Re: hpsa driver bug crack kernel down!

[Jiang Liu]

Hi Davidlohr,
	Thanks for providing the DMAR table. According to the DMAR
table, one bug in the iommu driver fails to handle this entry:
[1D2h 0466   1]      Device Scope Entry Type : 01
[1D3h 0467   1]                 Entry Length : 0A
[1D4h 0468   2]                     Reserved : 0000
[1D6h 0470   1]               Enumeration ID : 00
[1D7h 0471   1]               PCI Bus Number : 00
[1D8h 0472   2]                     PCI Path : 1C,04
[1DAh 0474   2]                     PCI Path : 00,02

	And the patch sent out by me should fix this bug. Could you please help
to have a try?
Thanks!
Gerry

On 2014/4/14 23:45, Davidlohr Bueso wrote:
> Sorry for the delay, I've been having to take turns for this box.
> 
> On Fri, 2014-04-11 at 09:18 +0000, Woodhouse, David wrote:
>> On Thu, 2014-04-10 at 09:19 -0700, Davidlohr Bueso wrote:
>>> Attaching a dmesg from one of the kernels that boots. It doesn't appear
>>> to have much of the related information... is there any debug config
>>> option I can enable that might give you more data?
>>
>> I'd like the contents of /sys/firmware/acpi/tables/DMAR please.
> 
> Attached is the disassembly of the raw output.
> 
>>  And
>> please could you also apply this patch to both the last-working and
>> first-failing kernels and show me the output in both cases?
> 
> So I still cannot get around getting the info for the first failing
> kernel, but below is for the last working. Thanks.
> 
> Device 0:03:00.0 on IOMMU at a8000000
> Device 0:03:00.0 on IOMMU at a8000000
> IOMMU: Setting identity map for device 0000:02:00.0 [0x7f61e000 - 0x7f61ffff]
> Device 0:02:00.0 on IOMMU at a8000000
> Device 0:02:00.0 on IOMMU at a8000000
> IOMMU: Setting identity map for device 0000:02:00.2 [0x7f61e000 - 0x7f61ffff]
> Device 0:02:00.2 on IOMMU at a8000000
> Device 0:02:00.2 on IOMMU at a8000000
> IOMMU: Setting identity map for device 0000:00:1d.0 [0x7f7e7000 - 0x7f7ecfff]
> Device 0:00:1d.0 on IOMMU at a8000000
> Device 0:00:1d.0 on IOMMU at a8000000
> IOMMU: Setting identity map for device 0000:00:1d.1 [0x7f7e7000 - 0x7f7ecfff]
> Device 0:00:1d.1 on IOMMU at a8000000
> Device 0:00:1d.1 on IOMMU at a8000000
> IOMMU: Setting identity map for device 0000:00:1d.2 [0x7f7e7000 - 0x7f7ecfff]
> Device 0:00:1d.2 on IOMMU at a8000000
> Device 0:00:1d.2 on IOMMU at a8000000
> IOMMU: Setting identity map for device 0000:00:1d.3 [0x7f7e7000 - 0x7f7ecfff]
> Device 0:00:1d.3 on IOMMU at a8000000
> Device 0:00:1d.3 on IOMMU at a8000000
> IOMMU: Setting identity map for device 0000:02:00.0 [0x7f7e7000 - 0x7f7ecfff]
> Device 0:02:00.0 on IOMMU at a8000000
> IOMMU: Setting identity map for device 0000:02:00.2 [0x7f7e7000 - 0x7f7ecfff]
> Device 0:02:00.2 on IOMMU at a8000000
> IOMMU: Setting identity map for device 0000:02:00.4 [0x7f7e7000 - 0x7f7ecfff]
> Device 0:02:00.4 on IOMMU at a8000000
> Device 0:02:00.4 on IOMMU at a8000000
> IOMMU: Setting identity map for device 0000:00:1d.7 [0x7f7ee000 - 0x7f7effff]
> Device 0:00:1d.7 on IOMMU at a8000000
> Device 0:00:1d.7 on IOMMU at a8000000
> IOMMU: Prepare 0-16MiB unity mapping for LPC
> IOMMU: Setting identity map for device 0000:00:1f.0 [0x0 - 0xffffff]
> Device 0:00:1f.0 on IOMMU at a8000000
> Device 0:00:1f.0 on IOMMU at a8000000
> PCI-DMA: Intel(R) Virtualization Technology for Directed I/O
> Device 0:00:00.0 on IOMMU at a8000000
> Device 0:00:01.0 on IOMMU at a8000000
> Device 0:00:02.0 on IOMMU at a8000000
> Device 0:00:03.0 on IOMMU at a8000000
> Device 0:00:04.0 on IOMMU at a8000000
> Device 0:00:05.0 on IOMMU at a8000000
> Device 0:00:06.0 on IOMMU at a8000000
> Device 0:00:07.0 on IOMMU at a8000000
> Device 0:00:08.0 on IOMMU at a8000000
> Device 0:00:09.0 on IOMMU at a8000000
> Device 0:00:0a.0 on IOMMU at a8000000
> Device 0:00:14.0 on IOMMU at a8000000
> Device 0:00:1c.0 on IOMMU at a8000000
> Device 0:00:1c.4 on IOMMU at a8000000
> Device 0:00:1d.0 on IOMMU at a8000000
> Device 0:00:1d.1 on IOMMU at a8000000
> Device 0:00:1d.2 on IOMMU at a8000000
> Device 0:00:1d.3 on IOMMU at a8000000
> Device 0:00:1d.7 on IOMMU at a8000000
> Device 0:00:1e.0 on IOMMU at a8000000
> Device 0:00:1f.0 on IOMMU at a8000000
> Device 0:04:00.0 on IOMMU at a8000000
> Device 0:04:00.1 on IOMMU at a8000000
> Device 0:04:00.2 on IOMMU at a8000000
> Device 0:04:00.3 on IOMMU at a8000000
> Device 0:03:00.0 on IOMMU at a8000000
> Device 0:02:00.0 on IOMMU at a8000000
> Device 0:02:00.2 on IOMMU at a8000000
> Device 0:02:00.4 on IOMMU at a8000000
> Device 0:01:03.0 on IOMMU at a8000000
> Device 0:50:00.0 on IOMMU at ac000000
> Device 0:50:01.0 on IOMMU at ac000000
> Device 0:50:02.0 on IOMMU at ac000000
> Device 0:50:03.0 on IOMMU at ac000000
> Device 0:50:04.0 on IOMMU at ac000000
> Device 0:50:05.0 on IOMMU at ac000000
> Device 0:50:06.0 on IOMMU at ac000000
> Device 0:50:07.0 on IOMMU at ac000000
> Device 0:50:08.0 on IOMMU at ac000000
> Device 0:50:09.0 on IOMMU at ac000000
> Device 0:50:0a.0 on IOMMU at ac000000
> Device 0:50:14.0 on IOMMU at a8000000
> Device 0:a0:00.0 on IOMMU at b0000000
> Device 0:a0:01.0 on IOMMU at b0000000
> Device 0:a0:02.0 on IOMMU at b0000000
> Device 0:a0:03.0 on IOMMU at b0000000
> Device 0:a0:04.0 on IOMMU at b0000000
> Device 0:a0:05.0 on IOMMU at b0000000
> Device 0:a0:06.0 on IOMMU at b0000000
> Device 0:a0:07.0 on IOMMU at b0000000
> Device 0:a0:08.0 on IOMMU at b0000000
> Device 0:a0:09.0 on IOMMU at b0000000
> Device 0:a0:0a.0 on IOMMU at b0000000
> Device 0:a0:14.0 on IOMMU at a8000000
> Device 0:7c:00.0 on IOMMU at a8000000
> Device 0:7c:08.0 on IOMMU at a8000000
> Device 0:82:00.0 on IOMMU at a8000000
> Device 0:82:08.0 on IOMMU at a8000000
> 
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