Commit-ID: 07a7795ca2e6e66d00b184efb46bd0e23d90d3fe Gitweb: http://git.kernel.org/tip/07a7795ca2e6e66d00b184efb46bd0e23d90d3fe Author: Hans Rosenfeld <hans.rosenfeld@xxxxxxx> AuthorDate: Wed, 18 Aug 2010 16:19:50 +0200 Committer: H. Peter Anvin <hpa@xxxxxxxxx> CommitDate: Wed, 18 Aug 2010 09:16:28 -0700 x86, cpu: Fix regression in AMD errata checking code A bug in the family-model-stepping matching code caused the presence of errata to go undetected when OSVW was not used. This causes hangs on some K8 systems because the E400 workaround is not enabled. Signed-off-by: Hans Rosenfeld <hans.rosenfeld@xxxxxxx> LKML-Reference: <1282141190-930137-1-git-send-email-hans.rosenfeld@xxxxxxx> Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx> --- arch/x86/kernel/cpu/amd.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 60a57b1..ba5f62f 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -669,7 +669,7 @@ bool cpu_has_amd_erratum(const int *erratum) } /* OSVW unavailable or ID unknown, match family-model-stepping range */ - ms = (cpu->x86_model << 8) | cpu->x86_mask; + ms = (cpu->x86_model << 4) | cpu->x86_mask; while ((range = *erratum++)) if ((cpu->x86 == AMD_MODEL_RANGE_FAMILY(range)) && (ms >= AMD_MODEL_RANGE_START(range)) && -- 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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