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From: Marcel Moolenaar <marcel@FreeBSD.org>
Date: Sat, 14 May 2011 14:47:19 +0000 (UTC)
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Subject: cvs commit: src/sys/ia64/ia64 exception.S
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marcel      2011-05-14 14:47:19 UTC

  FreeBSD src repository

  Modified files:
    sys/ia64/ia64        exception.S 
  Log:
  SVN rev 221893 on 2011-05-14 14:47:19Z by marcel
  
  Sharpening the saw:
  o   Clobber the register that holds the restart token immediately after
      crossing the restart point. This prevents false positives (i.e. a
      nested exception that we don't know can happen and that is being
      treated as one we know by virtue of a lingering restart token).
  o   Now that the bootstrap kernel stack is free, switch onto it and call
      trap() for nested traps that we don't know about. In trap we panic()
      so that we can analyze the condition.
  
  Revision  Changes    Path
  1.75      +12 -8     src/sys/ia64/ia64/exception.S