1 files changed, 43 insertions, 0 deletions
diff --git a/edk2-MdeModulePkg-Warn-if-out-of-flash-space-when-writing.patch b/edk2-MdeModulePkg-Warn-if-out-of-flash-space-when-writing.patch
new file mode 100644
index 0000000..2198b6f
--- /dev/null
+++ b/edk2-MdeModulePkg-Warn-if-out-of-flash-space-when-writing.patch
@@ -0,0 +1,43 @@
+From 880c1ca7420b873c5f81563b122d7bd1ebad72cb Mon Sep 17 00:00:00 2001
+From: Oliver Steffen <osteffen@redhat.com>
+Date: Mon, 4 Mar 2024 15:32:58 +0100
+Subject: [PATCH] MdeModulePkg: Warn if out of flash space when writing
+ variables
+
+RH-Author: Oliver Steffen <osteffen@redhat.com>
+RH-MergeRequest: 64: MdeModulePkg: Warn if out of flash space when writing variables
+RH-Jira: RHEL-43442
+RH-Acked-by: Gerd Hoffmann <None>
+RH-Commit: [1/1] b65130800090192f47f13d67ff14f902a4f5bfb5 (osteffen/edk2)
+
+Emit a DEBUG_WARN message if there is not enough flash space left to
+write/update a variable. This condition is currently not logged
+appropriately in all cases, given that full variable store can easily
+render the system unbootable.
+This new message helps identifying this condition.
+
+Signed-off-by: Oliver Steffen <osteffen@redhat.com>
+Reviewed-by: Laszlo Ersek <lersek@redhat.com>
+Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
+(cherry picked from commit 80b59ff8320d1bd134bf689fe9c0ddf4e0473b88)
+Signed-off-by: Oliver Steffen <osteffen@redhat.com>
+---
+ MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
+index d394d237a5..1c7659031d 100644
+--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
++++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
+@@ -2364,6 +2364,8 @@ Done:
+                   );
+       ASSERT_EFI_ERROR (Status);
+     }
++  } else if (Status == EFI_OUT_OF_RESOURCES) {
++    DEBUG ((DEBUG_WARN, "UpdateVariable failed: Out of flash space\n"));
+   }
+ 
+   return Status;
+-- 
+2.39.3
+