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Date: Tue, 28 May 1996 22:12:26 -0700 (PDT)
From: John Dyson <dyson>
Message-Id: <199605290512.WAA06661@freefall.freebsd.org>
To: CVS-committers, cvs-all, cvs-sys
Subject: cvs commit:  src/sys/vm vm_map.c default_pager.c
Sender: owner-cvs-sys@FreeBSD.ORG
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dyson       96/05/28 22:12:25

  Modified:    sys/vm    vm_map.c default_pager.c
  Log:
  Make sure that pageout deadlocks cannot occur.  There is a problem
  that the datastructures needed to support the swap pager can take
  enough space to fully deplete system memory, and cause a deadlock.
  This change keeps large objects from being filled with dirty pages
  without the appropriate swap pager datastructures.  Right now,
  default objects greater than 1/4 the size of available system memory
  are converted to swap objects, thereby eliminating the risk of deadlock.
  
  Revision  Changes    Path
  1.48      +18 -2     src/sys/vm/vm_map.c
  1.8       +15 -7     src/sys/vm/default_pager.c