[Bug 244356] Writing to a USB 3.0 stick is very slow

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244356

--- Comment #39 from Olivier Certner <olivier.freebsd at free.fr> ---
Created attachment 214458
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=214458&action=edit
Stick SD_64G: 2nd output of `usbtest`

(In reply to Hans Petter Selasky from comment #38)

Done. In fact, I did two tests, unplugging and replugging the stick each time.

First test is what you asked for, result seems pretty similar, except for an
additional timeout.

So I tried a second one, with Read and Write and 8 blocks I/Os. Apparently,
same results, except that some number after "ERROR: Data transfer" differs for
"LBA limit = 32767".

Are you confident that the stick is not USB compliant? Could it be a problem
with `usbtest`? What could I test next?

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