Re: Adaptec AHA-2940U2W "Data Parity Error Dectected" messages

2005-08-09 Thread Daniel Pittman
Lee Revell <[EMAIL PROTECTED]> writes:
> On Tue, 2005-08-09 at 17:19 +1000, Daniel Pittman wrote:
>> I recently installed a SCSI tape drive and Adaptec AHA-2940U2W SCSI
>> controller into my server to run backups.
>> 
>> Since then, the driver issues these warnings on a semi-regular basis
>> while the drive is busy:
>> 
>> Aug  9 17:00:26 anu kernel: scsi0: Data Parity Error Detected during address 
>> or write data phase
>> Aug  9 17:00:26 anu kernel: scsi0: PCI error Interrupt at seqaddr = 0x8
>
> Make sure the hardware is all installed correctly.  Check that the card
> is fully seated, or try it in another PCI slot.  

Thanks.  I will take the server down shortly and give that a shot.

> Also check your cabling and termination.

Could SCSI cabling and/or termination cause the card to report *PCI*
errors, or am I misunderstanding these messages?

I guess that the fact that the "PCI" bit kept showing up in them is
what confuses me.  I didn't except a SCSI card to report PCI bus issues
through the Linux driver, and since it claimed to be a victim, not a
cause, I didn't know quite how to trace the problem down...

Thanks,
  Daniel
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Re: Adaptec AHA-2940U2W "Data Parity Error Dectected" messages

2005-08-09 Thread Lee Revell
On Tue, 2005-08-09 at 17:19 +1000, Daniel Pittman wrote:
> I recently installed a SCSI tape drive and Adaptec AHA-2940U2W SCSI
> controller into my server to run backups.
> 
> Since then, the driver issues these warnings on a semi-regular basis
> while the drive is busy:
> 
> Aug  9 17:00:26 anu kernel: scsi0: Data Parity Error Detected during address 
> or write data phase
> Aug  9 17:00:26 anu kernel: scsi0: PCI error Interrupt at seqaddr = 0x8

Make sure the hardware is all installed correctly.  Check that the card
is fully seated, or try it in another PCI slot.  Also check your cabling
and termination.

Lee

-
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the body of a message to [EMAIL PROTECTED]
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Adaptec AHA-2940U2W "Data Parity Error Dectected" messages

2005-08-09 Thread Daniel Pittman
I recently installed a SCSI tape drive and Adaptec AHA-2940U2W SCSI
controller into my server to run backups.

Since then, the driver issues these warnings on a semi-regular basis
while the drive is busy:

Aug  9 17:00:26 anu kernel: scsi0: Data Parity Error Detected during address or 
write data phase
Aug  9 17:00:26 anu kernel: scsi0: PCI error Interrupt at seqaddr = 0x8

[...]

Aug  9 17:03:34 anu kernel: scsi0: Data Parity Error Detected during address or 
write data phase

[...]

Aug  9 17:04:36 anu kernel: scsi0: PCI parity error checking has been disabled.
Aug  9 17:04:36 anu kernel: scsi0: Some device on this bus is generating bad 
parity.
Aug  9 17:04:36 anu kernel: scsi0: This is an error *observed by*, not 
*generated by*, this controller.
Aug  9 17:04:36 anu kernel: scsi0: Too many PCI parity errors observed as a 
target.
Aug  9 17:04:36 anu kernel: scsi0: WARNING WARNING WARNING WARNING


Now, the log message claims that the SCSI controller is not responsible
for these parity errors, so my questions are:

* should I panic about this?
* should I have seen this before the SCSI controller was installed?
* can I do anything about it, or identifying the cause?

Thanks,
  Daniel
-
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Adaptec AHA-2940U2W Data Parity Error Dectected messages

2005-08-09 Thread Daniel Pittman
I recently installed a SCSI tape drive and Adaptec AHA-2940U2W SCSI
controller into my server to run backups.

Since then, the driver issues these warnings on a semi-regular basis
while the drive is busy:

Aug  9 17:00:26 anu kernel: scsi0: Data Parity Error Detected during address or 
write data phase
Aug  9 17:00:26 anu kernel: scsi0: PCI error Interrupt at seqaddr = 0x8

[...]

Aug  9 17:03:34 anu kernel: scsi0: Data Parity Error Detected during address or 
write data phase

[...]

Aug  9 17:04:36 anu kernel: scsi0: PCI parity error checking has been disabled.
Aug  9 17:04:36 anu kernel: scsi0: Some device on this bus is generating bad 
parity.
Aug  9 17:04:36 anu kernel: scsi0: This is an error *observed by*, not 
*generated by*, this controller.
Aug  9 17:04:36 anu kernel: scsi0: Too many PCI parity errors observed as a 
target.
Aug  9 17:04:36 anu kernel: scsi0: WARNING WARNING WARNING WARNING


Now, the log message claims that the SCSI controller is not responsible
for these parity errors, so my questions are:

* should I panic about this?
* should I have seen this before the SCSI controller was installed?
* can I do anything about it, or identifying the cause?

Thanks,
  Daniel
-
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the body of a message to [EMAIL PROTECTED]
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Re: Adaptec AHA-2940U2W Data Parity Error Dectected messages

2005-08-09 Thread Lee Revell
On Tue, 2005-08-09 at 17:19 +1000, Daniel Pittman wrote:
 I recently installed a SCSI tape drive and Adaptec AHA-2940U2W SCSI
 controller into my server to run backups.
 
 Since then, the driver issues these warnings on a semi-regular basis
 while the drive is busy:
 
 Aug  9 17:00:26 anu kernel: scsi0: Data Parity Error Detected during address 
 or write data phase
 Aug  9 17:00:26 anu kernel: scsi0: PCI error Interrupt at seqaddr = 0x8

Make sure the hardware is all installed correctly.  Check that the card
is fully seated, or try it in another PCI slot.  Also check your cabling
and termination.

Lee

-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: Adaptec AHA-2940U2W Data Parity Error Dectected messages

2005-08-09 Thread Daniel Pittman
Lee Revell [EMAIL PROTECTED] writes:
 On Tue, 2005-08-09 at 17:19 +1000, Daniel Pittman wrote:
 I recently installed a SCSI tape drive and Adaptec AHA-2940U2W SCSI
 controller into my server to run backups.
 
 Since then, the driver issues these warnings on a semi-regular basis
 while the drive is busy:
 
 Aug  9 17:00:26 anu kernel: scsi0: Data Parity Error Detected during address 
 or write data phase
 Aug  9 17:00:26 anu kernel: scsi0: PCI error Interrupt at seqaddr = 0x8

 Make sure the hardware is all installed correctly.  Check that the card
 is fully seated, or try it in another PCI slot.  

Thanks.  I will take the server down shortly and give that a shot.

 Also check your cabling and termination.

Could SCSI cabling and/or termination cause the card to report *PCI*
errors, or am I misunderstanding these messages?

I guess that the fact that the PCI bit kept showing up in them is
what confuses me.  I didn't except a SCSI card to report PCI bus issues
through the Linux driver, and since it claimed to be a victim, not a
cause, I didn't know quite how to trace the problem down...

Thanks,
  Daniel
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/