Hello Roy,

Which platform are you referring to? Which EDK2 DSC file are you using for your UEFI firmware?

Thanks,

Olivier

From: boot-architecture-bounces@lists.linaro.org [mailto:boot-architecture-bounces@lists.linaro.org] On Behalf Of Roy Franz
Sent: 12 June 2013 03:03
To: boot-architecture@lists.linaro.org
Subject: Possible race condition in multi-core EDK2

I've been working with the DEBUG build of EDK2, and thought I had changed the configuration to be 'proper' for a single core, and it ran fine on a single core simulation.  As I started removing debug prints, I started getting simulator seg faults.  I confirmed that the difference between running and crashing versions were simply debug prints.

Changing the simulation to simulator 2 cores resolved the problem.  I suspect that there may be a race condition or some other multi-core detection bug that causes this crash.

I don't plan to investigate this further at this point - just wanted to report this as I was surprised to find that a debug print being removed would cause the simulator to crash.

Roy