On 2019/05/21 18:02, Kairui Song wrote: > On Wed, May 15, 2019 at 3:10 PM Junichi Nomura <j-nomura@xxxxxxxxxxxxx> wrote: >> On 5/15/19 3:58 PM, Borislav Petkov wrote: >>> On Wed, May 15, 2019 at 05:17:19AM +0000, Junichi Nomura wrote: >>>> I found kexec(1) fails to load kernel on a few machines if this patch >>>> is applied. Those machines don't have IORES_DESC_ACPI_TABLES region >>>> and have ACPI tables in IORES_DESC_ACPI_NV_STORAGE region instead. >>> >>> Why? What kind of machines are those? >> >> I don't know. They are just general purpose Xeon-based servers >> and not some special purpose machines. So I guess there are other >> such machines in the wild. > > Hi, I think it's reasonable to update the patch to include the > NV_STORAGE regions as well, most likely the firmware only provided > NV_STORAGE region? Can you help confirm if the e820 didn't contain > ACPI data, and only ACPI NVS? Yes, those machines only have ACPI NVS region as far as I see from kernel log. > I had a try with this update patch, it worked and didn't break anything. > > Hi Boris, would you prefer to just fold Junichi update patch into the > previous one or I should send an updated patch? -- Jun'ichi Nomura, NEC Corporation / NEC Solution Innovators, Ltd. _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
