jeff@voder.UUCP (Jeff Gilliam) (11/14/86)
Index: sys/vax/cons.c 4.3BSD
Description:
When booting a VAX may appear to hang between the last
autoconfiguration message and going multi-user. Typing
any character at the console unhangs the system.
Repeat-By:
Use a slow console and configure lots of devices. Or,
type a ^S followed by a ^Q on the console while booting.
Fix:
Fix cnputc() to honor flow control.
RCS file: RCS/cons.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -c -r1.1 -r1.2
*** /tmp/,RCSt1002397 Fri Nov 14 00:13:41 1986
--- /tmp/,RCSt2002397 Fri Nov 14 00:13:42 1986
***************
*** 192,197 ****
--- 188,197 ----
{
register int s, timo;
+ if (mfpr(RXCS)&RXCS_DONE && (mfpr(RXDB)&0177) == CTRL(S))
+ while ((mfpr(RXCS)&RXCS_DONE) == 0 ||
+ (mfpr(RXDB)&0177) != CTRL(Q))
+ ;
timo = 30000;
/*
* Try waiting for the console tty to come ready,
--
Jeff Gilliam {ucbvax,pyramid,nsc}!voder!jeff