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| author | Mark Johnston <markj@FreeBSD.org> | 2020-12-18 16:04:48 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2020-12-18 16:04:48 +0000 |
| commit | 0f8b212a1e41d6eabf2a17442bcbe4f128f023f8 (patch) | |
| tree | 4c22c04d9085aa0d6db60658b7f9ff554e03dcd3 /sys/amd64/include/gdb_machdep.h | |
| parent | 5120612664fbc54d69ee1a21d0abcbab58712709 (diff) | |
| download | src-test2-0f8b212a1e41d6eabf2a17442bcbe4f128f023f8.tar.gz src-test2-0f8b212a1e41d6eabf2a17442bcbe4f128f023f8.zip | |
acpi: Ensure that adjacent memory affinity table entries are coalesced
The SRAT may contain multiple distinct entries that together describe a
contiguous region of physical memory. In this case we were not
coalescing the corresponding entries in the memory affinity table, which
led to fragmented phys_avail[] entries. Since r338431 the vm_phys_segs[]
entries derived from phys_avail[] will be coalesced, resulting in a
situation where vm_phys_segs[] entries do not have a covering
phys_avail[] entry. vm_page_startup() will not add such segments to the
physical memory allocator, leaving them unused.
Reported by: Don Morris <dgmorris@earthlink.net>
Reviewed by: kib, vangyzen
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D27620
Notes
Notes:
svn path=/head/; revision=368763
Diffstat (limited to 'sys/amd64/include/gdb_machdep.h')
0 files changed, 0 insertions, 0 deletions