On Thu, Jun 05, 2008 at 03:58:40PM +0800, Luming Yu wrote: > On Tue, Jun 3, 2008 at 2:02 PM, Luming Yu <luming.yu at gmail.com> wrote: > >> I'm trying upstream kdump to get more detailed data for help analysis > >> the scenario.. > > Upstream kdump doesn't work! don't know what cause the regression, > > possibly kexec-tools... > > Need investigation here! > > > > I tested mainline kernel from 2.6.20 to 2.6.26-rc4 on my tiger4.. > whatever I try, /proc/vmcore is always 0 ! > > Then I managed to get Nan hai's original patch against 2.6.19.. > http://marc.info/?l=linux-ia64&m=116521104831321&w=2 > This patch doesn't have zero-vmcore problem. > > Given the age of the kdump feature and so many upstream releases since > 2.6.20, I'm in doubt why I don't see this kind of bug report on ia64 > mailing list before? > > PS. Now I can start to capture info for the strace problem with 2.6.19 > kernel +Nahai's 2.6.19 kdump patch, hope the problem is still > reproducible. Which version of kexec-tools are you using? If you haven't done so already, could you try the latest version, 20080324. http://www.eu.kernel.org/pub/linux/kernel/people/horms/kexec-tools/ -- Horms
