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if netmask == 0, then the loopback code can do some really

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bad things.
workaround for this: if netmask == 0, set it to 0x8000,
which is value used by splsoftclock
This commit is contained in:
Andrey A. Chernov 1993-11-14 23:53:32 +00:00
parent 0d04ba084f
commit de0edfd4e3
2 changed files with 16 additions and 2 deletions
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9
sys/amd64/isa/isa.c
View file

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)isa.c 7.2 (Berkeley) 5/13/91
* $Id: isa.c,v 1.6 1993/11/07 21:47:19 wollman Exp $
* $Id: isa.c,v 1.7 1993/11/09 02:12:36 alm Exp $
*/
/*
@ -237,6 +237,13 @@ isa_configure() {
netmask |= ttymask;
ttymask |= netmask;
#endif
/* if netmask == 0, then the loopback code can do some really
* bad things.
* workaround for this: if netmask == 0, set it to 0x8000,
* which is value used by splsoftclock
*/
if (netmask == 0)
netmask = 0x8000; /* same as for softclock from icu.s */
/* biomask |= ttymask ; can some tty devices use buffers? */
printf("biomask %x ttymask %x netmask %x\n", biomask, ttymask, netmask);
splnone();

9
sys/i386/isa/isa.c
View file

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)isa.c 7.2 (Berkeley) 5/13/91
* $Id: isa.c,v 1.6 1993/11/07 21:47:19 wollman Exp $
* $Id: isa.c,v 1.7 1993/11/09 02:12:36 alm Exp $
*/
/*
@ -237,6 +237,13 @@ isa_configure() {
netmask |= ttymask;
ttymask |= netmask;
#endif
/* if netmask == 0, then the loopback code can do some really
* bad things.
* workaround for this: if netmask == 0, set it to 0x8000,
* which is value used by splsoftclock
*/
if (netmask == 0)
netmask = 0x8000; /* same as for softclock from icu.s */
/* biomask |= ttymask ; can some tty devices use buffers? */
printf("biomask %x ttymask %x netmask %x\n", biomask, ttymask, netmask);
splnone();