From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by ozlabs.org (Postfix) with SMTP id 7D0B8DDDE6 for ; Thu, 15 Nov 2007 19:48:21 +1100 (EST) Content-Type: text/plain; charset="iso-8859-1" Date: Thu, 15 Nov 2007 09:48:19 +0100 From: "Gerhard Pircher" In-Reply-To: <18235.28312.88899.861687@cargo.ozlabs.ibm.com> Message-ID: <20071115084819.162500@gmx.net> MIME-Version: 1.0 References: <20071108214723.135260@gmx.net> <1194564017.6561.21.camel@pasglop> <20071109074155.266120@gmx.net> <1194594629.6561.34.camel@pasglop> <20071110171130.254580@gmx.net> <1194753340.21340.24.camel@pasglop> <20071113212320.85840@gmx.net> <1194990218.28865.1.camel@pasglop> <20071113220655.85840@gmx.net> <1194997072.28865.5.camel@pasglop> <20071114093939.297890@gmx.net> <18235.28312.88899.861687@cargo.ozlabs.ibm.com> Subject: Re: Kernel locks up after calling kernel_execve() To: Paul Mackerras Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , -------- Original-Nachricht -------- > Datum: Thu, 15 Nov 2007 08:54:32 +1100 > Von: Paul Mackerras > An: "Gerhard Pircher" > CC: benh@kernel.crashing.org, linuxppc-dev@ozlabs.org > Betreff: Re: Kernel locks up after calling kernel_execve() > No it's not just for ppc64. We had a patch that went in some time ago > to ensure that the M bit was set on various 32-bit platforms because > otherwise we got data corruption (due to a small cache in the > northbridge not being kept coherent with the processor cache). Ah, I thought this was due to a CPU errata, where L2 cache prefetching causes data corruption with the coherent bit set to 0. Gerhard -- Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger