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

[Marius Strobl]

marius      2005-04-30 16:19:05 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_5_4)
    sys/sparc64/sparc64  intr_machdep.c 
  Log:
  Merge from RELENG_5: 1.19.2.2
  
  Some changes to intr_execute_handlers():
  - Fix NULL pointer dereferences caused when an ithread or a handler is
    NULL which happens when a stray interrupt triggers after the respective
    device interrupt was torn down.
  - Remove the critical section around INTR_FAST handlers which actually
    was a nested critical section. Both tl0_intr() and tl1_intr() already
    enter a critical section for calling intr_execute_handlers().
  
  Approved by:    re (kensmith)
  
  Revision      Changes    Path
  1.19.2.1.2.1  +6 -6      src/sys/sparc64/sparc64/intr_machdep.c