cvs commit: src/sys/sparc64/sparc64 mp_machdep.c

[Marius Strobl]

marius      2006-09-03 21:20:21 UTC

  FreeBSD src repository

  Modified files:
    sys/sparc64/sparc64  mp_machdep.c 
  Log:
  Do as the USII CPU manual suggests and leave interrupts enabled
  for a bit before retrying to resend an IPI in order to avoid
  deadlocks if the other CPU is also trying to send one.
  OpenSolaris uses a delay of 1 microsecond here but waiting 2
  microseconds with interrupts enabled like Linux does shouldn't
  hurt but is a bit safer.
  
  MFC after:      1 day
  
  Revision  Changes    Path
  1.33      +6 -0      src/sys/sparc64/sparc64/mp_machdep.c