Date: Tue, 19 Jan 2016 19:02:50 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 206384] llvm libunwind segfaults while building lang/polyml Message-ID: <bug-206384-8-XuQlpDCYQJ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-206384-8@https.bugs.freebsd.org/bugzilla/> References: <bug-206384-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D206384 --- Comment #1 from Ed Maste <emaste@freebsd.org> --- This is happening because libunwind steps on the thread stack guard page. libpolyml/sighandler.cpp for the signal handler thread calls pthread_attr_setstacksize(min(4096, PTHREAD_STACK_MIN)) - on FreeBSD/x86 PTHREAD_STACK_MIN is 2k so we end up with the 4k min, but it seems llvm-libunwind needs more stack space for the _Unwind_ForcedUnwind. --=20 You are receiving this mail because: You are the assignee for the bug.=
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