[edk2-devel] [PATCH v2 1/1] OvmfPkg:Add variable store is full debug info

["Zhenyu Zhang" <zhenyzha@redhat.com>]

From: "Zhenyu Zhang" <zhenyzha@redhat.com>

When the variable store is full, edk2 will directly assert.
Add debug information to help users understand what caused
the assertion.

 Actual results:
 RecordVarErrorFlag (0xEF) 9A144FE2A47E:937FE521-95AE-4D1A-8929-
 48BCD90AD31A - 0x00000003 - 0x7E
 CommonVariableSpace = 0x3FF9C - CommonVariableTotalSize =
 0x3FF98
 RecordVarErrorFlag (0xEF) 9A144FE2A47E:937FE521-95AE-4D1A-8929-
 48BCD90AD31A - 0x00000003 - 0x92
 CommonVariableSpace = 0x3FF9C - CommonVariableTotalSize = 0x3FF98

 Synchronous Exception at 0x000000023CA60374
 ......
 ASSERT_EFI_ERROR (Status = Out of Resources)
 ASSERT /builddir/build/BUILD/edk2-ba91d0292e59/OvmfPkg/Library/
 PlatformBootManagerLib/BdsPlatform.c(142): !(((INTN)(RETURN_
 STATUS)(Status)) < 0)

Cc: Oliver Steffen <osteffen@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>                      
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: Stefan Berger <stefanb@linux.ibm.com>
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Julien Grall <julien@xen.org>
Signed-off-by: Zhenyu Zhang <zhenyzha@redhat.com>
---
 OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
index 8dc2bbf97371..c95c7931a3f5 100644
--- a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
+++ b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
@@ -139,6 +139,7 @@ PlatformRegisterFvBootOption (
 
   if (OptionIndex == -1) {
     Status = EfiBootManagerAddLoadOptionVariable (&NewOption, MAX_UINTN);
+    DEBUG ((DEBUG_ERROR, "ERROR: Variable store is full.\n"));
     ASSERT_EFI_ERROR (Status);
   }
 
-- 
2.39.3



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