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From: Rui Paulo <rpaulo@FreeBSD.org>
Date: Sun, 12 Sep 2010 14:12:16 +0000 (UTC)
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Subject: cvs commit: src/sys/cddl/contrib/opensolaris/uts/common/dtrace
 fasttrap.c src/sys/cddl/contrib/opensolaris/uts/intel/dtrace
 fasttrap_isa.c
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rpaulo      2010-09-12 14:12:16 UTC

  FreeBSD src repository

  Modified files:
    sys/cddl/contrib/opensolaris/uts/common/dtrace fasttrap.c 
    sys/cddl/contrib/opensolaris/uts/intel/dtrace fasttrap_isa.c 
  Log:
  SVN rev 212494 on 2010-09-12 14:12:16Z by rpaulo
  
  Revamp locking a bit. This fixes three problems:
  * processes now can't go away while we are inserting probes (fixes a panic)
  * if a trap happens, we won't be holding the process lock (fixes a hang)
  * fix a LOR between the process lock and the fasttrap bucket list lock
  
  Thanks to kib for pointing some problems.
  Sponsored by:   The FreeBSD Foundation
  
  Revision  Changes    Path
  1.9       +23 -12    src/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c
  1.4       +3 -6      src/sys/cddl/contrib/opensolaris/uts/intel/dtrace/fasttrap_isa.c