Bug 202055 – sys-libs/glibc: cfi frame pointers in clone triggers bugs in gcc unwinder

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Hanno Zysik (geki) 2007-12-12 16:59:14 UTC]

There is a regression(?) in glibc-2.7 which was fixed in 2.6.1 afai understand.

There is a diff in archlinux cvs which fixes this. May be related to bug 199009?

Reference:
http://sourceware.org/ml/binutils/2007-11/msg00069.html

Diff:
http://cvs.archlinux.org/cgi-bin/viewcvs.cgi/base/glibc/Attic/fix_memory.diff?rev=1.1&cvsroot=Core&only_with_tag=CURRENT&content-type=text/vnd.viewcvs-markup

[Comment 1 Hanno Zysik (geki) 2007-12-12 17:00:24 UTC]

Created attachment 138329 [details, diff]
fix cpu/memory kill

[Comment 2 SpanKY 2007-12-30 11:46:52 UTC]

this is not a glibc bug ... it's actually a bug in gcc.  read the full thread and you'll see that the cfi stuff was reverted only to workaround the issue, not fix it.

[Comment 3 Hanno Zysik (geki) 2007-12-30 15:38:17 UTC]

Yes, I knew, sorry. I got a bit carried away; realized after commit. :(

[Comment 4 SpanKY 2008-03-23 15:13:17 UTC]

worked around in glibc-2.7-r2 ... will drop once newer gets into ~arch