Hi, Prasad, On 05/10/2011 12:35 AM, K.Prasad wrote: > On Fri, May 06, 2011 at 07:38:25PM +0200, Andi Kleen wrote: >>> Has anybody tested this before? Or have found kdump working when fatal >>> MCEs have actually occurred? >> >> Ying did some testing. mce-test has test cases for kdump. >> > > We'd be glad to hear about any successful testcases with recent kernels. > My manual testing was quite similar to what the LTP kdump testcase would > do i.e. configure kdump service, trigger crash through > /proc/sysrq-trigger and watchout for kdump....but as you could see in > the logs, that did not happen. > >> My guess is you injected the error into some area used by the kexec >> code or boot up path of the kexec kernel. >> >> -Andi > > The logs did not suggest that the second kernel was booted into. The > "Rebooting in ... seconds" message appeared from the first kernel. I > tried the kdump testcase in atleast two dissimilar machines but with > the same results, so it is not clear if the kexec code was affected by > the MCE injection in both the cases.
