Need to block SIGCHLD in libgc and guile internal threads

Hi. I think(!) I understand why gdb is hanging when used with libgc 7.4.x. This is gdb bug 17247. https://sourceware.org/bugzilla/show_bug.cgi?id=17247#c30 First, libgc 7.4.x was the first release to default PARALLEL_MARK to on, so I'm guessing the same "bug" exists in 7.2, it's just not visible

Re: Need to block SIGCHLD in libgc and guile internal threads

On Tue, Aug 26, 2014 at 1:14 AM, Doug Evans wrote: > Hi. > > I think(!) I understand why gdb is hanging when used with libgc 7.4.x. > This is gdb bug 17247. > https://sourceware.org/bugzilla/show_bug.cgi?id=17247#c30 > > First, libgc 7.4.x was the first release to default PARALLEL_MARK to > on, so