svn commit: r219702 - head/sys/boot/i386/common
Andrey V. Elsukov
ae at FreeBSD.org
Wed Mar 16 20:04:56 UTC 2011
Author: ae
Date: Wed Mar 16 20:04:56 2011
New Revision: 219702
URL: http://svn.freebsd.org/changeset/base/219702
Log:
Set control flags in putc(). This should fix zfsboot hangs in drvread().
PR: kern/153552
Reviewed by: jhb
MFC after: 1 week
Modified:
head/sys/boot/i386/common/cons.c
Modified: head/sys/boot/i386/common/cons.c
==============================================================================
--- head/sys/boot/i386/common/cons.c Wed Mar 16 17:09:51 2011 (r219701)
+++ head/sys/boot/i386/common/cons.c Wed Mar 16 20:04:56 2011 (r219702)
@@ -37,6 +37,7 @@ void
putc(int c)
{
+ v86.ctl = V86_FLAGS;
v86.addr = 0x10;
v86.eax = 0xe00 | (c & 0xff);
v86.ebx = 0x7;
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