Appendix D: Platform-Dependent Workarounds#

Some Grace platforms require temporary (or permanent) alterations to their configurations to work around known issues, such as hardware errata. These workarounds are described in the following sections by the corresponding Grace platform.

D.1 All Grace Platforms#

Starting with linux-nvidia-64k-6.11 and later versions, the ffa-module is integrated into the kernel. The following kernel messages are displayed:
```
[   33.757800] ARM FF-A: Driver version 1.2
[   33.766080] ARM FF-A: Firmware version 1.1 found
[   33.775832] GICv3: [Firmware Bug]: Illegal GSI5 translation request
[   33.788966] ARM FF-A: Failed to create IRQ mapping!
```
The GICv3 Firmware Bug and IRQ mapping failure can be safely ignored. The ffa-module will still load successfully and function normally.
Starting with linux-nvidia-64k-6.11 and later versions, the Generic Hardware Error Source (GHES) driver has been modified to respect the panic= kernel parameter instead of overriding it to trigger a system reboot after fatal hardware error detection. If panic= is disabled, the error will be logged to the console, but the system will not automatically reboot.

To restore previous kernel behavior, the administrator must complete one of the following tasks:
- Set panic=<value> in kernel command line.
- Modify /proc/sys/kernel/panic value.
- Modify kernel.panic sysctl parameter.