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Commit b7d46089 authored by Hugh Dickins's avatar Hugh Dickins Committed by H. Peter Anvin
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x86, mm: Fix CONFIG_VMSPLIT_1G and 2G_OPT trampoline



rc2 kernel crashes when booting second cpu on this CONFIG_VMSPLIT_2G_OPT
laptop: whereas cloning from kernel to low mappings pgd range does need
to limit by both KERNEL_PGD_PTRS and KERNEL_PGD_BOUNDARY, cloning kernel
pgd range itself must not be limited by the smaller KERNEL_PGD_BOUNDARY.

Signed-off-by: default avatarHugh Dickins <hughd@google.com>
LKML-Reference: <alpine.LSU.2.00.1008242235120.2515@sister.anvils>
Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
parent 51e3c1b5
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