lkml.org 
[lkml]   [2007]   [Oct]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: cx88 pci_abort messages
From
Date
On Sat, 2007-10-06 at 12:48 -0600, Robert Hancock wrote:
> > On Oct 4, 2007, at 11:52 AM, Scott wrote:
> >
> >> I'm having what I think is a PCI bus problem.
> >>
> >> I have a ASUS P5B Intel 965 motherboard and a DVICO Fusion HDTV5 RT
> >> adapter on the PCI bus. When this adapter is recording (anything) I see
> >> Oct 2 21:59:12 htpc cx88[0]: irq mpeg [0x80000] pci_abort*
> >> Oct 2 21:59:12 htpc cx88[0]/2-mpeg: general errors: 0x00080000
> >> Oct 2 21:59:20 htpc cx88[0]: irq mpeg [0x80000] pci_abort*
> >> Oct 2 21:59:20 htpc cx88[0]/2-mpeg: general errors: 0x00080000
> >> Oct 2 21:59:32 htpc cx88[0]: irq mpeg [0x80000] pci_abort*
> >> Oct 2 21:59:32 htpc cx88[0]/2-mpeg: general errors: 0x0008000
> >
> PCI aborts won't have anything to do with interrupts. It's a PCI DMA
> transfer that either the initiator (here, the TV card) or the target
> (the chipset host bridge) decided to puke on for some reason. Possibly
> parity errors?

I assumed it was an interrupt issue based on the 'irq mepg' error, not a
DMA issue. Any suggestions on how to log more information about PCI DMA
events on a system wide basis?

I've seen this since 2.6.18.

--
Scott <linux-kernel@bluecamel.eml.cc>

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

\
 
 \ /
  Last update: 2007-10-06 23:17    [W:0.031 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site