From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 14354B7BF4 for ; Fri, 4 Dec 2009 22:19:16 +1100 (EST) Subject: Re: BUG: Bad page map in process From: Benjamin Herrenschmidt To: Josh Boyer In-Reply-To: <20091204110055.GP14279@hansolo.jdub.homelinux.org> References: <20091203141853.3eafba47@lappy.seanm.ca> <1259917707.2076.1271.camel@pasglop> <20091204110055.GP14279@hansolo.jdub.homelinux.org> Content-Type: text/plain; charset="UTF-8" Date: Fri, 04 Dec 2009 22:18:55 +1100 Message-ID: <1259925535.2076.1275.camel@pasglop> Mime-Version: 1.0 Cc: linuxppc-dev , Sean MacLennan List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fri, 2009-12-04 at 06:00 -0500, Josh Boyer wrote: > On Fri, Dec 04, 2009 at 08:08:27PM +1100, Benjamin Herrenschmidt wrote: > >On Thu, 2009-12-03 at 14:18 -0500, Sean MacLennan wrote: > >> With 2.6.32 I sometimes get lots and lots of "Bad page map" errors as > >> shown below. I believe these started in 2.6.32-rc8 or possibly > >> 2.6.32-rc7. Pika just switched to 2.6.31 so I have been concentrating > >> on that release, and not really testing the 2.6.32 stream. > >> > >> I wish I could give more info, but I don't really even have the time to > >> write this email :( I am hoping somebody will have a eureka moment. > > > >That's a concern. Remind me what CPU / MMU type is Pika using ? > > 440EP Ok, I'll have a look next week. In the meantime, Sean, can you give me a hint of what you do to trigger it ? Boot time ? specific workload ? Cheers, Ben.