Hi Yinghai, 2013/8/24 Yinghai Lu <ying...@kernel.org>: > On Fri, Aug 23, 2013 at 1:30 PM, Russ Anderson <r...@sgi.com> wrote: >> On Fri, Aug 23, 2013 at 01:08:56PM -0700, Yinghai Lu wrote: >>> On Fri, Aug 23, 2013 at 11:25 AM, H. Peter Anvin <h...@zytor.com> wrote: > >>> Russ, What is ACPI table size on your big machine? >> >> This is from a 256 socket 32TB system. >> >> Reserving 256MB of memory at 66973408MB for crashkernel (System RAM: >> 32501719MB) >> ACPI: RSDP 000000007ef3d014 00024 (v02 INTEL ) >> ACPI: XSDT 000000007ef3d120 0007C (v01 INTEL TIANO 00000000 >> 01000013) >> ACPI: FACP 000000007ef3a000 000F4 (v04 INTEL TIANO 00000000 MSFT >> 01000013) >> ACPI: DSDT 000000007e6c3000 7F493E (v02 SGI2 UVX 00000002 MSFT >> 01000013) >> ACPI: FACS 000000007d147000 00040 >> ACPI: UEFI 000000007ef3c000 0012A (v01 INTEL RstScuO 00000000 >> 00000000) >> ACPI: UEFI 000000007ef3b000 0005C (v01 INTEL RstScuV 00000000 >> 00000000) >> ACPI: HPET 000000007ef39000 00038 (v01 INTEL TIANO 00000001 MSFT >> 01000013) >> ACPI: SSDT 000000007ef33000 05352 (v02 INTEL ROSECITY 00000003 INTL >> 20070508) >> ACPI: SLIT 000000007ef10000 1002C (v01 SGI2 UVX 00000002 MSFT >> 00000001) >> ACPI: APIC 000000007eeee000 10070 (v03 SGI2 UVX 00000002 MSFT >> 00000001) >> ACPI: SRAT 000000007eeb8000 1A830 (v03 SGI2 UVX 00000002 MSFT >> 00000001) >> ACPI: MCFG 000000007d6d4000 0105C (v01 SGI2 UVX 00000002 MSFT >> 00000001) >> ACPI: SPCR 000000007e6c2000 00050 (v01 00000000 >> 00000000) >> ACPI: DMAR 000000007d6d3000 0013C (v01 INTEL TIANO 00000001 MSFT >> 01000013) >> > > so the DSDT is 7F493E, and total is more than 8M. > > that will need BRK to be extended 16M? >
Then how about use early_ioremap(), and don't do it that early in head_32 and head64 ? Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
