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authordwheeler <dwheeler@88473608-6f18-0410-8b6c-91216bd3049c>2009-06-03 21:44:56 +0000
committerdwheeler <dwheeler@88473608-6f18-0410-8b6c-91216bd3049c>2009-06-03 21:44:56 +0000
commitaf66f5a7e59232f4da625e91f1585bea5736ecdb (patch)
tree972cdeb9a8dbe37b10fca740bcb684832b551dfe /README
parent155993b92be3d3458f16df1a066ab8dce43ce5be (diff)
Document temporary clean-up steps
git-svn-id: svn+ssh://svn-nitpicker.cl.cam.ac.uk/linpicker/trunk@533 88473608-6f18-0410-8b6c-91216bd3049c
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diff --git a/README b/README
index 6f5d064..51ef077 100644
--- a/README
+++ b/README
@@ -279,3 +279,16 @@ Temporarily, to shut down server:
Currently clients must have a different IP address than the server.
+Currently linpicker doesn't "clean up" after itself. When it's asked to create a shared buffer with the VM, it does a block attachment... but once that's done, it's never released when the server ends or restarts. You have to clean it up yourself, or it won't work.
+
+Change the '2' below to whatever the VM id is.
+
+To see if there's anything to clean up:
+# /usr/sbin/xm block-list 2
+
+If you see a block with id of 51700 or more at the end, then you have a more-recent allocation that needs cleaning up.
+
+You need to use block-detach to do the detaching; here's a way to do that in one line (replace both "2"s with the VM id):
+
+# /usr/sbin/xm block-detach 2 `/usr/sbin/xm block-list 2 | tail -1 | cut -f1 -d ' '`
+