firmware-testing-team team mailing list archive

[Brendan Donegan <brendan.donegan@xxxxxxxxxxxxx>]

On 04/12/12 10:53, Colin Ian King wrote:
> Jeff,
>
> I've updated the bug.  It looks like the _SRS control can be passed in 
> two types of buffer (as created by the associated _CRS).  However, the 
> _SRS assumes it has the the largest buffer when it creates the DRQL 
> and DMAC byte fields, and hence it falls off the end of the smaller 
> buffer.
>
> I am not sure if the _SRS fails to execute the SIRQ (0x02, IRQL) when 
> it is given the smaller buffer or not; I'd have to produce a debug 
> kernel to trace the AML op code execution to figure this out.  As it 
> stands, if this fails to execute then we may have some PCI 
> misconfiguration going on.  If it does execute, we are OK, but we get 
> this kernel error being reported on each S3 cycle.
>
> As it stands, I think it would be prudent to see if the firmware can 
> be fixed.  Realistically we can't quirk around this bug.
I'm seeing a similar failure (on a different machine) with a different 
field ([IRQE]). What's the best route to getting these bugs fixed by 
Dell in the firmware?
> Colin
>
> On 03/12/12 22:13, Jeff Lane wrote:
> > Could someone take a look at this log from FWTS:
> > https://launchpadlibrarian.net/122454479/results.log
> >
> > That is part of this bug:
> > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1076979
> >
> > This was run on a system and while the system did indeed suspend and
> > resume 30 times, the test overall failed because of a bunch of the
> > following errors:
> >
> > FAILED [CRITICAL] KlogACPIErrorFieldexceedsBuffer: Test 1, CRITICAL
> > Kernel message: [77191.628764]
> > ACPI Error: Field [DRQL] at 144 exceeds Buffer [NULL] size 104 (bits)
> > (20110623/dsopcode-236)
> >
> > ADVICE: The field exceeds the allocated buffer size. This can lead to
> > unexpected results when
> > fetching data outside this region.
> >
> > FAILED [HIGH] KlogACPIErrorMethodExecutionParse: Test 1, HIGH Kernel
> > message: [77191.628769] ACPI
> > Error: Method parse/execution failed [\_SB_.PCI0.SBRG.LPTE._SRS] (Node
> > ffff88002cfc0488),
> > AE_AML_BUFFER_LIMIT (20110623/psparse-536)
> >
> > ADVICE: Method failed: ResourceSourceIndex is present but ResourceSource
> > is not.
> >
> > So ultimately, what I'm interested in is if this is a misconfiguration
> > in Klog or something, or if this will legitimately impact the stability
> > and usability of a system, thus failing certification.
> >
> > Thanks
> > Jeff
>
>
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