I'm experiencing g_vfs_done() error = 5 with more than one USB/HDD storage device on 11-STABLE when heavy writing.

Thu Feb 16 21:45:29 UTC 2017

On 02/10/17 10:12, Jakub Lach wrote:
> Adding back "options         USB_DEBUG       # enable debug msgs"
> to my STRIPPED config (as I had it commented out lately) was what
> restored the behaviour to GENERIC (working one) (sic!).
> Finishing now 4th? dump.
>
> http://pastebin.ca/3766145
>

Does it make any difference with usbtest ?

It might be a timing issue in the USB firmware in your USB HDD.

--HPS