Messages in this thread | | | Date | Mon, 14 Jan 2008 12:52:00 -0800 | From | Stephen Hemminger <> | Subject | Re: [BUG] skge 0000:02:05: read data parity error |
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On Mon, 14 Jan 2008 20:57:49 +0100 "Oliver Pinter (Pintér Olivér)" <oliver.pntr@gmail.com> wrote:
> Hi All! > > It is fully reproductable under 2.6.22.15, 2.6.23.13 (all tainted and > not tainted [4 different kernel] ) and 2 different PC: > > [BUG] skge 0000:02:05: read data parity error > [BUG] skge 0000:02:05: read data parity error > > steps: > 1. login as root > 2. start mc > 3. cd /sys/bus/pci/drivers/skge/0000:02:05.0 > 4. press F3 (mcview) on resource0 > 5. the system hang up, without panic or bug ... only this message > printed 2x: [BUG] skge 0000:02:05: read data parity error >
This is not a bug.
The hardware has some debug registers that if accessed cause a read back to the host. Since this can point anywhere, it will cause errors or system hang.
The point is don't do it.
-- Stephen Hemminger <stephen.hemminger@vyatta.com> -- 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/
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