error message

Hi

Could anyone give me some pointers to investigating the following console error message.

WARNING: correctable error from pci0 (upa mid 1f) during dvma read transaction.

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This is a SUN Enterprise 250 running Solaris 2.6. There are 2 RAID boxes, some external HDs and an AIT Tape drive attached.
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gormenghastAsked:
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kawinCommented:
What the next messages? Can you give me more information.

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jaranCommented:
Looks like an OS level error regarding a PCI DMA bus transaction.  I'm no SPARC bus expert, but I'd look first at what card is residing in that slot (PCI0) to investigate what might be causing the problem.

Other than that, I'd look at the use of the "upa" in there as an indicator that it's a frame buffer - seems to be the only device driver that has that word in it.

Look on the bright side - at least the error is correctable - most likely it just re-posts the transaction.  A performance hit, but it still works.

You might also want to look at the possibility of one of your PCI busses being saturated, which would cause a possible miss on a DMA transaction.

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kawinCommented:
UPA is a bus not frame buffer, CPU and memory are connect to UPA bus too. That mean something in UPA maybe fail.

It look like memory fail. (I check it from sunsolve.sun.com)
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