> What I understand from above in intel 64 Arch software Developer's manual are:
> 1) this manual is written for software developer;
> 2) It says that MCE handler only requires to synchronize among the logical
> cores in the same package/core(what I assume here is same CPU socket).
>
> I have two
y hardware standard or specification
for it?
Ming
-Original Message-
From: Luck, Tony [mailto:tony.l...@intel.com]
Sent: Friday, May 10, 2013 3:42 PM
To: Ming Lei; linux-kernel@vger.kernel.org
Cc: mche...@redhat.com; b...@alien8.de
Subject: RE: x86_mce: mce_start uses number of phs
> So only one socket gets the machine check. So is there still a problem but
> the fix will be different?
> I think the error inject creates a real machine check, but since each CPU has
> its own memory controller,
> the machine check may only send to the CPU the error happens.
If there is a rea
-Original Message-
From: Luck, Tony [mailto:tony.l...@intel.com]
Sent: Friday, May 10, 2013 2:05 PM
To: Ming Lei; linux-kernel@vger.kernel.org
Cc: mche...@redhat.com; b...@alien8.de
Subject: RE: x86_mce: mce_start uses number of phsical cores instead of logical
cores
> I used intel edac er
> I used intel edac error injector and saw the same problem. I actually wrote
> down the core numbers
> and I saw mce got to 0-5 and 12-17, but not the others. I have 2 sockets, 24
> logical cores.
Mauro: How does the EDAC injector work on E5645 (Westmere-EP)? Does it create
a real
error in m
nt: Friday, May 10, 2013 12:10 PM
To: Ming Lei; linux-kernel@vger.kernel.org
Cc: mche...@redhat.com; b...@alien8.de
Subject: RE: x86_mce: mce_start uses number of phsical cores instead of logical
cores
> With hyperthread turns on, the num_online_cpus reports the number of all
> logical cores
> With hyperthread turns on, the num_online_cpus reports the number of all
> logical cores.
> What I found in testing is only half the cores receives the mce broadcast, so
> I assume only the physical cores get broadcast.
See Intel Software Developer Manual Volume 3B Section 15.10.4.1, 3rd bulle
Number E5645
# of Cores 6
# of Threads 12
Ming
-Original Message-
From: Luck, Tony [mailto:tony.l...@intel.com]
Sent: Friday, May 10, 2013 11:14 AM
To: Ming Lei; linux-kernel@vger.kernel.org
Cc: mche...@redhat.com; b...@alien8.de
Subject: RE: x86_mce: mce_start uses number of phsical
> +#if NR_CPUS > 1
> + cpus /= cpumask_weight(cpu_core_mask(0)) / cpu_data(0).booted_cores;
> +#endif
Not entirely sure what you are trying to do here (apart from making "cpus"
be a smaller number). What is the reasoning behind the right hand side of
this expression?
Is this problem more rel
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