• Borislav Petkov's avatar
    RAS: Add a Corrected Errors Collector · 011d8261
    Borislav Petkov authored
    Introduce a simple data structure for collecting correctable errors
    along with accessors. More detailed description in the code itself.
    The error decoding is done with the decoding chain now and
    mce_first_notifier() gets to see the error first and the CEC decides
    whether to log it and then the rest of the chain doesn't hear about it -
    basically the main reason for the CE collector - or to continue running
    the notifiers.
    When the CEC hits the action threshold, it will try to soft-offine the
    page containing the ECC and then the whole decoding chain gets to see
    the error.
    Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: linux-edac <linux-edac@vger.kernel.org>
    Link: http://lkml.kernel.org/r/20170327093304.10683-5-bp@alien8.de
    Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
kernel-parameters.txt 154 KB