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

Alan Cox alc at
Tue Sep 26 21:53:43 PDT 2006

alc         2006-09-27 04:53:40 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/sparc64/sparc64  tsb.c 
  MFC revision 1.38
    The sparc64/sparc64/pmap.c implementations of pmap_remove(),
    pmap_protect(), and pmap_copy() have optimizations for regions
    larger than PMAP_TSB_THRESH (which works out to 16MB).  This
    caused a panic in tsb_foreach for kernel mappings, since
    pm->pm_tsb is NULL in that case.  This fix teaches tsb_foreach
    to use the kernel's tsb in that case.
  Approved by: re (mux)
  Revision  Changes    Path  +15 -6     src/sys/sparc64/sparc64/tsb.c

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