From mboxrd@z Thu Jan 1 00:00:00 1970 From: Berthold Gunreben Subject: Re: vfork test case. Date: Thu, 17 Dec 2009 22:40:22 +0100 Message-ID: <200912172240.22252.b.gunreben@web.de> References: <119aab440912061319y5b863203ve5dc3dc568a6ccec@mail.gmail.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" To: "linux-parisc" Return-path: In-Reply-To: <119aab440912061319y5b863203ve5dc3dc568a6ccec@mail.gmail.com> List-ID: List-Id: linux-parisc.vger.kernel.org Hi Carlos, On Sunday 06 December 2009 22:19:13 Carlos O'Donell wrote: > Kyle, James, > > I have constructed a vfork test case which shows some of the problems > I have using vfork reliably. This fails every time on my PA8700 system > running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is > being corrupted. this reminds me of a problem with vfork that I encountered some years ago. The problem as described in http://sourceware.org/ml/libc-alpha/2003-02/msg00042.html was fixed for many architectures, but not for hppa as far as I remember. See also http://sourceware.org/ml/libc-hacker/2003-02/msg00015.html I have no idea if this is related, but thought it won't hurt to mention this. Berthold