Mail Archives: cygwin/2009/07/20/07:36:07
On Jul 20 09:37, Magnus Holmgren wrote:
> When running configure scripts, I sometimes see this error message repeated
> several times, for different lines of the configure script:
>
> bin\sh.exe: *** fatal error - Internal error: TP_NUM_W_BUFS too small.
>
> I saw this when building libsdl 1.2.13 on Cygwin 1.7 (uname -v reports
> 2009-07-13 10:28) on 64-bit Vista SP2. The configure script seem to have
> succeeded anyway (the build completes and libsdl works). So, is it really
> an error?
Yes, it is definitely a bug. AFAICS this occurs when a process forks
too deeply (child forks, grandchild forks again, etc, without execing).
The fork() setjmp/longjmp magic accidentally skipped the cleanup
destructor which is supposed to free the temporary thread-local buffers.
This doesn't matter if the child process execs, as usual, but it matters
a lot as soon as the forked child forks further and further, so the
thread-local buffers become a sparse resource.
Thanks for the report. I'm surprised this hasn't been found earlier.
I'll check in a patch.
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
- Raw text -