Date: Wed, 14 Mar 2001 23:30:32 -0800 From: Mike Smith <msmith@freebsd.org> To: "Douglas K. Rand" <rand@meridian-enviro.com> Cc: freebsd-stable@freebsd.org, bryanh@meridian-enviro.com Subject: Re: 3ware problems Message-ID: <200103150730.f2F7UWE02140@mass.dis.org> In-Reply-To: Your message of "Thu, 15 Mar 2001 01:10:54 CST." <3AB06AFE.68273631@meridian-enviro.com>
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> > If you've done this and you're still having problems, build the driver
> > with TWE_DEBUG enabled, and boot a kernel with DDB enabled. Then, when
> > mysql sticks, break to DDB and say
> >
> > db> call twe_report
>
> Well, it took 6 hours, but we finally managed to get mysqd to stick again.
> Here is the output from twe_report:
>
> db> call twe_report
> twe0: status 57007720<CQEMPTY,UCREADY,RQEMPTY,>
> twe0: current max
> twe0: free 0254 0255
> twe0: ready 0000 0000
> twe0: busy 0001 0130
Drat. There it is; you've got a command that looks like it's stuck in
the adapter.
> twe0: complete 0000 0014
> twe0: bioq 0000 0001
> twe0: AEN queue head 1 tail 0
> twed: total bio count in 2330109 out 2330108
I didn't see you respond to Mike T - are you using 64k or 128k stripes?
If the latter, try changing the value of TWE_Q_LENGTH in
/sys/dev/twe/twereg.h to 100 and see if you can reproduce it. I am
worrying about firmware here at the moment; I don't *think* there are any
opportunities in the driver to lose a command.
If this doesn't yield anything (you could try the above anyway), I'll try
to write you some more debugging code to work out what, if anything, is
unique about the command(s) that are getting stuck.
Thanks for your patience.
Regards,
Mike
--
... every activity meets with opposition, everyone who acts has his
rivals and unfortunately opponents also. But not because people want
to be opponents, rather because the tasks and relationships force
people to take different points of view. [Dr. Fritz Todt]
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