Hi Cygwin friends and users,
I released a new TEST version of Cygwin. The version number is 2.2.0-0.1. This test release needs some good old-fashioned testing. While the new features in this release are only interesting to developers again, there's an intrusive under-the-hood change which just needs testing in as many scenarios as possible. ==================================== tl;dr ================================== Details aside, the interesting thing here is plain and simple this: Does your stuff still work as with 2.1.0? No regression? ============================================================================ The boring details: The under-the-hood change is this: Certain functions in Cygwin were using very big buffers (32K, 64K, and more) on the stack. While this is not much of a problem with the normal stacksize of 2 Megs, it's been a lot of stack pressure on an application-provided patch. Yada, yada. For devs only: 2.2.0 comes with four new functions: getcontext, setcontext, makecontext and swapcontext. My own testing included two very simple self-written STCs, as well as the example code from http://linux.die.net/man/3/makecontext, as well as the glibc testcase tst-makecontext3.c. As with the sigaltstack stuff, I'd be grateful if curious developers would give this implementation a test. If it doesn't work as desired, please consider to create simple reproduces in plain C. Discussing aspects of this implementation may be best handled on the cygwin-developers mailing list or the #cygwin-developers IRC channel on Freenode. Have fun, Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer 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
