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bug#14569: 24.3.50; bootstrap fails on Cygwin

From: Ken Brown
Subject: bug#14569: 24.3.50; bootstrap fails on Cygwin
Date: Sun, 23 Jun 2013 11:56:13 -0400
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130509 Thunderbird/17.0.6

On 6/22/2013 3:04 PM, Paul Eggert wrote:
On 06/22/13 08:13, Ken Brown wrote:
Jan or Paul, can you help?

The second trace suggests there's a race condition bug in Cygwin glib,
which I've tried to work around in trunk bzr 113138.  Does that help?
(At least, does it make Emacs crash more reliably?....)

As Angelo said, the answer to both questions is "No". But there's actually a big difference. First, the 'abort' breakpoint is never hit. Second, there are no more SEGVs reported in glib. There are lots of SEGVs in _malloc_internal_nolock, and some further SEGVs that gdb can't pinpoint. I think all of the crashes in _malloc_internal_nolock are coming when it's called by special_realloc. Maybe the latter needs to be calling _malloc_internal instead of _malloc_inernal_nolock. I don't have any more time right now, but I'll try that later.


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