X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Fsample_app_ug%2Fvhost.rst;h=b7ed4f8bdf76b387dca88ba3aaa80eb1dea06fc9;hb=5bf52c656e243666c70cc6203963cca71b9d476d;hp=a71ada6549fa94388205455f17c2785ad0e99719;hpb=d629b7b5fe812f0040b83d27d2ada33b003aa918;p=dpdk.git

diff --git a/doc/guides/sample_app_ug/vhost.rst b/doc/guides/sample_app_ug/vhost.rst
index a71ada6549..b7ed4f8bdf 100644
--- a/doc/guides/sample_app_ug/vhost.rst
+++ b/doc/guides/sample_app_ug/vhost.rst
@@ -201,3 +201,10 @@ Common Issues
 
   QEMU vhost net device start will fail if protocol feature is not negotiated.
   DPDK virtio-user pmd can be the replacement of QEMU.
+
+* Device start fails when enabling "builtin-net-driver" without memory
+  pre-allocation
+
+  The builtin example doesn't support dynamic memory allocation. When vhost
+  backend enables "builtin-net-driver", "--socket-mem" option should be
+  added at virtio-user pmd side as a startup item.