* STK9840/SYM53c875 ODD transfer in DATA OUT phase
@ 2003-09-26 10:20 KELEMEN Peter
2003-09-26 12:38 ` Jes Sorensen
0 siblings, 1 reply; 6+ messages in thread
From: KELEMEN Peter @ 2003-09-26 10:20 UTC (permalink / raw)
To: linux-scsi
[ Please Cc: me as I'm not subscribed to the list. Thanks. ]
Hello,
Since 2.4.18, we have a problem with the above combo if and only
if the transfer is odd number of bytes. Even byte transfer works
well. The error message we see is:
Sep 25 17:45:48 x kernel: st0: Error 70000 (sugg. bt 0x0, driver bt 0x0, host bt 0x7).
Sep 25 17:45:49 x kernel: sym0:0:0:extraneous data discarded.
Sep 25 17:45:49 x kernel: sym0:0:0:ODD transfer in DATA OUT phase.
Sep 25 17:45:49 x kernel: sym0:0:0:COMMAND FAILED (87 0 9).
I'm out of ideas what to try next, debugging didn't show up
anything unusual. The same hardware works with 2.2.19.
Any ideas?
Peter
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: STK9840/SYM53c875 ODD transfer in DATA OUT phase
2003-09-26 10:20 STK9840/SYM53c875 ODD transfer in DATA OUT phase KELEMEN Peter
@ 2003-09-26 12:38 ` Jes Sorensen
2003-09-26 13:03 ` Mr. James W. Laferriere
0 siblings, 1 reply; 6+ messages in thread
From: Jes Sorensen @ 2003-09-26 12:38 UTC (permalink / raw)
To: KELEMEN Peter; +Cc: linux-scsi
>>>>> "Peter" == KELEMEN Peter <Peter.Kelemen@cern.ch> writes:
Peter> [ Please Cc: me as I'm not subscribed to the list. Thanks. ]
Peter> Hello,
Peter> Since 2.4.18, we have a problem with the above combo if and
Peter> only if the transfer is odd number of bytes. Even byte
Peter> transfer works well. The error message we see is:
Peter,
Have you tried using a different SCSI controller to see if it is
driver related? Any chance you could try 2.4.21?
Cheers,
Jes
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: STK9840/SYM53c875 ODD transfer in DATA OUT phase
2003-09-26 12:38 ` Jes Sorensen
@ 2003-09-26 13:03 ` Mr. James W. Laferriere
2003-09-26 16:39 ` KELEMEN Peter
2003-09-26 17:27 ` Tony Battersby
0 siblings, 2 replies; 6+ messages in thread
From: Mr. James W. Laferriere @ 2003-09-26 13:03 UTC (permalink / raw)
To: Jes Sorensen; +Cc: KELEMEN Peter, linux-scsi
Hello Jes & Peter ,
On Fri, 26 Sep 2003, Jes Sorensen wrote:
> >>>>> "Peter" == KELEMEN Peter <Peter.Kelemen@cern.ch> writes:
> Peter> [ Please Cc: me as I'm not subscribed to the list. Thanks. ]
> Peter> Hello,
> Peter> Since 2.4.18, we have a problem with the above combo if and
> Peter> only if the transfer is odd number of bytes. Even byte
> Peter> transfer works well. The error message we see is:
> Peter,
> Have you tried using a different SCSI controller to see if it is
> driver related? Any chance you could try 2.4.21?
If memory serves this is driver related . And IIRC someone has
made changes or at least put forth a patch to attempt to aleviate
the odd byte count problem . It is in (Again IIRC) both of the
Symbois drivers (ie: 53c8xx.c & sym53c8xx_2) . Do try a newer
kernel than 2.4.21 tho 2.4.22 is what I am running . Hth , JimL
--
+------------------------------------------------------------------+
| James W. Laferriere | System Techniques | Give me VMS |
| Network Engineer | P.O. Box 854 | Give me Linux |
| babydr@baby-dragons.com | Coudersport PA 16915 | only on AXP |
+------------------------------------------------------------------+
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: STK9840/SYM53c875 ODD transfer in DATA OUT phase
2003-09-26 13:03 ` Mr. James W. Laferriere
@ 2003-09-26 16:39 ` KELEMEN Peter
2003-09-26 17:27 ` Tony Battersby
1 sibling, 0 replies; 6+ messages in thread
From: KELEMEN Peter @ 2003-09-26 16:39 UTC (permalink / raw)
To: linux-scsi
* Mr. James W. Laferriere (babydr@baby-dragons.com) [20030926 09:03]:
Jes, James,
> On Fri, 26 Sep 2003, Jes Sorensen wrote:
> > Have you tried using a different SCSI controller to see if it
> > is driver related? Any chance you could try 2.4.21?
> If memory serves this is driver related . And IIRC someone
> has made changes or at least put forth a patch to attempt to
> aleviate the odd byte count problem . It is in (Again IIRC) both
> of the Symbois drivers (ie: 53c8xx.c & sym53c8xx_2) . Do try a
> newer kernel than 2.4.21 tho 2.4.22 is what I am running . Hth ,
> JimL
Well, I tried 2.4.22, the change is really small:
--- linux-2.4.20-18.7.cern/drivers/scsi/sym53c8xx_2/sym_hipd.c 2003-07-04 12:22:05.000000000 +0200
+++ linux-2.4.22/drivers/scsi/sym53c8xx_2/sym_hipd.c 2003-08-25 13:44:42.000000000 +0200
@@ -221,7 +221,7 @@
*/
static void sym_soft_reset (hcb_p np)
{
- u_char istat=0;
+ u_char istat;
int i;
if (!(np->features & FE_ISTAT1) || !(INB (nc_istat1) & SCRUN))
@@ -4641,7 +4641,10 @@
case M_IGN_RESIDUE:
if (DEBUG_FLAGS & DEBUG_POINTER)
sym_print_msg(cp,"ign wide residue", np->msgin);
- sym_modify_dp(np, tp, cp, -1);
+ if (cp->host_flags & HF_SENSE)
+ OUTL_DSP (SCRIPTA_BA (np, clrack));
+ else
+ sym_modify_dp(np, tp, cp, -1);
return;
case M_REJECT:
if (INB (HS_PRT) == HS_NEGOTIATE)
...to no avail, the problem persists. However, there is a funny
thing I observed: the driver still logs the *same* error message¹
to the ringbuffer when I do even byte transfers, however for some
weird reason the driver reports success, and lo, I can read the
file back and it is intact. Odd byte transfers trigger the same
condition and the driver reports no sense. Very strange...
Peter
¹
Sep 26 18:29:06 x kernel: sym0:0:0:extraneous data discarded.
Sep 26 18:29:06 x kernel: sym0:0:0:ODD transfer in DATA OUT phase.
Sep 26 18:29:06 x kernel: sym0:0:0:COMMAND FAILED (87 0 9).
--
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Kelemen Péter / \ / \ Peter.Kelemen@cern.ch
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^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: STK9840/SYM53c875 ODD transfer in DATA OUT phase
2003-09-26 13:03 ` Mr. James W. Laferriere
2003-09-26 16:39 ` KELEMEN Peter
@ 2003-09-26 17:27 ` Tony Battersby
2003-10-10 8:56 ` KELEMEN Peter
1 sibling, 1 reply; 6+ messages in thread
From: Tony Battersby @ 2003-09-26 17:27 UTC (permalink / raw)
To: 'Mr. James W. Laferriere', 'Jes Sorensen'
Cc: 'KELEMEN Peter', linux-scsi
> If memory serves this is driver related . And IIRC someone has
> made changes or at least put forth a patch to attempt to aleviate
> the odd byte count problem . It is in (Again IIRC) both of the
> Symbois drivers (ie: 53c8xx.c & sym53c8xx_2) . Do try a newer
> kernel than 2.4.21 tho 2.4.22 is what I am running .
Yes, this is an old problem that keeps coming up. See:
http://marc.theaimsgroup.com/?t=101018223200001&r=1&w=2
http://marc.theaimsgroup.com/?t=106074664100005&r=1&w=2
I have not seen any patch to fix it. My minor change in 2.4.22 was for
the Ignore Wide Residue message on a Request Sense command, but that was
a different issue.
Anthony J. Battersby
Cybernetics
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: STK9840/SYM53c875 ODD transfer in DATA OUT phase
2003-09-26 17:27 ` Tony Battersby
@ 2003-10-10 8:56 ` KELEMEN Peter
0 siblings, 0 replies; 6+ messages in thread
From: KELEMEN Peter @ 2003-10-10 8:56 UTC (permalink / raw)
To: Tony Battersby
Cc: 'Mr. James W. Laferriere', 'Jes Sorensen', linux-scsi
* Tony Battersby (tonyb@cybernetics.com) [20030926 13:27]:
> Yes, this is an old problem that keeps coming up. See:
> http://marc.theaimsgroup.com/?t=101018223200001&r=1&w=2
> http://marc.theaimsgroup.com/?t=106074664100005&r=1&w=2
Thanks. Finally, the workaround is to run in narrow mode since
our drives are capable of 15MB/s maximum.
Peter
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.+' `+...+' `+...+' `+...+' `+...+'
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2003-10-10 8:57 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2003-09-26 10:20 STK9840/SYM53c875 ODD transfer in DATA OUT phase KELEMEN Peter
2003-09-26 12:38 ` Jes Sorensen
2003-09-26 13:03 ` Mr. James W. Laferriere
2003-09-26 16:39 ` KELEMEN Peter
2003-09-26 17:27 ` Tony Battersby
2003-10-10 8:56 ` KELEMEN Peter
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