1. 11 Mar, 2003 2 commits
    • Alex Williamson's avatar
      [PATCH] ia64: CPE & CMC polling for 2.5 · 26abebb8
      Alex Williamson authored
      Here's another feature I'd like to add to MCA support; the ability
      to detect a flood of CMCs and switch to polling mode for retrieving
      CMC logs.  Once no more CMC logs are found, return to and interrupt
      driven handler.  If the flood threshold is never reached, the CMC
      handler simply behaves as it does today.
      
         It's useful to get the CMC logs to know that something isn't
      quite right, but if you end up with some bad memory it's too easy for
      them to interfere with useful work.  I've tested this on an HP rx2600,
      with a known bad DIMM.  This DIMM acts like it has a completely dead
      DRAM on it.  With the current CMC handler, once I hit that range of
      memory addresses, the system essentially dies, constantly handling
      CMC errors.  With this patch, the system hits the threshold quickly,
      but remains functional with no performance degredation once in polling
      mode.  This patch applies against linux-2.4.20-ia64-021210 and 
      includes:
      
       - Switching CMCs to polling mode at predeterimined threshold
       - If polling for CPEs, poll on all processors
       - Fix timestamp on log output
      26abebb8
    • David Mosberger's avatar
      ia64: Drop unused NEW_LOCK spinlock code and clean up unneeded test · c461783b
      David Mosberger authored
      	in kernel unwinder.
      c461783b
  2. 06 Mar, 2003 9 commits
  3. 04 Mar, 2003 29 commits