On Thu, May 12, 2022 at 10:07:26PM +1000, Michael Ellerman wrote:

Michael Ellerman [off-list ref] writes:

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Luis Chamberlain [off-list ref] writes:

...

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Can someone try this on ppc64le system? At this point I am not convinced
this issue is generic.

Does your x86 system have at least 784 CPUs?

I don't know where the original report came from, but the trace shows
"CPU 784", which would usually indicate a system with at least that many
CPUs.

Update, apparently the report originally came from IBM, so I'll chase it
up internally.

I think you're right that there's probably no issue in the module code,
sorry to waste your time.

It gives me testing happiness to know that may be the case :)

  Luis