SRU request for LP#239666

Wang, Yong Y at
Fri Jun 13 07:20:23 UTC 2008

SRU justification:

Impact: Current 64 bit MCE reporting code in Hardy 2.6.24 kernel
hardcodes bank limitation as 6 and this is not an issue for processors
with <=6 MCE banks. But for latest processors, e.g. Dunnington, with
more than 6 MCE banks, additional MCE banks available in processor
hardware are not enabled to record hardware error information which is
extremely helpful for diagnostics.

For those who do not know what MCA & MCE are, here are some nice
2. kernel-source-dir/Documentation/x86_64/machinecheck

Original patch can be found at

Fix is available below:

The following changes since commit
  Amit Kucheria (1):
        UBUNTU: LPIA: More conservative culling of LPIA config

are available in the git repository at:

  git:// master

Yong Wang (1):
      UBUNTU: x86: Remove 6 bank limitation in 64 bit MCE reporting code

 arch/x86/kernel/cpu/mcheck/mce_64.c |   20 ++++++++++++--------
 1 files changed, 12 insertions(+), 8 deletions(-)


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