From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from e2.ny.us.ibm.com ([32.97.182.142]) by bombadil.infradead.org with esmtps (Exim 4.68 #1 (Red Hat Linux)) id 1Jyoq3-0007LF-FW for kexec@lists.infradead.org; Wed, 21 May 2008 13:58:44 +0000 Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by e2.ny.us.ibm.com (8.13.8/8.13.8) with ESMTP id m4LDwTZK031853 for ; Wed, 21 May 2008 09:58:29 -0400 Received: from d01av04.pok.ibm.com (d01av04.pok.ibm.com [9.56.224.64]) by d01relay04.pok.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id m4LDwTUG131440 for ; Wed, 21 May 2008 09:58:29 -0400 Received: from d01av04.pok.ibm.com (loopback [127.0.0.1]) by d01av04.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id m4LDwT78026141 for ; Wed, 21 May 2008 09:58:29 -0400 Message-ID: <48342A82.2000706@in.ibm.com> Date: Wed, 21 May 2008 19:28:26 +0530 From: Mohan Kumar M MIME-Version: 1.0 Subject: Re: Question about forcing kernel panic on PowerMac G5 by kexec command References: <200804210517.m3L5Hq61011769@toshiba.co.jp> <480D790D.7080403@in.ibm.com> <200804230041.m3N0fIQD013543@toshiba.co.jp> <480F05D7.1060402@in.ibm.com> <200805090406.m4946FxB003919@toshiba.co.jp> <482A69C5.3060106@in.ibm.com> <200805140502.m4E52udd015629@toshiba.co.jp> In-Reply-To: <200805140502.m4E52udd015629@toshiba.co.jp> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: kexec-bounces@lists.infradead.org Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: gib Cc: kexec@lists.infradead.org gib wrote: > Hi Mohan, > >> Do you have only one entry for memory node in the /proc/device-tree > directory? > Yes, I have only one entry(for memory) in the /proc/device-tree directory. > >> Do you know last good working version of kernel (for kdump) and try to >> boot into that kernel and check the memory nodes in device-tree? > What is the last version of kernel for kdump which you mentioned? > (now I using the vanilla kernel 2.6.25 version) Hi Suchada, Sorry, I don't have information related to G5 and kexec/kdump. Still I am not sure why the device tree is exporting only one memory node. Regards, Mohan. > > Please tell me and I will try to boot into it. > > Thank you, > Suchada > > -----Original Message----- > From: Mohan Kumar M [mailto:mohan@in.ibm.com] > Sent: Wednesday, May 14, 2008 1:26 PM > To: gib > Cc: kexec@lists.infradead.org > Subject: Re: Question about forcing kernel panic on PowerMac G5 by kexec > command > > gib wrote: >> Hi Mohan, >> >> Sorry for the late reply. >> >>> I am not sure about the latest kexec tools. Is it possible to test with >>> the kexec-tools shipped with the distro? >> I tried to test with the kexec-tools shipped with the distro before and it >> gave me the same result as the latest kexec-tools (kexec-tools-testing >> 20080324). >> >>> Can you give us the contents of the reg property in the last memory node >>> in device tree? >> With the command # hexdump /proc/device-tree/memory@0,0/reg I got >> 0000000 0000 0000 0000 0000 2000 0000 0000 0000 >> 0000010 0000 0000 0000 0000 0000 0000 2000 0000 >> 0000020 2000 0000 0000 0000 4000 0000 2000 0000 >> 0000030 0000 0000 0000 0000 0000 0000 0000 0000 >> * >> 0000060 >> > > Hi Suchada, > > Do you have only one entry for memory node in the /proc/device-tree > directory? > > Do you know last good working version of kernel (for kdump) and try to > boot into that kernel and check the memory nodes in device-tree? > > kexec-tools uses reg property in the memory device nodes to calculate > the total system memory. > > From above "hexdump", I could not parse the memory properties. > > Regards, > Mohan. > > >> Is it because of this problem that cause the system did not go the next > step >> and kept showing "Sending IPI to other CPU" message? >> >> Thanks for your help, >> Suchada >> > > > > _______________________________________________ > kexec mailing list > kexec@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/kexec _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec