dfail
dfail("failed to walk aggregate");
dfail("couldn't establish drop handler");
dfail("couldn't determine number of online CPUs");
dfail("failed to set 'bufsize'");
dfail("failed to set 'aggsize'");
dfail("failed to set 'dynvarsize'");
dfail("failed to set 'bufsize'");
dfail("failed to set 'statusrate'");
dfail("failed to set -x %s", optarg);
dfail("failed to stop dtrace");
dfail("failed to snap aggregate");
dfail("failed to walk aggregate");
dfail("failed to compile program");
dfail("failed to enable probes");
dfail("couldn't start tracing");
dfail("failed to get 'statusrate'");
dfail("failed to get 'statusrate'");
dfail("cannot create CLOCK_REALTIME timer");
dfail("cannot set time on CLOCK_REALTIME timer");
dfail("failed to snap aggregate");
dfail("dtrace_status()");
dfail("failed to consume buffer");