Hi Frank!

I suppose the Niagara CPU gives the kernel issue

Frank Scheiner wrote:
If I remember there was a repository with many snapshots of different
versions, already as package, which one can test quickly. That way we
can restrict breakage range without git bisect.

Do you have a link?

I assume you mean "http://snapshot.debian.org"; .

Exactly. With this I did some more tests.

Still Works:
5.9.0-4-sparc64-smp #1 SMP Debian 5.9.11-1 (2020-11-27)
5.9.0-5-sparc64-smp #1 SMP Debian 5.9.15-1 (2020-12-17)



So later series 5.9 series continue to work and even very early 5.10 do not

Do you know if I can via serial-console reset the system?
I tried sending a break on the serial console, but the errors just keep running. Break is received, since I see it as SC Alert, but I am not put into the console, maybe there is some further trick on these newer machine? I am used to old SparcStations and UltraSparc Netras, where it was sufficient. It is inconvenient at every hang to power-cycle, since at every turn on, it runs a self-test which lasts minutes :)


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