On Wed, Feb 24, 2010 at 5:30 AM, Li Zefan <lizf@xxxxxxxxxxxxxx> wrote: >> + ret = dprintf(event_control, "%d %d %s", efd, cfd, argv[2]); > > I found it won't return negative value for invalid input, though > errno is set properly. It looks like a glibc bug. I've file bug to glibc bugzilla: http://sourceware.org/bugzilla/show_bug.cgi?id=11319 I'll fix cgroup_event_listener.c. Thanks! > try: > # ./cgroup_event_listner /cgroup/cgroup.procs abc > > while strace shows write() does return -1: > > # strace ./cgroup_event_listner /cgroup/cgroup.procs abc > ... > write(6, "7 5 abc"..., 7) = -1 EINVAL (Invalid argument) > >> + if (ret == -1) { >> + perror("Cannot write to cgroup.event_control"); >> + goto out; >> + } > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@xxxxxxxxxx For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a> > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href