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

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

Summary: sys-libs/glibc: cfi frame pointers in clone triggers bugs in gcc unwinder

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	[OLD] Core system (show other bugs)
Hardware:	All Linux

Importance:	High normal (vote)
Assignee:	Gentoo Toolchain Maintainers

URL:	http://sourceware.org/bugzilla/show_b...
Whiteboard:
Keywords:

Depends on:
Blocks:	346373
	Show dependency tree

Reported:	2007-12-12 16:59 UTC by Hanno Zysik (geki)
Modified:	2010-11-24 01:47 UTC (History)
CC List:	0 users

See Also:
Package list:
Runtime testing required:	---

Attachments
fix cpu/memory kill (fix_memory.diff,1.50 KB, patch) 2007-12-12 17:00 UTC, Hanno Zysik (geki)	Details \| Diff
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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 gentoo-dev

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 gentoo-dev

2008-03-23 15:13:17 UTC

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