[PATCH v2 4/4] Documentation: Document hibernate=relaxed_memmap parameter option

Marco Scardovi <[email protected]> Tue, 23 Jun 2026 18:47:30 +0200
Newsgroups dev.linux.lists.regressions,org.kernel.vger.linux-kernel,org.kernel.vger.linux-pm
Message-ID <[email protected]>
Document the new 'relaxed_memmap' option under the 'hibernate=' kernel
boot parameters.

Assisted-by: Antigravity:gemini-3.5-flash

Signed-off-by: Marco Scardovi <[email protected]>
---
 Documentation/admin-guide/kernel-parameters.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index b5493a7f8f22..107935c585e4 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1967,6 +1967,11 @@ Kernel parameters
 		protect_image	Turn on image protection during restoration
 				(that will set all pages holding image data
 				during restoration read-only).
+		relaxed_memmap	[x86] Relax E820 memory map integrity check.
+				Instead of aborting resume on any mismatch,
+				only verify that the usable RAM layout remains
+				identical, and warning-only for shifts/changes
+				in reserved or ACPI ranges.
 
 	hibernate.compressor= 	[HIBERNATION] Compression algorithm to be
 				used with hibernation.
-- 
2.54.0