Author: grehan
Date: Thu May 14 21:08:48 2015
New Revision: 282922
URL: https://svnweb.freebsd.org/changeset/base/282922
Log:
Bump the size of the blockif scatter-gather list to 67.
The Windows virtio driver ignores the advertized seg_max
field and assumes the host can accept up to 67 segments
in indirect descriptors, triggering an assert in the bhyve
process.
No objection from: mav
Reviewed by: neel
Reported and tested by: Leon Dang (ld...@nahannisys.com)
MFC after: 2 weeks
Modified:
head/usr.sbin/bhyve/block_if.h
Modified: head/usr.sbin/bhyve/block_if.h
==============================================================================
--- head/usr.sbin/bhyve/block_if.h Thu May 14 20:19:22 2015
(r282921)
+++ head/usr.sbin/bhyve/block_if.h Thu May 14 21:08:48 2015
(r282922)
@@ -39,7 +39,7 @@
#include <sys/uio.h>
#include <sys/unistd.h>
-#define BLOCKIF_IOV_MAX 33 /* not practical to be IOV_MAX
*/
+#define BLOCKIF_IOV_MAX 67 /* not practical to be IOV_MAX
*/
struct blockif_req {
struct iovec br_iov[BLOCKIF_IOV_MAX];
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