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-rw-r--r--Documentation/vm/hwpoison.rst3
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/vm/hwpoison.rst b/Documentation/vm/hwpoison.rst
index c742de1769d1..b9d5253c1305 100644
--- a/Documentation/vm/hwpoison.rst
+++ b/Documentation/vm/hwpoison.rst
@@ -120,7 +120,8 @@ Testing
unpoison-pfn
Software-unpoison page at PFN echoed into this file. This way
a page can be reused again. This only works for Linux
- injected failures, not for real memory failures.
+ injected failures, not for real memory failures. Once any hardware
+ memory failure happens, this feature is disabled.
Note these injection interfaces are not stable and might change between
kernel versions