Date: Tue, 10 Dec 2013 15:43:16 -0800 From: hiren panchasara <hiren.panchasara@gmail.com> To: freebsd-dtrace@freebsd.org Subject: Examples from www.dtracebook.com Message-ID: <CALCpEUFnwN%2BmwTDyq-_q3x8jkk8EBfzMMyRzVeHDrHq=j-nqVg@mail.gmail.com>
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http://www.dtracebook.com/index.php/Introduction_to_DTrace:read-syscall.d $ sudo dtrace -n 'syscall::read:entry /execname != "dtrace"/ { @reads[execname, fds[arg0].fi_pathname] = count(); }' dtrace: invalid probe specifier syscall::read:entry /execname != "dtrace"/ { @reads[execname, fds[arg0].fi_pathname] = count(); }: in action list: fds has not yet been declared or assigned This is on FreeBSD -head. $ sudo dtrace -l | grep " read entry" 49341 syscall freebsd32 read entry 50413 syscall freebsd read entry What am I missing? What does "invalid probe specifier " mean here? cheers, Hiren
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