An update on testing thise patches: > This version of the patch improves the consolidation of the mem_map table > that is passed to the kernel. See make_kernel_mmap(). > Particularly the seemingly duplicate pfn ranges generated on an older > (2.6.32-based, rhel6) kernel. On a 2TB machine (idle) machine: the crash kernel ran successfully in 512M the scan for unnecessary pages takes about 40 seconds it was a single scan, not cyclic On a 16TB machine (idle) machine: the crash kernel ran successfully in 512M there is a pause of about 4 minutes during makedumpfile initialization the scan for unnecessary pages takes about 4.8 minutes it was a single scan, not cyclic
