1b86dd7d8c
killpg(pgid, 0) (or kill_pgrp(pgid, si_signo=0), in signal.cc) fails (returns -1) even when there is a process in the process group pgid, if the process is in the middle of spawnve(), see https://cygwin.com/pipermail/cygwin/2022-May/251479.html When exec'ing a process the assumption is that the exec'ed process creates its own symlink (in pinfo::thisproc() in pinfo.cc). If the exec'ing process calls NtClose on it's own winpid symlink, but the exec'ed process didn't progress enough into initialization, there's a slim chance that neither the exec'ing process, nor the exec'ed process has a winpid symlink attached. Always create the winpid symlink in spawn.cc, even for exec'ed Cygwin processes. Make sure to dup the handle into the new process, and stop creating the winpid symlink in exec'ed processes. Signed-off-by: Corinna Vinschen <corinna@vinschen.de> |
||
|---|---|---|
| .. | ||
| CVSChangeLogs.old | ||
| cygserver | ||
| cygwin | ||
| doc | ||
| testsuite | ||
| utils | ||
| CONTRIBUTORS | ||
| COPYING | ||
| COPYING.LIB | ||
| CYGWIN_LICENSE | ||
| Makefile.am | ||
| Makefile.am.common | ||
| README | ||
| acinclude.m4 | ||
| autogen.sh | ||
| configure.ac | ||
README
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cygwin documentation is available on the net at https://cygwin.com You might especially be interested in https://cygwin.com/faq/faq.html#faq.programming.building-cygwin