document mkfs.reiserfs memory-consumption issues

diff --git a/README b/README
index 7b37d1f7e2da98b0846f3cb0568b031dcb9c54ca..1c5eda908f205db33ece237b05aee210859d5dd9 100644 (file)
--- a/README
+++ b/README
@@ -57,11 +57,17 @@ other lower-level operation than was expected.  The diff lines will contain
 a file type (e.g., "f" for files or "d" for directories), and then a
 lower-level name that shouldn't appear, or does appear.
 
-Note: reiser4 appears to be broken, so can't test with it.  Tried  reiser4
-for 2.6.21, but right on mount, getting an error:
+Notes:
+
+1. Reiser4 appears to be broken, so can't test with it.  Tried reiser4 for
+   2.6.21, but right on mount, getting an error:
 
        BUG: sleeping function called from invalid context at kernel/rwsem.c:20
 
+2. mkfs.reiserfs tends to consume a lot more memory than a typical mkfs.foo
+   command.  So if you noticed that mkfs.reiserfs is running excessively
+   slow, you'll need more memory in your machine (or virtual machine).
+
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 NFS Tests
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