mbuf_jumbo_9k & iSCSI failing

[Ben RUBSON]

> On 25 Jun 2017, at 17:14, Ryan Stone <rysto32 at gmail.com> wrote:
> 
> Is this setup using the mlx4_en driver?  If so, recent versions of that driver has a regression when using MTUs greater than the page size (4096 on i386/amd64).  The bug will cause the card to drop packets when the system is under memory pressure, and in certain causes the card can get into a state when it is no longer able to receive packets.  I am working on a fix; I can post a patch when it's complete.

Thank you very much for your feedback Ryan.

Yes, my system is using mlx4_en driver, the one directly from FreeBSD 11.0 sources tree.
Any indicator I could catch to be sure I'm experiencing the issue you are working on ?

Sounds like anyway I may be suffering from it...
Of course I would be glad to help testing your patch when it's complete.

Thank you again,

Ben