Re: Re: problems with netbsd-10 and PERC controllers

[Christoph Badura <bad%bsd.de@localhost>]

On Sun, Jun 22, 2025 at 09:32:30AM +0200, 6bone%6bone.informatik.uni-leipzig.de@localhost wrote:
> I've enabled debugging. Unfortunately, I'm stuck with the analysis.
> The last crash happened last night. However, when the problem
> occurred, write operations on the system were no longer possible.
> So, there are no records of the debug output :-(

There are bits of useful information missing:

You could show us the relevant autoconfiguration messages for the system.
You could upload the entire dmesg output to dmesgd.
What system exactly are you using?
Does the machine have the newest system and controller firmware installed?
Are you booting in BIOS compatibility mode or from UEFI?

A couple of ideas to work around the problem of the system disk(s) becoming
unresponsive:

You could install the base NetBSD system to a USB stick or disk and run the
system from that.

You could configure a dump parition on the still working controller.

I took a look at the state of the OpenBSD mfii driver from which ours is
derived.  It appears they are running it in non-MSI mode.  So trying to
turn MSI interrupts of would be a good first change to try.

Also Edgar Fuß seems to run similar systems with the same controllers
according to search results for the mailing lists.  Maybe he can help.

--chris