diag0(7) — Series 800 Only

NAME

diag0 - diagnostic interface to I/O subsystem

DESCRIPTION

diag0 is the diagnostic pseudo-driver used by the on-line diagnostic subsystem. The kernel sends diagnostic events here for logging by the diagnostic subsystem. The diagnostic subsystem also sends diagnostic requests to the kernel via diag0.

WARNINGS

If the diagnostic subsystem does not read diagnostic events from diag0 as fast as they are logged by the kernel, a warning message Warning: DIAG0 -- message queue full appears on the console.

AUTHOR

diag0 was developed by HP.

FILES

/stand/vmunix

/dev/diag0

/dev/diag/diag0

/dev/diag directory containing diagnostic device files