From owner-cvs-all  Sat Oct 30  8:20:45 1999
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From: Andrew Gallatin <gallatin@FreeBSD.org>
Date: Sat, 30 Oct 1999 08:20:32 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/alpha/alpha swtch.s
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gallatin    1999/10/30 08:20:32 PDT

  Modified files:
    sys/alpha/alpha      swtch.s 
  Log:
  Don't lower the ipl when returning from handling an interrupt.
  If the ipl is lowered here, a machine can rapidly run out of stack
  space when it is under heavy interrupt load.   Without this fix,
  my test machine would fall over within a few seconds when forwarding
  14,000 packets/sec.  With the patch, it has been up for over 24 hours
  and has built the world at the same time.
  
  submitted by: dfr@freebsd.org
  
  Revision  Changes    Path
  1.12      +1 -4      src/sys/alpha/alpha/swtch.s



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