Hardy proposed 2.6.24-20-generic kernel will not boot

[Alok Kataria]

On Fri, 2008-07-25 at 14:36 -0700, Tim Gardner wrote:
> Alok,
> 
> Have a look at LP Bugs #251344 and #251379
> 
> https://bugs.launchpad.net/bugs/251344
> https://bugs.launchpad.net/bugs/251379
> 
> The CPUID patch set is the most likely culprit. Any thoughts?

Can you try this patch, i don't see the problem on any of the cpu's that
i have here. 

--
Fix for processors which don't support SSE instructions

From: Alok N Kataria <akataria at vmware.com>


---

 arch/x86/kernel/cpu/amd.c   |    2 +-
 arch/x86/kernel/cpu/intel.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)


diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index aaa8101..6558ce8 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -302,7 +302,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 	if (c->x86 < 6)
 		clear_bit(X86_FEATURE_MCE, c->x86_capability);
 
-	if (cpu_has_xmm)
+	if (cpu_has_xmm2)
 		set_bit(X86_FEATURE_MFENCE_RDTSC, c->x86_capability);
 }
 
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 161bbc0..62e5a4b 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -201,7 +201,7 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
 	}
 #endif
 
-	if (cpu_has_xmm)
+	if (cpu_has_xmm2)
 		set_bit(X86_FEATURE_LFENCE_RDTSC, c->x86_capability);
 	if (c->x86 == 15) {
 		set_bit(X86_FEATURE_P4, c->x86_capability);


> 
> I don't have programmer references for all of these CPUs, though I
> suppose I might be able to find them on-line.
> 
> rtg
> --
> Tim Gardner tim.gardner at canonical.com