> [ 0.000000] efi: SMBIOS=0x85c90000 SMBIOS 3.0=0x85a20000 ACPI > 2.0=0x85d50000 MEMATTR=0x8945e118 MEMRESERVE=0x85f85018 > [ 0.000000] crashkernel reserved: 0x00000000e0000000 - > 0x0000000100000000 (512 MB) > [ 0.000000] cma: Reserved 1024 MiB at 0x00000000a0000000 > ... > [ 0.000000] Zone ranges: > [ 0.000000] DMA [mem 0x0000000080000000-0x00000000bfffffff] > [ 0.000000] DMA32 [mem 0x00000000c0000000-0x00000000ffffffff] > > Well there's your problem - both zones are only nominally 1GB to begin > with, and both have stuff in them before we even get to placing CMA. To > be honest, even without ZONE_DMA that looks pretty tight. > > Robin. OK I see. I don't get the zone range debugs with my working vs generic defconfig. I'm not sure why. We have quite a bit reserved memory. I understand better what's happening now, thank you. Jon
