K 10 svn:author V 7 dchagin K 8 svn:date V 27 2011-02-20T07:58:30.709899Z K 7 svn:log V 170 Do not clobber %rdx. Before calling vfork() syscall the linux user-space stores the current PID in the %rdx and restore it when the parent process will leave the kernel. END