https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=6c1552b0da7c7cdf1cf1668b3706c0d1a14c9b2d
commit 6c1552b0da7c7cdf1cf1668b3706c0d1a14c9b2d Author: Takashi Yano via Cygwin-patches <[email protected]> Date: Fri Jan 29 12:46:26 2021 +0900 Cygwin: exceptions.cc: Suspend all threads in sig_handle_tty_stop(). - Currently, thread created by pthread_create() is not suspended by the signal SIGTSTP. For example, even if a process with a thread is suspended by Ctrl-Z, the thread continues running. This patch fixes the issue. Diff: --- winsup/cygwin/exceptions.cc | 2 ++ 1 file changed, 2 insertions(+) diff --git a/winsup/cygwin/exceptions.cc b/winsup/cygwin/exceptions.cc index c98b92d30..3a6823325 100644 --- a/winsup/cygwin/exceptions.cc +++ b/winsup/cygwin/exceptions.cc @@ -902,7 +902,9 @@ sig_handle_tty_stop (int sig, siginfo_t *, void *) thread. */ /* Use special cygwait parameter to handle SIGCONT. _main_tls.sig will be cleared under lock when SIGCONT is detected. */ + pthread::suspend_all_except_self (); DWORD res = cygwait (NULL, cw_infinite, cw_sig_cont); + pthread::resume_all (); switch (res) { case WAIT_SIGNALED:
