From: Linus Torvalds <torvalds@osdl.org>
Date: Wed, 27 Dec 2006 06:49:23 GMT
Subject: Re: Segfault in xdl_merge is back
Message-ID: <Pine.LNX.4.64.0612262245250.4473@woody.osdl.org>
In-Reply-To: <20061227041644.GA22449@spearce.org>



On Tue, 26 Dec 2006, Shawn Pearce wrote:
> 
> I'm suspecting this is actually some sort of memory corruption in
> the heap (due to a bad malloc/free) as the bug seems to rear its
> head only based on the data we are allocating/have allocated.

Can you try to reproduce it under Linux and use "valgrind" to run the 
thing that SIGSEGV's? That tends to be a pretty good way to debug bad 
allocations..

So instead of bisecting it on cygwin, try to use the build that broke on 
Linux too (ie undo the 5caf9232 "fix") and when you can reproduce it under 
Linux, compiel withour -O2 and with debug information, and gdb will be a 
lot more useful, but also run it with valgrind..

		Linus