[64bit] emacs is unable to call subprocesses if display-time-mode is set

Christopher Faylor cgf-use-the-mailinglist-please@cygwin.com
Wed Apr 3 14:17:00 GMT 2013

On Wed, Apr 03, 2013 at 04:05:35PM +0200, Corinna Vinschen wrote:
>On Apr  3 09:49, Ken Brown wrote:
>> On 4/3/2013 7:41 AM, Corinna Vinschen wrote:
>> >On Apr  2 18:57, Ken Brown wrote:
>> >>How did you figure out that the crash occurs in cmalloc?  I tried
>> >>addr2line, but it gave me no information:
>> >>
>> >>$ addr2line -e /bin/cygwin1.dll 1800429F4
>> >>??:?
>> >
>> >Are you sure the stackdump is from the same version of the Cygwin
>> >DLL you're running now?
>> I didn't get a stackdump.  I was relying on the following line from
>> the strace output:
>>   Process 4928, exception c0000005 at 00000001800429F4
>> I just reproduced that today, with the same address, so there's no
>> question of the DLL version.
>Hmm.  Did you install the cygwin-debuginfo package?  If all else
>fails, try `addr2line -e /usr/lib/debug/usr/bin/cygwin1.dbg'.  I get
>  $ $ addr2line -e /usr/lib/debug/usr/bin/cygwin1.dbg 1800429F4
>  /usr/src/debug/cygwin-1.7.18-15/winsup/cygwin/cygheap.cc:298

Is it time to scrap the malloc functions in cygheap and roll them into
the standard malloc?  I think modern mallocs allow you to segregate
regions they way we'd want to for cygheap.


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