docs: add to ipoib known issues

The additional comment below is to a request from Pradeep Satyanarayana
who opened bugzilla 1821.

Signed-off-by: Moni Shoua <monis@voltaire.com>

diff --git a/ipoib_release_notes.txt b/ipoib_release_notes.txt
index 2d1217ad752da0eddf9b40a55331f66b3cfd8dd0..0aba56d2b30b5ae1149364fed432822cbe5de5c2 100644 (file)
--- a/ipoib_release_notes.txt
+++ b/ipoib_release_notes.txt
@@ -174,6 +174,11 @@ Usage and configuration:
 15. IPoIB multicast support is broken in RH4.x kernels. This is because
     ndisc_mc_map() does not handle IPOIB hardware addresses.
 
+16. If bonding uses IPoIB slave then unenslaving all slaves (or downing them
+     with ifdown) followed by unloading the module ib_ipoib might crash the
+     kernel. To avoid this leave the IPoIB interfaces enslaved when unloading
+     ib_ipoib.
+
 ===============================================================================
 4. IPoIB Configuration Based on DHCP
 ===============================================================================