield in safe mode from your Programs menu:

Minefield Nightly build crashes-screenshot00032.jpg

3. Click on the Start button and type: "C:\Program Files\Minefield\firefox.exe" -safe-mode

Once Minefield is running, type "about:config" in the address bar then in the"Filter" box type "javascript.options" resulting in this view:

Minefield Nightly build crashes-screenshot00035.jpg

Change any settings that don't match the above indicated entries. As you learned, the way to change a Boolean value is as easy as double-clicking the entry.

I apologize, 97ECLIPSE, if I have mentioned some steps of which you are already knowledgeable. I hope the above helps.

yowanvista · 04 Oct 2010

Use the hourly builds: Index of /pub/mozilla.org/firefox/tinderbox-builds/mozilla-central-win32

mikedl · 04 Oct 2010

yowanvista said:

Use the hourly builds: Index of /pub/mozilla.org/firefox/tinderbox-builds/mozilla-central-win32

Is there an advantage in doing so? I mean, over the nightly builds?

Here is the link to the x64 hourlies. (they're not quite hourlies)