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    SubjectRe: [PATCH] x86: Remove 6 bank limitation in 64 bit MCE reporting code
    Venki Pallipadi wrote:
    > Eliminate the 6 bank restriction in 64 bit mce reporting code. This restriction
    > is artificial (due to static creation of sysfs files) and 32 bit code
    > does not have any such restriction.
    > This change helps in reporting the details of machine checks on a machine check
    > exception with errors in bank 6 and above on CPUs that support those banks.
    > Without the patch, machine check errors in those banks are not reported.
    > We still have 128 (MCE_EXTENDED_BANK) bank restriction instead of max 256
    > supported in hardware. That is not changed in the patch below as it will have
    > some user level mcelog utility dependency, with bank 128 being used for
    > thermal reporting currently.
    > The patch below does not create sysfs control (bankNctl) for banks higher
    > than 6 as well. That needs some pre-cleanup in /sysfs mce layout, removal of
    > per cpu /sysfs entries for bankctl as they are really global system level
    > control today. That change will follow. This basic change is critical to
    > report the detailed errors on banks higher than 6.
    > Signed-off-by: Venkatesh Pallipadi <>

    Any chance you could add unifying the 32 and 64-bit code to your list,
    since you're already working on eliminating differences there?


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