Topic: r6336 Mac – illegal instruction: 4 leading to crash

[alexbaettig]

The latest nightly build crashes upon opening on my mac (10.8.2). It says in the terminal window "illegal instruction: 4".
I had this problem before, however, it disappeared with the nightly before the present one.
Thanks for any help!

[Ters]

Do you know what processor your Mac has?

[alexbaettig]

Oh yes sorry I forgot to add: Intel

[Ters]

I need something more precise than that.
Edit:
More specifically, a combination of the first two columns in http://en.wikipedia.org/wiki/Comparison_of_Intel_processors

[alexbaettig]

The processor is called 2.4 GHz Intel Core 2 Duo in a MacBook Pro. I can't tell you more specifically as I don't know where I find this info.

[Ters]

That should do. A Core 2 Duo is modern enough to support the advanced instructions that were bothersome in the Windows nightlies this fall. To try to pin down where and what the bothersome instruction was, I would need more details from the crash, but I have no idea how to get that kind of information from Mac OS.

[alexbaettig]

Still does not work with r6340. What further information would you need? No crash report is being generated as the program didn't even start – so nothing to be gained there.

[Ters]

The crash report is generated by the OS (or the debugger, if attached, but it doesn't sound like you're the person to have one). Windows used to show these details prominently (until XP or so), but now just stash them away in the event log and optionally send them to Microsoft.