[Bug 279737] mpi3mr running out of chain in 14.1-RELEASE

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=279737

--- Comment #6 from Sarder Kamal <bsd.m0osk@gmail.com> ---
Thanks everyone for looking into it and for your prompt response.

I can confirm that I am able to boot from the installer by setting
hw.mpr.max_chains=32768 at loader prompt. I have also tried
dev.mpr.0.max_chains=32768 with the hw.mpr.max_chains (to see if setting both
makes any difference, it did not), and that too worked.

I have tried to reproduce the "installer" failure in various ways (using the
value 32768) following the same path that I tried earlier, but could not
reproduce. This indicates that increasing the value actually did the trick.

Next I tried with 65536, so far it failed in all the methods I could follow
with mpr0 running out of chain frames. It tries to reinitialize, but that does
not seem to work for the period I let it try.

So, I am happy to confirm that in my case (at least) setting value to 32768
worked and allowed me to continue. Setting value to 65536 did not work, it
failed all the times.

Thanks everyone for looking into it, and help finding a practical solution to
go forward. I am still a little perplexed as to why the value 16364 worked with
14.0 and not with 14.1 though, hopefully someone can help me understand at some
point.

Thanks again, much appreciated.
SK

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