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) Please tell me and I will try to boot into it. Thank you, Suchada -----Original Message----- From: Mohan Kumar M [mailto:mohan@xxxxxxxxxx] Sent: Wednesday, May 14, 2008 1:26 PM To: gib Cc: kexec at 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 at 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 >
