SCT tool will generate large memory fragment after SCT completion and clicking Test Report Generator. (Bugzilla Bug 4500)

[tianocore-issues]

This issue was created automatically with bugzilla2github

Bugzilla Bug 4500

Date: 2023-07-13T22:15:50+00:00
From: zhouyf12
To: unassigned <>
CC: edhaya.chandran

Last updated: 2024-09-05T10:19:07+00:00

[tianocore-issues]

Comment 21714

Date: 2023-07-13 22:15:50 +0000
From: zhouyf12

• Industry Specification: ---
• Release Observed: EDK II Master
• Releases to Fix: EDK II Master
• Target OS: ---
• Bugzilla Assignee(s): unassigned <>

Created attachment 1382
memory map before generating report

When we complete SCT and then click "Test Report Generator" to generate report, system will generate large memory fragment which will prevent system from boot to Windows directly with the behavior above

Attachment: BZ-1382-memory map before generating report.txt

[tianocore-issues]

Comment 21715

Date: 2023-07-13 22:16:08 +0000
From: zhouyf12

Created attachment 1383
memory map after generating report.txt

Attachment: BZ-1383-memory map after generating report.txt.txt

[tianocore-issues]

Comment 22519

Date: 2024-02-04 13:56:02 +0000
From: Edhay <<edhaya.chandran>>

Hi Zhou,

Thank you for reporting this issue.

A comment:
While using the SCT as part of the Arm SystemReady ACS, we had encountered a similar issue. After SCT run, booting Linux failed.
We added a reset after the SCT run to avoid any impact the SCT execution.

SCT is a complex suite, and it exercise memory map throughout its execution (not only while generating report). This issue may be complex to analyze and solve. It was not pursued further then.

Do you have any real use-case to boot Windows soon after SCT?
Can a reset of the system not be done, prior to Windows boot?

[tianocore-issues]

Comment 22523

Date: 2024-02-04 22:06:40 +0000
From: zhouyf12

Hi Edhay,

If we do not generate report for SCT, the system could boot into Windows soon as normal.
For the issue I describe, I think that the generated memory fragment is too much which can not meet the requirement of OS boot.

[tianocore-issues]

Comment 22748

Date: 2024-03-07 09:28:12 +0000
From: Edhay <<edhaya.chandran>>

Hi Zhou,

How does this process prevent the windows from booting? Is an exception generated?

From your results its clear that Generate Test Results is causing the OS boot to fail.
Could you further debug and provide a patch?

[tianocore-issues]

Comment 22750

Date: 2024-03-08 00:47:33 +0000
From: zhouyf12

Hi Edhay，

I think it is the issue of SCT tool and I do not have any solution about that.
We need relevant owner of SCT to take a look.

[tianocore-issues]

Comment 23380

Date: 2024-09-05 10:19:07 +0000
From: Edhay <<edhaya.chandran>>

Update on 5th Sept 2024

Lenovo has coding standards to uncover similar issues (allocateBuffer and freeBuffer).
They will check internally if they can give the effort to take up this issue.