Hi,
   I wonder if SYSCALL_DEBUG is still useful nowadays. It seems that
   ktrace is full replacement for it, and is better fine-grained
   and generally more useful anyway.
   If SYSCALL_DEBUG would be removed, it would siplify some source
   code.
   
   Does SYSCALL_DEBUG serve any useful purpose, and useful for some
   stuff ktrace can't be used? Anyone would mind if it would be removed
   altogether?


i've used it while debugging SMP kernels recently.



.mrg.