K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2011-01-25T20:33:12.010025Z
K 7
svn:log
V 824
MFC 211514,214158:
- There isn't really a need to hold the ktrace mutex just to read the
  value of p_traceflag that is stored in the kinfo_proc structure.
- When disabling ktracing on a process, free any pending requests that
  may be left.  This fixes a memory leak that can occur when tracing is
  disabled on a process via disabling tracing of a specific file (or if
  an I/O error occurs with the tracefile) if the process's next system
  call is exit().  The trace disabling code clears p_traceflag, so exit1()
  doesn't do any KTRACE-related cleanup leading to the leak.  I chose to
  make the free'ing of pending records synchronous rather than patching
  exit1().
- Move KTRACE-specific logic out of kern_(exec|exit|fork).c and into
  kern_ktrace.c instead.  Make ktrace_mtx private to kern_ktrace.c as a
  result.

END