Re: XCode built project crash related to .o files and p_threads?
Re: XCode built project crash related to .o files and p_threads?
- Subject: Re: XCode built project crash related to .o files and p_threads?
- From: Andreas Grosam <email@hidden>
- Date: Wed, 4 Feb 2009 10:17:53 +0100
On Feb 3, 2009, at 7:01 AM, Stephen Northcott wrote:
Hi all,
I have a reproducible error that I *think* is not my fault.. and I
would like some suggestions on how to confirm it / track it down.
Or how to document it so that it could be looked into: The project
it involves is very large, and very complex so a code example is not
going to be very easy.
Basically I have an XCode project with a lot of threading. Yes.. I
know! But hear me out, please.
If I modify the project and just do a normal build, i.e relying on
object files that have already been built, 50% of the time the
project will hang with some thread mutex related lock. This is
always after editing a file, or files, and adding or deleting some
code.
An edit that does not involve updating the source code, and simply
changes comments or such will not exhibit this.
If however I clean the project and do a complete build immediately
without any other modifications it will then not crash.
So it looks like some address that needs to be updated is not and
consequently borking the build.
This is 100% reproducible: i.e. A clean build will NEVER crash, but
a delta build will do it repeatedly until I clean and build again.
Can anyone comment on that with regards to how I might track it
down, and any other thoughts.
I can only guess. If the option "Predictive Compilation" is checked,
try without it. You'll find this option in Xcode Peferences ->
Building pane.
Regards
Andreas
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