[PATCH] sn2: serialize access to PROM chips

From: Jesse Barnes <jbarnes_at_engr.sgi.com>
Date: 2004-09-29 07:57:18
If we read and write the PROM chips at the same time, as might happen at boot 
when salinfo extracts MCA records and a user is checking the PROM revision 
in /proc/sgi_prominfo, an MCA might occur, since the PROM chips can't be 
accessed that way.  This patch fixes the problem for systems with new PROMs 
(>= 3.50) by using the SAL to do PROM reads.

Signed-off-by: Jesse Barnes <jbarnes@sgi.com>


To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Received on Tue Sep 28 17:59:25 2004

This archive was generated by hypermail 2.1.8 : 2005-08-02 09:20:31 EST