On Wed, Jul 10, 2013 at 02:54:59PM -0400, Ken Brown wrote:
>On 7/10/2013 2:07 PM, J. David Boyd wrote:
>>
>> I'm starting to see this error quite a bit in the terminal window I started
>> emacs from:
>>
>> 0 [main] emacs-X11 19400 C:\tools\cygwin\bin\emacs-X11.exe: *** fatal error
>> in
>> forked process - failed to create new win32 semaphore, Win32 error 87
>
>Have you tried rebaseall
>(http://cygwin.com/faq.html#faq.using.fixing-fork-failures)? This isn't
>the typical error message you see from rebase problems, but it can't
>hurt to try. If that doesn't help, maybe you could test the build I
>mentioned at
That doesn't look like the standard fork problem, Ken. The error comes
from semaphore::_fixup_after_fork:
void
semaphore::_fixup_after_fork ()
{
if (shared == PTHREAD_PROCESS_PRIVATE)
{
pthread_printf ("sem %p", this);
/* FIXME: duplicate code here and in the constructor. */
win32_obj_id = ::CreateSemaphore (&sec_none_nih, currentvalue,
INT32_MAX, NULL);
if (!win32_obj_id)
api_fatal ("failed to create new win32 semaphore, %E");
}
}
Error code 87 is ERROR_INVALID_PARAMETER. The only two things that I
can see which would cause that problem are "sec_non_nih" and
currentvalue.
I'll change the error to report on currentvalue. I assume that
currentvalue must be zero for some reason here and that is what is
causing the problem but it would be nice to know for sure.
cgf
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