1 files changed, 11 insertions, 0 deletions

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 34a363f91b46..a5f4004e8705 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2877,6 +2877,17 @@
                         /sys/module/printk/parameters/console_suspend) to
                         turn on/off it dynamically.
 
+        novmcoredd      [KNL,KDUMP]
+                        Disable device dump. Device dump allows drivers to
+                        append dump data to vmcore so you can collect driver
+                        specified debug info.  Drivers can append the data
+                        without any limit and this data is stored in memory,
+                        so this may cause significant memory stress.  Disabling
+                        device dump can help save memory but the driver debug
+                        data will be no longer available.  This parameter
+                        is only available when CONFIG_PROC_VMCORE_DEVICE_DUMP
+                        is set.
+
         noaliencache    [MM, NUMA, SLAB] Disables the allocation of alien
                         caches in the slab allocator.  Saves per-node memory,
                         but will impact performance.