Once grant refs run out, netfront prints a nice message, but doesn''t
set
err properly to notify the caller, and the domU crashes. (See bug 183 for
details).
Signed-off-by: Jim Dykman <dykman@us.ibm.com>
diff -r e70ea9465b31 linux-2.6-xen-sparse/drivers/xen/netfront/netfront.c
--- a/linux-2.6-xen-sparse/drivers/xen/netfront/netfront.c Thu Oct 27
09:53:02 2005
+++ b/linux-2.6-xen-sparse/drivers/xen/netfront/netfront.c Fri Oct 28
12:21:01 2005
@@ -877,6 +877,7 @@
if (gnttab_alloc_grant_references(NETIF_TX_RING_SIZE,
&np->gref_tx_head) < 0) {
printk(KERN_ALERT "#### netfront can''t alloc tx
grant
refs\n");
+ err=-ENOMEM;
goto exit;
}
/* A grant for every rx ring slot */
@@ -884,6 +885,7 @@
&np->gref_rx_head) < 0) {
printk(KERN_ALERT "#### netfront can''t alloc rx
grant
refs\n");
gnttab_free_grant_references(np->gref_tx_head);
+ err=-ENOMEM;
goto exit;
}
Jim
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