* multipath must be able to open a file descriptor for each path that it monitors, plus 32 other file descriptors. By default, multipath can open 1024 file descriptors, which is sufficient for it to monitor 992 paths. If multipath is not able to open all the file descriptors that it needs, the multipath daemon will not function correctly, and in Red Hat Enterprise Linux 5.3, this situation exposes a kernel memory leak that can cause a system to stop responding. Previously, multipath would not warn users that it could not open enough file descriptors. Now, when multipath runs out of file descriptors, it prints an error message. System administrators can allow multipath to open more file descriptors by setting "max_fds" in the multipath.conf file to a sufficiently high number, or by setting "max_fds" to "max" to allow multipath to open as many file descriptors as the system allows.