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From: Marcel Moolenaar <marcel@FreeBSD.org>
Date: Sun, 12 Jul 2009 03:53:52 +0000 (UTC)
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Subject: cvs commit: src/sys/nfs nfs_common.c
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marcel      2009-07-12 03:53:52 UTC

  FreeBSD src repository

  Modified files:
    sys/nfs              nfs_common.c 
  Log:
  SVN rev 195631 on 2009-07-12 03:53:52Z by marcel
  
  Revert rev 192323 (nfs_common.c only):
  The D-cache flushing added here was to deal with I-cache
  incoherency observed on ia64. However, the problem was
  in the implementation of pmap_enter_object() for ia64:
  it was missing I-cache coherency logic for prefaulted
  pages. After this got added in rev 195625, testing showed
  that no D-cache flushing was required.
  
  The SIGILL that was observed on Book-E (see commit log
  for rev 192323) ended up not being related to I-cache
  incoherency, but was found to be caused by bad memory.
  This discovery further undermined the need for D-cache
  flushing in the NFS I/O code, triggering the reversal.
  
  Approved by:    re (kensmith)
  
  Revision  Changes    Path
  1.122     +2 -3      src/sys/nfs/nfs_common.c