[Bug 219399] System panics after several hours of 14-threads-compilation orgies using poudriere on AMD Ryzen...

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219399

--- Comment #154 from Mark Millard <markmi at dsl-only.net> ---
(In reply to Don Lewis from comment #149)

It is my understanding that many Ryzen 7
boards allow ECC memory but do not use the ECC
functionality: either the board is not wired
or else the BIOS does not configure for it.

For example:

7A32v1.0(G52-7A321X1)(X370 GAMING PRO CARBON).pdf

says:

Supports ECC UDIMM memory (non-ECC mode)

(It does not say if the board is wired to allow
ECC or not so I've no clue if a BIOS update
might be able to enable support of ECC mode.)

So it appears that:

"Too bad you're not running ECC RAM, that would eliminate one potential silent
cause of strange behavior"

needs more context, such as "on a board that
uses ECC mode (when appropriately configured
if needed)".

It may be that most folks would not have ECC
ram put to use for their boards.

(The X370 GAMING PRO CARBON that I had access
to was turned into a brick by a BIOS update
attempt and I do not yet have access to another
Ryzen system.)

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