K 10
svn:author
V 7
davidxu
K 8
svn:date
V 27
2012-07-10T05:45:13.183402Z
K 7
svn:log
V 305
Always clear p_xthread if current thread no longer needs it, in theory, if
debugger exited without calling ptrace(PT_DETACH), there is a time window
that the p_xthread may be pointing to non-existing thread, in practical,
this is not a problem because child process soon will be killed by parent
process.

END