cvs commit: src/sys/ia64/ia64 pmap.c

[Marcel Moolenaar]

marcel      2003/05/26 15:54:18 PDT

  FreeBSD src repository

  Modified files:
    sys/ia64/ia64        pmap.c 
  Log:
  Revision 1.99 of this file changed the allocation request from
  VM_ALLOC_INTERRUPT to VM_ALLOC_SYSTEM. There was no mention of
  this in commit log as it was considered harmless. Guess what:
  it does harm. WITNESS showed that we can not safely grab the
  page queue lock in vm_page_alloc() in all cases as we may have
  to sleep on it. Revert the request to VM_ALLOC_INTERRUPT to
  circumvent this. We panic if vm_page_alloc returns 0. I'm not
  entirely happy about this, but we have bigger fish to fry.
  
  Approved by: re@ (blanket)
  
  Revision  Changes    Path
  1.107     +1 -1      src/sys/ia64/ia64/pmap.c