Hi, On Tue, Nov 15, 2011 at 2:50 AM, Tim Hartrick <tim at edgecast.com> wrote: > > The command line for the crashkernel: > > [ ? ?0.000000] Command line: BOOT_IMAGE=/vmlinuz-2.6.38-8-server > root=UUID=ea7a5a27-d58f-469f-a19c-3e65b69587f6 ro console=ttyS0,115200n8 > irqpoll maxcpus=1 nousb memmap=exactmap memmap=640K at 0K > memmap=261484K at 623232K elfcorehdr=884716K memmap=252K#2087484K > Hmm, "memmap=261484K at 623232K" which is 260a0000~35ffb000 it is right in the range of your crash kernel, which is > ?26000000-35ffffff : Crash kernel 35ffb000 is the elfcorehdr address, right at the end of the reserved memory. memmap=252K#2087484K which is > 7f68f000-7f6cdfff : ACPI Tables looks fine too... I guess it is probably the elfcorehdr is constructed incorrectly by /sbin/kexec, if you have a chance to recompile the latest kexec-tools, please enable -DDEBUG to get diagnosis information. Thanks.