Subject: Re: 1.6 on IPC (tagged queuing bug still there)
To: Jon Buller <jon@bullers.net>
From: Matthew Jacob <mjacob@feral.com>
List: port-sparc
Date: 09/04/2002 21:36:35
I believe I have a problem on an SS10 with an ESP200.

But my problem may be that my *drives* don't really support either FAST
or T'QING properly.

On Wed, 4 Sep 2002, Jon Buller wrote:

> In message <20020905010146.D030AAC@proven.weird.com>, Greg A. Woods writes:
> >[ On Wednesday, September 4, 2002 at 16:00:19 (-0700), Jon Buller wrote: ]
> >> Subject: Re: 1.6 on IPC (tagged queuing bug still there) 
> >>
> >> In message <20020904101359.A10768@antioche.lip6.fr>, Manuel Bouyer writes:
> >> >On Wed, Sep 04, 2002 at 09:03:32AM +0900, Izumi Tsutsui wrote:
> >> >> In article <20020903195533.GA382@antioche.eu.org>
> >> >> bouyer@antioche.eu.org wrote:
> >> >> 
> >> >> > On Wed, Sep 04, 2002 at 01:15:09AM +0900, Izumi Tsutsui wrote:
> >> >> 
> >> >> > > I think only ESP100 has the problem. How about this patch?
> >> >> 
> >> >> If ESP100 cannot handle tagged queuing at all, your patch is better.
> >> >> But it is actually implemented even on ESP100 (which doesn't have SELATN3
> >> 
> >> Could this be the same problem I just ran into on my LX?
> >> 
> >>[[....]]
> >> 
> >> esp0 at dma0 slot 4 offset 0x8800000 level 4: ESP200, 40MHz, SCSI ID 7
> >> esp1 at dma1 slot 1 offset 0x80000 level 3 (ipl 5): ESP200, 40MHz, SCSI ID 7
> >
> >You don't seem to have an ESP100, so no, I don't think so.
> 
> Well, yea, that part I thought might be different too, but I did
> hear someone saying they had seen the bug on a SS10, so it might
> be more general than just ESP100.  Just out of curiosity, what are
> the effects of the bug?  Hang at boot? Panic at boot? Panic on
> heavy usage of a tagged disk? Random lossage and data corruption?
> 
> Jon
>