Author: nwhitehorn
Date: Fri Oct 29 00:36:44 2010
New Revision: 214494
URL: http://svn.freebsd.org/changeset/base/214494
Log:
Fix netboot on some Apple machines on which calling dma-free on the
network device can hang the machine. This causes the loss of 64 KB of
accessible memory on netbooted machines.
Modified:
head/sys/boot/ofw/libofw/ofw_net.c
Modified: head/sys/boot/ofw/libofw/ofw_net.c
==============================================================================
--- head/sys/boot/ofw/libofw/ofw_net.c Thu Oct 28 23:46:05 2010
(r214493)
+++ head/sys/boot/ofw/libofw/ofw_net.c Fri Oct 29 00:36:44 2010
(r214494)
@@ -230,7 +230,10 @@ punt:
static void
ofwn_end(struct netif *nif)
{
+#ifdef BROKEN
+ /* dma-free freezes at least some Apple ethernet controllers */
OF_call_method("dma-free", netinstance, 2, 0, dmabuf, MAXPHYS);
+#endif
OF_close(netinstance);
}
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