On Mon, 24 Mar 2025 13:26:27 +0100 Bruno Haible wrote: > Hi, > > Gnulib contains a few unit tests for > - SIGSEGV handling, > - stack overflow handling (via signal SIGSEGV or SIGBUS). > > In Cygwin 3.4.6, SISGEGV handling was fine, and stack overflow handling > worked at least for the first stack overflow. > > In Cygwin 3.5.6, SISGEGV handling was fine, but stack overflow handling > randomly worked for the first stack overflow or did not work, reminding > me of the raise() bug [1]. > > In Cygwin 3.6.0, SISGEGV handling and stack overflow handling are both > broken. Not randomly, but always reproducible. > > > How to reproduce > ================ > > 1. Create a testdir for gnulib's c-stack module: > $ ./gnulib-tool --create-testdir --dir=../testdir1 --single-configure c-stack > 2. Transfer it to a Cygwin machine. > 3. Build it: ./configure && make && make check
Thanks for the report and reprodusible steps. In my environment, one of your problems is reproduced. FAIL: test-c-stack.sh PASS: test-sigsegv-catch-segv2.exe $ uname -a CYGWIN_NT-10.0-19045 HP-Z230 3.6.0-1.x86_64 2025-03-18 17:01 UTC x86_64 Cygwin I'll look into the stack overflow issue for now. -- Takashi Yano <takashi.y...@nifty.ne.jp> -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
