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| author | Ingo Molnar <mingo@elte.hu> | 2008-02-06 22:39:44 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-02-06 22:39:44 +0100 |
| commit | 2d684cd6d9cf0c6a0e28978362671b6e2d8fb56c (patch) | |
| tree | a952b8ceb00c63254dec4fb709ab8410d45c71cd | |
| parent | d8b57bb700a73872fd06b891d7c9bc4cea1a6af4 (diff) | |
| download | kernel-common-2d684cd6d9cf0c6a0e28978362671b6e2d8fb56c.tar.gz kernel-common-2d684cd6d9cf0c6a0e28978362671b6e2d8fb56c.tar.bz2 kernel-common-2d684cd6d9cf0c6a0e28978362671b6e2d8fb56c.zip | |
x86: remove X2 workaround
With the spurious handler fix, the X2 does not lock up anymore.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/mm/pageattr.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 16ce841f08d6..c870424aa9ad 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -260,17 +260,6 @@ try_preserve_large_page(pte_t *kpte, unsigned long address, pgprot_t old_prot, new_prot; int level, do_split = 1; - /* - * An Athlon 64 X2 showed hard hangs if we tried to preserve - * largepages and changed the PSE entry from RW to RO. - * - * As AMD CPUs have a long series of erratas in this area, - * (and none of the known ones seem to explain this hang), - * disable this code until the hang can be debugged: - */ - if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) - return 1; - spin_lock_irqsave(&pgd_lock, flags); /* * Check for races, another CPU might have split this page |