Re: [PATCH] ata: Disable queued TRIM for Samsung 860 SSDs

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Hi Simon!

> Despite the unsubstantiated claim from Samsung that "the improved
> queued trim enhances Linux compatibility" this does not appear to be
> true, even on Intel SATA controllers:

I am aware of several people using 860 drives with queued TRIM. And I
haven't heard any complaints outside of the bug you referenced.

Also, I have tested both 860 2.5" Pro and 860 mSATA EVO on a few
different systems in my lab without any problems. See:

    https://lore.kernel.org/stable/yq1h87du82d.fsf@xxxxxxxxxx/T/

I really wish we had some more data to work with :(

Lacking a proper heuristic I guess we don't have any choice to disable
the feature. But that's sad news for the people who currently don't have
problems since their performance will inevitably suffer.

-- 
Martin K. Petersen	Oracle Linux Engineering



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