Messages in this thread | | | Date | Sat, 11 Jan 2014 16:35:00 +0000 (UTC) | From | 7eggert@gmx ... | Subject | Re: [PATCH 2/2] x86, e820 disable ACPI Memory Hotplug if memory mapping is specified by user [v2] |
| |
On Fri, 10 Jan 2014, Prarit Bhargava wrote:
> kdump uses memmap=exactmap and mem=X values to configure the memory > mapping for the kdump kernel. If memory is hotadded during the boot of > the kdump kernel it is possible that the page tables for the new memory > cause the kdump kernel to run out of memory. > > Since the user has specified a specific mapping ACPI Memory Hotplug should be > disabled in this case.
I'll ask just in case: Is it possible to want memory hotplug in spite of using memmap=exactmap or mem=X?
| |