mpt(4): some trouble with mixing LSI SAS1078 and LSI FC 7104EP

[Andrew Alcheyev]

Hello, freebsd-scsi.

It seems I solved my problem. It happened that the bug I collided with
had been already discussed in
http://www.freebsd.org/cgi/getmsg.cgi?fetch=92840+0+/usr/local/www/db/text/2012/freebsd-scsi/20120311.freebsd-scsi

So I applied the patch attached and since then everything is going
well.

Thank you, Kenneth and Marius, for great work!

With the best regards, Andrew.

P.S. I'm still a bit curious why did my devices work pretty nice separately.

On Thursday, April 5, 2012, 9:17:47 PM you were writing:

KC> you did check that none of the disks are bad? I have had some odd
KC> things happen to me with newer LSI cards on mpt(4) when drives go
KC> bad. please disregard this question if this is what you mean by each one in itself works fine.

KC> ----- Original Message -----
KC> From: "Andrew Alcheyev" <buddy at telenet.ru>
KC> To: freebsd-scsi at freebsd.org
KC> Cc: "Marius Strobl" <marius at alchemy.franken.de>
KC> Sent: Thursday, April 5, 2012 10:57:41 AM
KC> Subject: mpt(4): some trouble with mixing LSI SAS1078 and LSI FC 7104EP

KC> Hello, freebsd-scsi.

KC> Today I ran into some strange problem while launching two mpt(4) cards
KC> simultaneously within the same host. Each one in itself works fine but
KC> together they cause the kernel to panic when probing devices.

KC> It seems the trouble is that both cards are steered by the same device
KC> driver, mpt(4), and the trouble arises when disks should be attached
KC> to the corresponding device.

KC> The first device (mpt0) is Fibre Channel PCIe card LSI 7104EP - which
KC> worked great for several years along with another RAID (amr(4), if it
KC> matters) within another host.

KC> The second one (mpt1) is LSI SAS 1078 - RAID controller integrated into
KC> Intel's platform SR2600URLXR (I had to get fresh 9-stable kernel to
KC> bring this card up). 

KC> The other part of problem that I could not get any sensitive
KC> information from the kernel because it hangs as soon as it discovers
KC> some disks at the RAID controller (the existence of any disks at
KC> FC-card makes no difference). The USB keyboard hangs (or whatever in
KC> the kernel) as well at the same moment so I can't do any magic through
KC> in-kernel debugger nor get any dump.

KC> So far I stuck with 2 questions:
KC> - did anybody have any luck with mupltiple mpt(4) cards within a
KC>   single host?
KC> - what can I do to resolve this trouble?


KC> With the best regards, Andrew.

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