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disable page zero in the idle loop on untested machines and pica for now. 

this kluge fixes a problem that commands dump core on NEC Image RISCstation
which seems to be OEM of pica.
This commit is contained in:
soda 2000-08-08 21:11:46 +00:00
parent 91537bce4a
commit 7f4849dc04
1 changed files with 14 additions and 1 deletions
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15
sys/arch/arc/arc/machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.42 2000/07/29 20:06:28 jdolecek Exp $ */
/* $NetBSD: machdep.c,v 1.43 2000/08/08 21:11:46 soda Exp $ */
/* $OpenBSD: machdep.c,v 1.36 1999/05/22 21:22:19 weingart Exp $ */
/*
@ -740,6 +740,19 @@ machine_ConfigCache()
mips_L2CachePresent = 1;
mips_L2CacheSize = 128 * 1024;
#endif
/*
* if page zero in the idle loop is enabled,
* commands dump core due to incoherent cache.
*/
vm_page_zero_enable = FALSE; /* XXX - should be enabled */
break;
case DESKSTATION_RPC44:
case DESKSTATION_TYNE:
case SNI_RM200:
case ALGOR_P4032:
case ALGOR_P5064:
/* XXX - use safe default, since those are not tested. */
vm_page_zero_enable = FALSE; /* XXX - should be enabled */
break;
case NEC_R94:
mips_L2CacheSize = 512 * 1024;