From owner-cvs-sys  Tue Sep  5 15:38:10 1995
Return-Path: cvs-sys-owner
Received: (from majordom@localhost)
          by freefall.freebsd.org (8.6.11/8.6.6) id PAA09394
          for cvs-sys-outgoing; Tue, 5 Sep 1995 15:38:10 -0700
Received: (from se@localhost)
          by freefall.freebsd.org (8.6.11/8.6.6) id PAA09382
          ; Tue, 5 Sep 1995 15:38:02 -0700
Date: Tue, 5 Sep 1995 15:38:02 -0700
From: Stefan Esser <se>
Message-Id: <199509052238.PAA09382@freefall.freebsd.org>
To: CVS-commiters, cvs-sys
Subject: cvs commit: src/sys/pci ncr.c
Sender: cvs-sys-owner@FreeBSD.org
Precedence: bulk

se          95/09/05 15:38:02

  Modified:    sys/pci   ncr.c
  Log:
  The NCR script has grown beyond one page (4KB). Since malloc() returns
  contiguous memory in virtual space, but doesn't guarantee any particular
  physical layout of pages, the script may be not contguous in physical
  memory. This made the first write command fail in very rare cases.
  This has been fixed by checking the region returned by malloc() for
  being contiguous, but there should be a physical memory allocate
  and later mapping to virtual memory instead.
  
  A few assertions and error messages are improved.