To:		leifn_ERASE@image.dk (Leif Neland)
cc:		tomppa_ERASE@fidata.fi, fabio_ERASE@obelix.unicamp.br,
     gcrutchr_ERASE@nightflight.com, j_ERASE@uriah.heep.sax.de, jc_ERASE@irbs.com,
     julian_ERASE@freebsd.org, kuku_ERASE@gilberto.physik.rwth-aachen.de,
     nikm_ERASE@ixa.net, wilko_ERASE@yedi.iaf.nl, grog_ERASE@lemis.com, jhs@
     leifn_ERASE@darla.swimsuit.roskildebc.dk
Subject:	Re: 1542A troubles 
From:		Julian H. Stacey <jhs@
In-reply-to:	Your message of "29 Nov 1997 14:38:33 +0100."
		<4ca_9711291444_ERASE@swimsuit.roskildebc.dk> 

Hi,

Reference:
> From:		leifn_ERASE@image.dk (Leif Neland) 
> Date:		29 Nov 97 14:38:33 +0100 

Leif Neland wrote:

> So now I have tried testblock, and it shows that 0xff are read at 4K-boundari
  > es:
> 0x2001, 0x3001, 0xc001, 0xd001.     
>
> What do I do now? Short of changing the controller?
> Is read-after-write-verification possible? (I won't be doing much writing).  
> Or shorter blocks?

Next Mail ....

> My 1542A indeed often writes 0xff at 0x2001,0x3001 etc.
> 
> Have I just confirmed I'm in the same boat as you, or does a solution exist, 
  > short of getting another type of adaptor?
> 
> Leif Neland
> leifn_ERASE@image.dk
> 
> ---
> |Fidonet:  Leif Neland 2:234/49
> |Internet: leifn_ERASE@image.dk

Sounds like you'r in the same boat !
So that's at least 3 of us if not more have now seen this 1542A driver prob.,

I'm afraid I don't have time or experience to debug the driver,
(though I'd have loved to give it a try, if I'd had loads of time :-)
so I think you should make as exact & full a summary of what you (& others)
have seen as you can, & submit it with send-pr, &/or post to scsi@freeebsd.org,
cc the folks above,

There are folks who could debug this out there, they just don't have our
1542a cards, so we have to co-operate in encouraging them to provide
test fixes, then compiling kernels & testing them.

I'm afraid doing that email bit is not high on my priority as:
	- I can no longer post to freebsd lists (DNS anti-spam security
	  tightening @freebsd.org has caught me in its net,
	  a bit like tuna fishermen inadvertently catch dolphins too).
	- My net access is also in peril & I have to make other arrangements.
	- Normal december personal time pressures.

So if you want a fix, please take the lead, & use me & the other folk
documented in 
	http://.........../~jhs/hardware/1542a/
to coroborate your report, then we'll hopefully see some patches we can try :-)

If someone send me some patches it's easy for me to hitch on another disc,
compile a new kernel & reboot that system,
just, folks, if you'r seeing this for the first time, please ask
Leif to describe the problem, or see ~jhs/hardware/1542a/,
as above, I have email connectivity problems to solve before 
engaging in email discussions that will soon bounce or fail.

Thanks

Julian
--
Julian H. Stacey       jhs@