Hi Bernhard, Thank you for the report. Bernhard Walle wrote: > After debugging that, I didn't find an error code. That address is in > fact the beginning of the mem_map of that node, and is in fact not > mapped (I verified that in crash). > > With an older kernel and an older makedumpfile it succeeds. I'd like to know whether this problem is due to the makedumpfile regression or either the unsupported kernel. Could you please fill the following items ? * Problematic condition kernel version: ? makedumpfile version: 1.2.7 * Successful condition kernel version: ? makedumpfile version: ? And could you please test the combination of successful kernel and problematic makedumpfile(1.2.7) ? Thanks Ken'ichi Ohmichi