stubdom: Fix stubdom-dm using "grep" improperly

stubdom-dm uses "grep" on "xm list" output to determine whether it is already running. The existing behavior is to use "grep $domname-dm" but this will result in a false-positive in the case of another domU running whose name ends with the full new name; for instance, if "abctest-dm" is running, a new "test-dm" will spin forever, waiting for it the end. Any easy fix is to have it use "grep -w" instead of "grep", searching for the whole word only. It also might be worth considering a switch to "xl list" from "xm list", here and in other places. Signed-off-by: John Weekes <[email protected]> Committed-by: Ian Jackson <[email protected]>
vireshk · Jan 11, 2011 · 1676d94 · 1676d94
1 parent b3c8bef
commit 1676d94
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/stubdom/stubdom-dm b/stubdom/stubdom-dm
@@ -91,7 +91,7 @@ trap term SIGHUP
 ############
 # stubdomain
 # Wait for any previous stubdom to terminate
-while xm list | grep $domname-dm
+while xm list | grep -w $domname-dm
 do
 	sleep 1
 done