Commit-ID: b7d460897739e02f186425b7276e3fdb1595cea7 Gitweb: http://git.kernel.org/tip/b7d460897739e02f186425b7276e3fdb1595cea7 Author: Hugh Dickins <hughd@xxxxxxxxxx> AuthorDate: Tue, 24 Aug 2010 22:44:12 -0700 Committer: H. Peter Anvin <hpa@xxxxxxxxx> CommitDate: Tue, 24 Aug 2010 23:05:17 -0700 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: Hugh Dickins <hughd@xxxxxxxxxx> LKML-Reference: <alpine.LSU.2.00.1008242235120.2515@xxxxxxxxxxxxx> Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx> --- arch/x86/kernel/trampoline.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/trampoline.c b/arch/x86/kernel/trampoline.c index a874495..e2a5952 100644 --- a/arch/x86/kernel/trampoline.c +++ b/arch/x86/kernel/trampoline.c @@ -45,8 +45,7 @@ void __init setup_trampoline_page_table(void) /* Copy kernel address range */ clone_pgd_range(trampoline_pg_dir + KERNEL_PGD_BOUNDARY, swapper_pg_dir + KERNEL_PGD_BOUNDARY, - min_t(unsigned long, KERNEL_PGD_PTRS, - KERNEL_PGD_BOUNDARY)); + KERNEL_PGD_PTRS); /* Initialize low mappings */ clone_pgd_range(trampoline_pg_dir, -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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