From: Jan Kratochvil <jan.kratochvil@redhat.com>
To: gdb-patches@sourceware.org
Subject: Re: Possible future NX ON_STACk regression Re: [patch 3/3] Use ON_STACK for i386/amd64 (gdb2495.exp regression)
Date: Mon, 18 Jun 2012 14:21:00 -0000 [thread overview]
Message-ID: <20120618142055.GA8597@host2.jankratochvil.net> (raw)
In-Reply-To: <20120618080907.GA24971@host2.jankratochvil.net>
On Mon, 18 Jun 2012 10:09:07 +0200, Jan Kratochvil wrote:
> In https://bugzilla.redhat.com/show_bug.cgi?id=832534 Nathan Sidwell reports
> that inferior calls segfault with inferior non-executable stack and Fedora GDB
> already containing this patch.
I have heuristically found the problem affects only one Fedora kernel
version/arch:
https://bugzilla.redhat.com/show_bug.cgi?id=832534#c9
So the GDB patch should be compatible with Linux kernels in general I hope.
Feel free to run the testcase on your kernel/CPU:
http://sourceware.org/cgi-bin/cvsweb.cgi/~checkout~/tests/ptrace-tests/tests/ret-to-nxpage.c?cvsroot=systemtap
gcc -o ret-to-nxpage ret-to-nxpage.c -Wall -g; ./ret-to-nxpage; echo $?
0 == PASS
Regards,
Jan
next prev parent reply other threads:[~2012-06-18 14:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-13 15:51 Jan Kratochvil
2012-06-18 8:09 ` Possible future NX ON_STACk regression " Jan Kratochvil
2012-06-18 14:21 ` Jan Kratochvil [this message]
2012-06-18 14:51 ` Mark Kettenis
2012-06-18 17:32 ` [commit] " Jan Kratochvil
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