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From: "George V. Neville-Neil" <gnn@FreeBSD.org>
Date: Tue, 20 Jul 2010 17:57:10 +0000 (UTC)
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X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/sys/dev/hwpmc hwpmc_core.c hwpmc_core.h
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gnn         2010-07-20 17:57:10 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    sys/dev/hwpmc        hwpmc_core.c hwpmc_core.h 
  Log:
  SVN rev 210302 on 2010-07-20 17:57:10Z by gnn
  
  MFC r210012:
  
  Fix a panic brought about by writing an MSR without a proper mask.
  All of the necessary wrmsr calls are now preceded by a rdmsr
  and we leave the reserved bits alone.
  Document the bits in the relevant registers for future reference.
  
  Tested by: mdf
  
  Revision  Changes    Path
  1.4.4.7   +32 -13    src/sys/dev/hwpmc/hwpmc_core.c
  1.1.4.3   +54 -0     src/sys/dev/hwpmc/hwpmc_core.h