On 2021-07-26 21:56, Qian Cai wrote:

On 7/26/2021 4:36 PM, Robin Murphy wrote:

quoted

The important point you're missing, but which the KASAN dump does hint at, is
that that is a machine with SBSA generic UARTs booting via ACPI - I know it
doesn't do DT at all because I have one too. What matters there is that pl011
binds as a platform driver, *not* an amba driver.

Thanks for pointing out, Robin. I just yet to see an ARM server booting from DT
those days.

Unlikely in production datacentre/cloud environments, indeed, although 
some of the mid-range kit like LX2160 does start to blur the line of 
what might be considered "server", and that's one example which *does* 
have full-featured DT support (even if it also aspires to ACPI...)

What I thought was worth clarifying for the general audience is that the 
relevant aspects of "server" here should in fact still be possible to 
reproduce on something like a Raspberry Pi or a tiny QEMU VM, if one can 
figure out the ACPI runes :)

Thanks,
Robin.