Re: kern/50395: Loss of characters in serial port communication between gdb and kgdb_stub

[christos%zoulas.com@localhost (Christos Zoulas)]

The following reply was made to PR kern/50395; it has been noted by GNATS.

From: christos%zoulas.com@localhost (Christos Zoulas)
To: gnats-bugs%NetBSD.org@localhost, kern-bug-people%netbsd.org@localhost, 
	gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/50395: Loss of characters in serial port communication between gdb and kgdb_stub
Date: Mon, 2 Nov 2015 11:24:00 -0500

 On Nov 2,  4:10pm, vchaves%ymail.com@localhost (vchaves%ymail.com@localhost) wrote:
 -- Subject: kern/50395: Loss of characters in serial port communication betwe
 
 Perhaps this?
 
 --- com.c       4 May 2015 22:59:36 -0000       1.336
 +++ com.c       2 Nov 2015 16:23:11 -0000
 @@ -377,7 +377,7 @@
  {
  
         /* Turn on line break interrupt, set carrier. */
 -       sc->sc_ier = IER_ERXRDY;
 +       sc->sc_ier = IER_ERLS;
         if (sc->sc_type == COM_TYPE_PXA2x0)
                 sc->sc_ier |= IER_EUART | IER_ERXTOUT;
         if (sc->sc_type == COM_TYPE_INGENIC ||
 @@ -812,7 +812,10 @@
  
         /* Turn off interrupts. */
         if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE)) {
 -               sc->sc_ier = IER_ERXRDY; /* interrupt on break */
 +               if (ISSET(sc->sc_hwflags, COM_HW_KGDB))
 +                       sc->sc_ier = IER_ERLS; /* interrupt on line break */
 +               else
 +                       sc->sc_ier = IER_ERXRDY; /* interrupt on receive */
                 if ((sc->sc_type == COM_TYPE_PXA2x0) ||
                     (sc->sc_type == COM_TYPE_INGENIC) ||
                     (sc->sc_type == COM_TYPE_TEGRA))
 
 
 Or do we always want ERLS on shutdown?
 
 christos