1 files changed, 7 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 189df0bcab99..0a3fed445249 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -497,6 +497,13 @@ and is between 256 and 4096 characters. It is defined in the file
                         [KNL] Reserve a chunk of physical memory to
                         hold a kernel to switch to with kexec on panic.
 
+        crashkernel=range1:size1[,range2:size2,...][@offset]
+                        [KNL] Same as above, but depends on the memory
+                        in the running system. The syntax of range is
+                        start-[end] where start and end are both
+                        a memory unit (amount[KMG]). See also
+                        Documentation/kdump/kdump.txt for a example.
+
         cs4232=         [HW,OSS]
                         Format: <io>,<irq>,<dma>,<dma2>,<mpuio>,<mpuirq>