Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Emmanuel Grumbach]

Hi,

adding PCI folks.
Here is the story:

* Wzyboy has a Lenovo laptop with _OSC control *not* granted
* L1 Active is enabled
* kernel: 3.12.0
* Nic is PCIe (Gen2 but not sure...)

At some random point, the driver loses access to the NIC: all readl
operation return 0xff.
Even lspci returns 0xff:

03:00.0 Network controller: Intel Corporation Wireless 7260 (rev ff)
00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff

here is the output of lspci *before* the issue hits:

03:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
00: 86 80 b2 08 06 04 10 00 6b 00 80 02 10 00 00 00
10: 04 00 40 f0 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 62 c2
30: 00 00 00 00 c8 00 00 00 00 00 00 00 09 01 00 00

have you any idea of what we can do to understand what it going wrong here?

Thanks

On 11/06/2013 09:12 AM, wzyboy wrote:
> 2013/11/6 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
>> Wait - you mean that after the bug occurred before you rebooted, lspci -xxx show all 00?
>> I can see 0xff here.
>> Anyway - this is very bad... checking with HW guys...
> 
> 
> Sorry, that's my typo. They are all 0xff... (I don't know what do they
> mean but it look bad...)
> 
> Thanks for your effort! I'm waiting for good news from you and HW guys. :-)
> 

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Bjorn Helgaas]

On Wed, Nov 6, 2013 at 10:50 AM, Emmanuel Grumbach <egrumbach@gmail.com> wrote:
> Hi,
>
> adding PCI folks.
> Here is the story:
>
> * Wzyboy has a Lenovo laptop with _OSC control *not* granted
> * L1 Active is enabled
> * kernel: 3.12.0
> * Nic is PCIe (Gen2 but not sure...)
>
> At some random point, the driver loses access to the NIC: all readl
> operation return 0xff.
> Even lspci returns 0xff:
>
> 03:00.0 Network controller: Intel Corporation Wireless 7260 (rev ff)
> 00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> 10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> 20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>
> here is the output of lspci *before* the issue hits:
>
> 03:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
> 00: 86 80 b2 08 06 04 10 00 6b 00 80 02 10 00 00 00
> 10: 04 00 40 f0 00 00 00 00 00 00 00 00 00 00 00 00
> 20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 62 c2
> 30: 00 00 00 00 c8 00 00 00 00 00 00 00 09 01 00 00
>
> have you any idea of what we can do to understand what it going wrong here?

Do you have any more details?  Maybe open a bugzilla.kernel.org report
and attach:

  - complete dmesg log
  - lspci -vvxxx output for entire system before issue occurs
  - lspci -vvxxx output for entire system after issue occurs

Bjorn

> On 11/06/2013 09:12 AM, wzyboy wrote:
>> 2013/11/6 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
>>> Wait - you mean that after the bug occurred before you rebooted, lspci -xxx show all 00?
>>> I can see 0xff here.
>>> Anyway - this is very bad... checking with HW guys...
>>
>>
>> Sorry, that's my typo. They are all 0xff... (I don't know what do they
>> mean but it look bad...)
>>
>> Thanks for your effort! I'm waiting for good news from you and HW guys. :-)
>>

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/7 Bjorn Helgaas <bhelgaas@google.com>:
> Do you have any more details?  Maybe open a bugzilla.kernel.org report
> and attach:
>
>   - complete dmesg log
>   - lspci -vvxxx output for entire system before issue occurs
>   - lspci -vvxxx output for entire system after issue occurs


Hi, I have filed a bug on bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=64541

Actually I have posted some more logs before, you could find them on
the mailing lists archive:
http://thread.gmane.org/gmane.linux.kernel.wireless.general/115259

Here is the output of lspci -vxxxx just now. I'll run this command
again when the bug occurs next time:

03:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
 Subsystem: Intel Corporation Wireless-N 7260
 Flags: bus master, fast devsel, latency 0, IRQ 62
 Memory at f0400000 (64-bit, non-prefetchable) [size=8K]
 Capabilities: [c8] Power Management version 3
 Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
 Capabilities: [40] Express Endpoint, MSI 00
 Capabilities: [100] Advanced Error Reporting
 Capabilities: [140] Device Serial Number 5c-51-4f-ff-ff-0d-82-ac
 Capabilities: [14c] Latency Tolerance Reporting
 Capabilities: [154] Vendor Specific Information: ID=cafe Rev=1 Len=014 <?>
 Kernel driver in use: iwlwifi
 Kernel modules: iwlwifi
00: 86 80 b2 08 06 04 10 00 6b 00 80 02 10 00 00 00
10: 04 00 40 f0 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 62 c2
30: 00 00 00 00 c8 00 00 00 00 00 00 00 09 01 00 00
40: 10 00 02 00 c0 8e 00 10 10 0c 19 00 11 ec 06 00
50: 42 01 11 10 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 12 08 08 00 05 04 00 00 00 00 00 00
70: 01 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 01 d0 23 c8 00 00 00 0d
d0: 05 40 81 00 0c f0 e0 fe 00 00 00 00 42 41 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
100: 01 00 01 14 00 00 00 00 00 00 00 00 31 20 46 00
110: 00 20 00 00 00 20 00 00 00 00 00 00 00 00 00 00
120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
140: 03 00 c1 14 ac 82 0d ff ff 4f 51 5c 18 00 41 15
150: 03 10 03 10 0b 00 01 00 fe ca 41 01 1f 1e f0 00
160: 0f 00 a0 40 f0 00 00 00 00 00 00 00 00 00 00 00
170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
210: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
220: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
230: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
240: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
250: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
260: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
270: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
290: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
310: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
320: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
330: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
340: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
350: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
360: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
370: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
390: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
3a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
3b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
3c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
3d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
3e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
3f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
410: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
420: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
430: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
440: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
450: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
460: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
470: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
490: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
4a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
4b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
4c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
4d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
4e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
4f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
510: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
520: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
530: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
540: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
550: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
560: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
570: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
590: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
5a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
5b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
5c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
5d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
5e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
5f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
610: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
620: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
630: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
640: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
650: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
660: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
670: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
690: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
6a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
6b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
6c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
6d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
6e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
6f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
710: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
720: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
730: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
740: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
750: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
760: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
770: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
790: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
7a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
7b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
7c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
7d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
7e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
7f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
810: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
820: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
830: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
840: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
850: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
860: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
870: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
890: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
8a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
8b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
8c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
8d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
8e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
8f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
910: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
920: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
930: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
940: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
950: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
960: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
970: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
990: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
9a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
9b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
9c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
9d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
9e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
9f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
aa0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ab0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ac0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ad0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ae0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
af0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ba0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
bb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
bc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
bd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
be0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
bf0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ca0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
cb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
cc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
cd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ce0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
cf0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
da0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
db0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
dc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
dd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
de0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
df0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ea0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
eb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ec0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ed0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ee0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ef0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
fa0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
fb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-- 
wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

Hi,

it seems that I might find one possible "trigger" of this bug: heavy download.

Today I'm trying to download a big file with wget, and this bug occurs
six times before I could not bear it any more (every time I have to
reboot to recover my network!) and bought a network cable downstairs
in the supermarket and used wired network instead.

It seems that when downloading at full speed (20 Mbps fiber, ~2.3
MiB/s) for several minutes and the bug, very possibly, may occur.

Several days ago, when I tried to download "linux-3.12.tar.xz" from
kernal.org with wget, the bug also occured twice during the whole
download process.

Could this be a hardware issue (flawed hardware?) or just driver
issue? I bought this laptop 8 days ago and wiped the pre-installed
Windows the moment I got it, so I have no idea how this wireless card
performs under Windows.

-- 
wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/8 wzyboy <wzyboy@wzyboy.org>:
> so I have no idea how this wireless card
> performs under Windows.


And I could not test this out under Windows any more, since my laptop
is now a BIOS + GTP + LUKS setup, so it would be a big project if I
want to install Windows again -- Windows 7/8/8.1 does not allow BIOS +
GPT setup, not speaking of the headache of resizing LUKS containers...

-- 
wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Bjorn Helgaas]

On Wed, Nov 6, 2013 at 9:49 PM, wzyboy <wzyboy@wzyboy.org> wrote:
> 2013/11/7 Bjorn Helgaas <bhelgaas@google.com>:
>> Do you have any more details?  Maybe open a bugzilla.kernel.org report
>> and attach:
>>
>>   - complete dmesg log
>>   - lspci -vvxxx output for entire system before issue occurs
>>   - lspci -vvxxx output for entire system after issue occurs
>
>
> Hi, I have filed a bug on bugzilla:
> https://bugzilla.kernel.org/show_bug.cgi?id=64541
>
> Actually I have posted some more logs before, you could find them on
> the mailing lists archive:
> http://thread.gmane.org/gmane.linux.kernel.wireless.general/115259
>
> Here is the output of lspci -vxxxx just now. I'll run this command
> again when the bug occurs next time:

Thanks.  But can you please attach the output of "lspci -vvxxx" (not
"-vxxxx") for the entire system before the problem occurs?  All the
info is in the "-xxxx" output, but it's really painful to decode it
all by hand.  Using "-vv" will decode the PCIe Capability structures
where the ASPM configuration is.  And the entire system is
interesting, because ASPM requires configuration on upstream bridges
as well as on the device itself.

My only guess is that there's something wrong with the ASPM
configuration and the device just stops responding to config accesses
(and probably MMIO accesses, too, based on the errors in your dmesg
log).  Or maybe the device got powered off somehow.

Bjorn

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Bjorn Helgaas]

On Fri, Nov 8, 2013 at 10:20 AM, Bjorn Helgaas <bhelgaas@google.com> wrote:
> My only guess is that there's something wrong with the ASPM
> configuration and the device just stops responding to config accesses
> (and probably MMIO accesses, too, based on the errors in your dmesg
> log).  Or maybe the device got powered off somehow.

If you've figured out a way to reproduce this more reliably, it might
be interesting to do "echo on >
/sys/bus/pci/devices/0000:03:00.0/power/control" and see whether it
makes a difference.  That should prevent us from using runtime power
management for the iwlwifi device.

Bjorn

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/9 Bjorn Helgaas <bhelgaas@google.com>:
> it might
> be interesting to do "echo on >
> /sys/bus/pci/devices/0000:03:00.0/power/control" and see whether it
> makes a difference.


Hi, should I run this command after the bug? I just ran this after the
bug occurs, but there is no output in dmesg, and "ip link set wlan0
up" still returns same error ("RTNETLINK answers: Connection timed
out").

-- 
wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Emmanuel Grumbach]

On Sun, Nov 10, 2013 at 12:19 PM, wzyboy <wzyboy@wzyboy.org> wrote:
> 2013/11/9 Bjorn Helgaas <bhelgaas@google.com>:
>> it might
>> be interesting to do "echo on >
>> /sys/bus/pci/devices/0000:03:00.0/power/control" and see whether it
>> makes a difference.
>
>
> Hi, should I run this command after the bug? I just ran this after the
> bug occurs, but there is no output in dmesg, and "ip link set wlan0
> up" still returns same error ("RTNETLINK answers: Connection timed
> out").
>
> --

HW people seem to want to know what happens in you disable L1 substates.
Can you enter you BIOS and check if you have such an option in your BIOS?

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/10 Emmanuel Grumbach <egrumbach@gmail.com>:
> HW people seem to want to know what happens in you disable L1 substates.
> Can you enter you BIOS and check if you have such an option in your BIOS?


Could you be more specific what the option name look like? Or I could
take photos for each tab in BIOS and attach the photos here.

-- 
wzyboy

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

PiANCj4gMjAxMy8xMS8xMCBFbW1hbnVlbCBHcnVtYmFjaCA8ZWdydW1iYWNoQGdtYWlsLmNvbT46
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ZSBjYW4gdHJ5Li4uDQoNCg==

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

[-- Attachment #1: Type: text/plain, Size: 311 bytes --]

2013/11/10 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
> It is really called L1 PM Substate.
> I don't really know the BIOS of ThinkPad... But we can try...


I have booted into BIOS and write down almost all the options, as attached.

By the way, I always attach my laptop to an AC adaptor.


-- 
wzyboy

[-- Attachment #2: x240s-bios.txt --]
[-- Type: text/plain, Size: 2103 bytes --]

[Main]
	UEFI BIOS Version: GIET62WW (2.12)
	UEFI BIOS Date: 2013-09-25
	Embedded Controller Version: GIHT23WW (1.00)
	ME Firmware Version: 9.5.3.1520
	Machine Type Model: 20AKCTO1WW
	System-unit serial number: PF 000N3V
	System board serial number: 12SRT37D112
	Asset Tag: No Asset Information
	CPU Type: Intel(R) Core(TM) i7-4500U CPU
	CPU Speed: 1.80GHz
	Installed memory: 8192MB
	UUID: [...]
	MAC Address (Internal LAN): 28 D2 44 1A BD 26
	UEFI Secure Boot: Off
[Config]
	Network
		Wake on LAN [Disabled]
		Ethernet LAN Option ROM [Disabled]
	USB
		USB UEFI BIOS Support [Enabled]
		Always on USB [Enabled]
		- Charge in Battery Mode [Enabled]
		USB 3.0 Mode [Auto]
	Keyboard/Mouse
		TrackPoint [Enabled]
		Trackpad [Enabled]
		Fn and Ctrl Key swap [Enabled]
	Display
		Boot Display Device [ThinkPad LCD]
	Power
		Intel (R) SpeedStep technology [Enabled]
		- Mode for AC [Maximum Performance]
		- Mode for Battery [Battery Optimized]
		Adaptive Thermal Management
		- Scheme for AC [Maxmize Performance]
		- Scheme for Battery [Balanced]
		CPU Power Management [Enabled]
		Power On with AC Attach [Disabled]
		Intel (R) Rapid Start Technology [Disabled]
		Disable Build-in Battery [Enter]
	Beep and Alarm
		Password Beep [Disabled]
		Keyboard Beep [Disabled]
[Date/Time]
	System Date
	System Time
[Security]
	Password
		[...]
	Fingerprint
		[...]
	Security Chip
		[...]
	UEFI BIOS Update Option
		[...]
	Memory Protection
		Execution Prevention [Disabled]
	Virtualization
		Intel (R) Virtualization Technology [Enabled]
	I/O Port Access
		Ethernet LAN [Enabled]
		Wireless LAN [Enabled]
		Wireless WAN [Enabled]
		Bluetooth [Enabled]
		USB Port [Enabled]
		Memory Card Slot [Enabled]
		Integrated Camera [Enabled]
		Microphone [Enabled]
		Fingerprint Reader [Enabled]
	Internal Device Access
		Bottom Cover Tamper Detection [Disabled]
	Anti-Theft
		[...]
	Secure Boot
		[...]
[Startup]
	Boot
	Network Boot [PCI LAN]
	UEFI/Legacy Boot [Legacy Only]
	- CSM Support [Yes]
	Boot Mode [Quick]
	Option key Display [Enabled]
	Boot device List F12 Option [Enabled]
	Boot Order Lock [Disabled]
[Restart]
	...

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

PiANCj4gMjAxMy8xMS8xMCBHcnVtYmFjaCwgRW1tYW51ZWwgPGVtbWFudWVsLmdydW1iYWNoQGlu
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aGV5IG1hc2sgYWxsIHRoZSBpbnRlcmVzdGluZyBvcHRpb25zLi4uIG9oIHdlbGwuLi4NCg==

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Emmanuel Grumbach]

>>
>> 2013/11/10 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
>> > It is really called L1 PM Substate.
>> > I don't really know the BIOS of ThinkPad... But we can try...
>>
>>
>> I have booted into BIOS and write down almost all the options, as attached.
>>
>> By the way, I always attach my laptop to an AC adaptor.
>>
>
> Cool.... they mask all the interesting options... oh well...

Can you please try this?

diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c
b/drivers/net/wireless/iwlwifi/pcie/trans.c
index ebe351d..f8fbe08 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -131,7 +131,7 @@ static void iwl_pcie_apm_config(struct iwl_trans *trans)
         *    power savings, even without L1.
         */
        pcie_capability_read_word(trans_pcie->pci_dev, PCI_EXP_LNKCTL, &lctl);
-       if (lctl & PCI_EXP_LNKCTL_ASPM_L1) {
+       if (0) {
                /* L1-ASPM enabled; disable(!) L0S */
                iwl_set_bit(trans, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
                dev_info(trans->dev, "L1 Enabled; Disabling L0S\n");

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Bjorn Helgaas]

On Sun, Nov 10, 2013 at 06:19:58PM +0800, wzyboy wrote:
> 2013/11/9 Bjorn Helgaas <bhelgaas@google.com>:
> > it might
> > be interesting to do "echo on >
> > /sys/bus/pci/devices/0000:03:00.0/power/control" and see whether it
> > makes a difference.
> 
> Hi, should I run this command after the bug? I just ran this after the
> bug occurs, but there is no output in dmesg, and "ip link set wlan0
> up" still returns same error ("RTNETLINK answers: Connection timed
> out").

Run the command before the bug occurs.  The idea is to disable run-time
power management.  If the problem is that we're turning off power to
the device, disabling power management might make a difference.

Bjorn

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Emmanuel Grumbach]

>
>
> Sorry I used the wrong command...
>
> I've attached the output of -vvxxx below.
>
> There are three files:
>
> * lspci.vvxxx.normal.txt: When the interface is "state DOWN" in "ip link".
> * lspci.vvxxx.normal2.txt: When the interface is "state UP" in "ip
> link" after I ran "ip link set wlan0 up".
> * lspci.vvxxx.normal3.txt" When the interface is connected to the
> Wi-Fi of my dormitory and got an address (but without default
> gateway, I'm using wired network now).
>

one more thing?
Are you using KVM with pass-through? Or is it a native installation?

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/10 Emmanuel Grumbach <egrumbach@gmail.com>:
> one more thing?
> Are you using KVM with pass-through? Or is it a native installation?


No, I’m using a native installation. I just wiped the pre-installed
Windows OS and booted from Arch Linux installation disk, set up LUKS
(without LVM) and installed the system.

However, as you can see in dmesg "modules linked in", I have
VirtualBox installed and "vboxdrv.ko" loaded.

-- 
wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Bjorn Helgaas]

On Sat, Nov 09, 2013 at 10:46:21AM +0800, wzyboy wrote:
> 2013/11/9 Bjorn Helgaas <bhelgaas@google.com>:
> > Thanks.  But can you please attach the output of "lspci -vvxxx" (not
> > "-vxxxx") for the entire system before the problem occurs?
> 
> 
> Sorry I used the wrong command...
> 
> I've attached the output of -vvxxx below.
> 
> There are three files:
> 
> * lspci.vvxxx.normal.txt: When the interface is "state DOWN" in "ip link".
> * lspci.vvxxx.normal2.txt: When the interface is "state UP" in "ip
> link" after I ran "ip link set wlan0 up".
> * lspci.vvxxx.normal3.txt" When the interface is connected to the
> Wi-Fi of my dormitory and got an address (but without default
> gateway, I'm using wired network now).

The only interesting difference is this (between "normal" and "normal3"):

--- lspci.vvxxx.normal.txt      2013-11-11 14:42:14.000000000 -0700
+++ lspci.vvxxx.normal3.txt     2013-11-11 14:42:14.000000000 -0700

 00:1c.1 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 3 (rev e4) (prog-if 00 [Normal decode])
-               LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
+               LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train+ SlotClk+ DLActive+ BWMgmt+ ABWMgmt-

In "normal3", the Link Training bit is set.  I'm not a hardware person,
but my guess it this might be normal.  The spec says Link Training
indicates that the "LTSSM is in the Configuration or Recovery state,"
and Figure 5-1 shows that the transition from L1 to L0 goes through
the Recovery state.  So we might just be seeing the device returning
from L1 to L0.  Maybe Emmanuel can confirm this with the hardware guys.

Comparing "lspci.vvxxx.normal.txt" with "lspci.vvxxx.patched.bug.txt",
I see these changes in the 00:1c.1 Downstream Port (the bridge that
leads to the 7260 NIC):

--- before      2013-11-11 15:24:04.755738964 -0700
+++ after       2013-11-11 15:24:11.875722068 -0700
 00:1c.1 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 3 (rev e4) (prog-if 00 [Normal decode])
-               DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
+               DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
-               LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
+               LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt+ ABWMgmt-
-               SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
-                       Changed: MRL- PresDet- LinkState+
+               SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
+                       Changed: MRL- PresDet+ LinkState+
-               DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled ARIFwd-
+               DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-

So when the bug occurs,

  - Correctable Error Detected is set
  - Data Link Layer Link Active is cleared
  - Presence Detect State is cleared
  - LTR Mechanism Enable is cleared (spec says this bit must be
    reset to the default value when a Downstream Port goes to
    DL_Down)

This all seems consistent with the device being powered off.  Maybe
the 7260 is on a daughterboard with a bad connection to the system
board?  Any chance you can open up the box and make sure the
connection is tight?

It's possible there's some ASPM issue, but I would think Presence
Detect would still work even if the 7260 had a problem with ASPM.
Here's another experiment to try to rule out ASPM.  Run these
commands as root after the driver is loaded but before the bug occurs:

  setpci -s03:00.0 0x50.W=0x140
  setpci -s00:1c.1 0x50.W=0x040
  lspci -vv

This should disable ASPM completely on that link, and the lspci output
will help verify that.

Bjorn

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Emmanuel Grumbach]

On Tue, Nov 12, 2013 at 7:42 AM, wzyboy <wzyboy@wzyboy.org> wrote:
> Hi, I've got some good news. Here is what I did today:
>
> boot up laptop -> do the sysfs trick -> start downloading a big file
> to benchmark it -> several minutes later the bug occurs -> reboot my
> laptop to recover -> do the setpci trick -> start downloading a big
> file to benchmark it -> more than 5 GiB downloaded (at ~ 2.3 MiB/s)
> and everything works fine!

encouraging. Thanks.
I just wonder... the patch I sent was supposed to tell the HW not to
use L1. So I would have hoped it would have helped in the same way?
After all, L1 is a handshake between the device and the bridge, so
that if the device doesn't initiate / refuses to go into L1, I'd
expect it to have the same effect as disabling L1 in the ASPM register
PCIe config space?
Obviously I am wrong though.

>
> Here are the output of lspci -vv after running two "setpci" commands.
>
> There is also a screenshot of ThinkPad X240s HMM, showing how the
> wireless card is connected to the motherboard. In this figure #10 is
> the Wireless LAN card. It is connected to the motherboard with Intel's
> NGFF connector.
>
> I will continue downloading big files to benchmark it.
>

Thanks

> --
> wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Emmanuel Grumbach]

On Tue, Nov 12, 2013 at 9:02 AM, Emmanuel Grumbach <egrumbach@gmail.com> wrote:
> On Tue, Nov 12, 2013 at 7:42 AM, wzyboy <wzyboy@wzyboy.org> wrote:
>> Hi, I've got some good news. Here is what I did today:
>>
>> boot up laptop -> do the sysfs trick -> start downloading a big file
>> to benchmark it -> several minutes later the bug occurs -> reboot my
>> laptop to recover -> do the setpci trick -> start downloading a big
>> file to benchmark it -> more than 5 GiB downloaded (at ~ 2.3 MiB/s)
>> and everything works fine!
>
> encouraging. Thanks.
> I just wonder... the patch I sent was supposed to tell the HW not to
> use L1. So I would have hoped it would have helped in the same way?
> After all, L1 is a handshake between the device and the bridge, so
> that if the device doesn't initiate / refuses to go into L1, I'd
> expect it to have the same effect as disabling L1 in the ASPM register
> PCIe config space?
> Obviously I am wrong though.
>

can you please try to see if you have BIOS updates? (It seems that all
the BIOS update tools run on windows... - but I can have a bootable CD
:))

You can also check this out:
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=TOOL-ASU
This might help to remove support for L1 substates.
I guess it'd be nice to ask Lenovo too about how to find these options
in BIOS. From our experience, there are a lot of features and options
in BIOS that are accessible only after you enter a "secret" (I meant
obscure) sequence of keys.

>>
>> Here are the output of lspci -vv after running two "setpci" commands.
>>
>> There is also a screenshot of ThinkPad X240s HMM, showing how the
>> wireless card is connected to the motherboard. In this figure #10 is
>> the Wireless LAN card. It is connected to the motherboard with Intel's
>> NGFF connector.
>>
>> I will continue downloading big files to benchmark it.
>>
>
> Thanks
>
>> --
>> wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/12 wzyboy <wzyboy@wzyboy.org>:
> I will continue downloading big files to benchmark it.

Hi guys, good news!

Six hours ago I ran a simple loop script to repeatly download big
files (and saving to /dev/null) and went to have lessons. Six hours
later it's after school. I found that the wireless still works!

So I believe that the two "setpci" commands really work! Thanks Bjorn
and Emmanuel!

-- 
wzyboy

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

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bGlhYmx5IHVzZSB5b3VyIE5JQyBub3cuDQoNCg==

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/12 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
> Well... I haven't done much, but the setpci isn't really a solution - it is more a work around.
> Bjorn is basically disabling L1 PCIe feature which allows to save power. While you might not care, I do :)
> The HW folks here would still want to know if you can disable L1 substates feature (not that I know what it is - but I can guess).
> If you can try to:
>  * upgrade your BIOS (if needed)
>  * check the advanced options I sent to you to see if you can unlock the advanced menu in your BIOS
>
> it'd help me to understand the issue.
> In any case, I am happy that you have a way to reliably use your NIC now.


Oh, actually I upgraded my BIOS to newest version the day I got this
laptop (12 days ago).

ThinkPad really changed a lot after being acquired by Lenovo...

As of ASU, I've downloaded it but I do not know how to show hidden
BIOS options with it since I have little knowledge about hardware...

Here is what I got when running ./asu64 dump:

wzyboy@xenien:~/Desktop/asu$ sudo ./asu64 dump
IBM Advanced Settings Utility version 9.41.81K
Licensed Materials - Property of IBM
(C) Copyright IBM Corp. 2007-2013 All Rights Reserved
     0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F
00: 00>00*00*00*00*00*67*8b*45*06*67*f6*45*ec*01*75
10: 03*b8*00*f0*8e*d8*67*8e*45*04*67*8b*7d*02*33*c0
20: 26*89*45*04*a1*61*09*26*89*45*02*a0*63*09*26*88
30: 45*01*26*c6*05*01*b8*00*00*c3*b8*82*00*c3*b8*82
40: 00*c3*b8*82*00*c3*b8*82*00*c3*b8*00*10*26*89*45
50: 0d*f8*c3*9c*66*60*e4*60*eb*00*eb*00*66*61*9d*c3
60: 1e*b8*40*00*8e*d8*f6*06*10*04*04*74*03*1f*f8*c3
70: 1f*f9*c3*f8*c3*25*00*00*41*d0*00*00*08*00*00*03
80: 00*22*04*00*47*01*20*00*20*00*00*02*47*01*a0*00
90: a0*00*00*02*79*00*79*00*79*00*45*00*00*41*d0*02
a0: 00*08*01*00*03*00*2a*10*00*47*01*00*00*00*00*00
b0: 10*47*01*81*00*81*00*00*03*47*01*87*00*87*00*00
c0: 01*47*01*89*00*89*00*00*03*47*01*8f*00*8f*00*00
d0: 03*47*01*c0*00*c0*00*00*20*79*00*79*00*79*00*1d
e0: 00*00*41*d0*01*00*08*02*01*03*00*22*01*00*47*01
f0: 40*00*40*00*00*04*79*00*79*00*79*00*1d*00*00*41


Could you help by telling me what command should I run to enable those
hidden options in BIOS?
-- 
wzyboy

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

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Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/12 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
> If you say so :) - I don'tknow :)
>
I checked Lenovo's page again:
http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS035950

It says the latest BIOS version is 2.12, and this is the version I am using...
>
> I have no clue unfortunately - maybe contact Lenovo?

I sent an email to Lenovo support and am waiting for reply. I hope the
consumer service is as good as in IBM-era...

-- 
wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Bjorn Helgaas]

On Tue, Nov 12, 2013 at 5:16 AM, Grumbach, Emmanuel
<emmanuel.grumbach@intel.com> wrote:
>>
>> 2013/11/12 wzyboy <wzyboy@wzyboy.org>:
>> > I will continue downloading big files to benchmark it.
>>
>> Hi guys, good news!
>>
>> Six hours ago I ran a simple loop script to repeatly download big files (and
>> saving to /dev/null) and went to have lessons. Six hours later it's after school.
>> I found that the wireless still works!
>>
>> So I believe that the two "setpci" commands really work! Thanks Bjorn and
>> Emmanuel!
>
> Well... I haven't done much, but the setpci isn't really a solution - it is more a work around.
> Bjorn is basically disabling L1 PCIe feature which allows to save power. While you might not care, I do :)
> The HW folks here would still want to know if you can disable L1 substates feature (not that I know what it is - but I can guess).
> If you can try to:
>  * upgrade your BIOS (if needed)
>  * check the advanced options I sent to you to see if you can unlock the advanced menu in your BIOS
>
> it'd help me to understand the issue.
> In any case, I am happy that you have a way to reliably use your NIC now.

The setpci experiment was only for debugging.  Obviously it's not a
real fix, and it doesn't help any other users of this ThinkPad X240s.
But it does seem clear that the problem is related to ASPM.

And it looks like the same thing we investigated here:
https://bugzilla.kernel.org/show_bug.cgi?id=57331, which is even on
the same device.

>From your dmesg logs:

  ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
  acpi PNP0A08:00: ACPI _OSC control for PCIe not granted, disabling ASPM

The messages are misleading.  Linux does not actually disable ASPM as
you did with setpci.  All Linux does is leave the current ASPM
configuration untouched, because we believe that the BIOS is managing
it.  The BIOS must have enabled ASPM on this device (you could verify
this by booting with "pci=earlydump"), and BIOS also says the OS must
not enable ASPM control (via the ACPI FADT table and the PCI host
bridge _OSC method).

It would really help if you still had Windows on this system, and we
could look and see whether it disables ASPM for this device (if
anybody does have Windows, I would probably use AIDA64 to dump the PCI
config space).  I did experiments for bug 57331 that suggested that
Windows leaves ASPM alone just like Linux does, but my experiments
were on qemu, not on real hardware, and I didn't have an Intel wifi
device.

If the Windows driver works fine even with ASPM enabled, that would
suggest that the problem is something in the Linux iwlwifi driver.  If
Windows does actually disable ASPM on this device, then we would have
to figure out if there's a way we can safely make Linux also disable
ASPM.

Bjorn

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

> 
> On Tue, Nov 12, 2013 at 5:16 AM, Grumbach, Emmanuel
> <emmanuel.grumbach@intel.com> wrote:
> >>
> >> 2013/11/12 wzyboy <wzyboy@wzyboy.org>:
> >> > I will continue downloading big files to benchmark it.
> >>
> >> Hi guys, good news!
> >>
> >> Six hours ago I ran a simple loop script to repeatly download big
> >> files (and saving to /dev/null) and went to have lessons. Six hours later it's
> after school.
> >> I found that the wireless still works!
> >>
> >> So I believe that the two "setpci" commands really work! Thanks Bjorn
> >> and Emmanuel!
> >
> > Well... I haven't done much, but the setpci isn't really a solution - it is more
> a work around.
> > Bjorn is basically disabling L1 PCIe feature which allows to save
> > power. While you might not care, I do :) The HW folks here would still want
> to know if you can disable L1 substates feature (not that I know what it is -
> but I can guess).
> > If you can try to:
> >  * upgrade your BIOS (if needed)
> >  * check the advanced options I sent to you to see if you can unlock
> > the advanced menu in your BIOS
> >
> > it'd help me to understand the issue.
> > In any case, I am happy that you have a way to reliably use your NIC now.
> 
> The setpci experiment was only for debugging.  Obviously it's not a real fix,
> and it doesn't help any other users of this ThinkPad X240s.
> But it does seem clear that the problem is related to ASPM.
> 
> And it looks like the same thing we investigated here:
> https://bugzilla.kernel.org/show_bug.cgi?id=57331, which is even on the
> same device.
> 

Not the same device but the same driver.

> From your dmesg logs:
> 
>   ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
>   acpi PNP0A08:00: ACPI _OSC control for PCIe not granted, disabling ASPM
> 

Right - I remember the discussion we had on that.
On this device (7260 that has an issue with ASPM), we don't call pci_disable_link_state, because we know it is supposed to work...
This code is new in 3.12, and is not in 3.11. The first log that the user here sent is on 3.11, hence you still see the error message from PCI subsystem.
Now (3.12) the code reads:

	if (!cfg->base_params->pcie_l1_allowed) {
		/*
		 * W/A - seems to solve weird behavior. We need to remove this
		 * if we don't want to stay in L1 all the time. This wastes a
		 * lot of power.
		 */
		pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
				       PCIE_LINK_STATE_L1 |
				       PCIE_LINK_STATE_CLKPM);
	}

and the if is *not* taken and 7260 which is the device we are talking about.

> The messages are misleading.  Linux does not actually disable ASPM as you
> did with setpci.  All Linux does is leave the current ASPM configuration
> untouched, because we believe that the BIOS is managing it.  The BIOS must
> have enabled ASPM on this device (you could verify this by booting with
> "pci=earlydump"), and BIOS also says the OS must not enable ASPM control
> (via the ACPI FADT table and the PCI host bridge _OSC method).
> 
> It would really help if you still had Windows on this system, and we could look
> and see whether it disables ASPM for this device (if anybody does have
> Windows, I would probably use AIDA64 to dump the PCI config space).  I did
> experiments for bug 57331 that suggested that Windows leaves ASPM alone
> just like Linux does, but my experiments were on qemu, not on real
> hardware, and I didn't have an Intel wifi device.
> 
> If the Windows driver works fine even with ASPM enabled, that would
> suggest that the problem is something in the Linux iwlwifi driver.  If Windows
> does actually disable ASPM on this device, then we would have to figure out
> if there's a way we can safely make Linux also disable ASPM.
> 

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Bjorn Helgaas]

On Tue, Nov 12, 2013 at 11:25 AM, Grumbach, Emmanuel
<emmanuel.grumbach@intel.com> wrote:

> Right - I remember the discussion we had on that.
> On this device (7260 that has an issue with ASPM), we don't call pci_disable_link_state, because we know it is supposed to work...

If ASPM is supposed to work as far as the hardware is concerned, I
guess you're saying this must be an iwlwifi driver issue.  Right?

If you think it's a PCI core problem, we have to figure out what the
core needs to do differently.  If somebody can point to a difference
in the ASPM configuration between Windows and Linux, that would be a
good start.

Bjorn

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Emmanuel Grumbach]

On 11/12/2013 09:14 PM, Bjorn Helgaas wrote:
> On Tue, Nov 12, 2013 at 11:25 AM, Grumbach, Emmanuel
> <emmanuel.grumbach@intel.com> wrote:
> 
>> Right - I remember the discussion we had on that.
>> On this device (7260 that has an issue with ASPM), we don't call pci_disable_link_state, because we know it is supposed to work...
> 
> If ASPM is supposed to work as far as the hardware is concerned, I
> guess you're saying this must be an iwlwifi driver issue.  Right?

ASPM is supposed to work as far as the hardware is concerned.
We might very well have an issue in iwlwifi - and I am checking this
internally with our System guys.
It can be a PCI core problem too, and it could also be a platform / BIOS
/ Lenovo issue.
Of course, I have no clue which of these is the culprit here.
Our System folks seemed to say that this new device uses L1 substates
which can be enabled in Haswell platform which the user owns.
Now - L1 substates is a new feature and might introduce issues
(apparently) - and this is why they (System folks) wanted the try
without L1 substates. But disabling L1 substates doesn't seem trivial
with the production BIOS of Lenovo. So I am pretty stuck here.
Another possibility is to run a PCI analyser on the machine, but that
requires to have the machine in the lab...

> If you think it's a PCI core problem, we have to figure out what the
> core needs to do differently.  If somebody can point to a difference
> in the ASPM configuration between Windows and Linux, that would be a
> good start.
> 
> Bjorn
> 

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Bjorn Helgaas]

On Tue, Nov 12, 2013 at 12:37 PM, Emmanuel Grumbach <egrumbach@gmail.com> wrote:
> On 11/12/2013 09:14 PM, Bjorn Helgaas wrote:
>> On Tue, Nov 12, 2013 at 11:25 AM, Grumbach, Emmanuel
>> <emmanuel.grumbach@intel.com> wrote:
>>
>>> Right - I remember the discussion we had on that.
>>> On this device (7260 that has an issue with ASPM), we don't call pci_disable_link_state, because we know it is supposed to work...
>>
>> If ASPM is supposed to work as far as the hardware is concerned, I
>> guess you're saying this must be an iwlwifi driver issue.  Right?
>
> ASPM is supposed to work as far as the hardware is concerned.
> We might very well have an issue in iwlwifi - and I am checking this
> internally with our System guys.
> It can be a PCI core problem too, and it could also be a platform / BIOS
> / Lenovo issue.
> Of course, I have no clue which of these is the culprit here.
> Our System folks seemed to say that this new device uses L1 substates
> which can be enabled in Haswell platform which the user owns.
> Now - L1 substates is a new feature and might introduce issues
> (apparently) - and this is why they (System folks) wanted the try
> without L1 substates. But disabling L1 substates doesn't seem trivial
> with the production BIOS of Lenovo. So I am pretty stuck here.

For debugging purposes, we could configure L1 substates with setpci,
as we did for ASPM.  The Linux kernel knows nothing about L1
substates, so the PCI core isn't doing anything with them.  It's
possible the driver itself could muck with L1 substate configuration,
but that would be discouraged, and I don't see anything in iwlwifi
that is doing that.

The lspci output in
https://bugzilla.kernel.org/attachment.cgi?id=114061 shows an L1 PM
Substates extended capability (capability ID 0x1e) for the Root Port
leading to the 7260 device, but not for the 7260 device itself:

  00:1c.1 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root
Port 3 (rev e4) (prog-if 00 [Normal decode])
    Capabilities: [200 v1] #1e

Per sec 5.5.4 of the ECN for L1 PM Substates (15 Aug 2012), I think L1
substates must be configured on both ends of the link, and if the 7260
device doesn't have that capability, I don't see how it could be
enabled.

The lspci version wzyboy has doesn't decode the L1 PM Substates
capability, but there is a newer version at
git://git.kernel.org/pub/scm/utils/pciutils/pciutils.git that should
decode it.  Also, "lspci -vvxxx" didn't hexdump this capability, which
should be at offset 0x200.  Using "lspci -xxxx" (four "x"s) should
dump it, and we can decode it manually.

wzyboy, can you run these commands before the bug occurs and before
using the "setpci" workaround:

  lspci -vvxxxx -s00:1c.1
  lspci -vvxxxx -s03:00.0

Bjorn

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/13 wzyboy <wzyboy@wzyboy.org>:
> After today's morning lessons I booted up my laptop with pci=earlydump
> kernel perameter and here are the output of lspci (without setpci and
> before bug hit) and dmesg.


Hi, I have a question: The "setpci" workaround can now make me use my
NIC without having to reboot my laptop from time to time. However,
they are under Linux 3.12 with Grumbach's patch. I'm wondering whether
"setpci" workaround still works in official Linux 3.12 kernel?

I'll try official Linux 3.12 later.

-- 
wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/13 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
> It'll work on any kernel, including 3.11 you had before
>
> Sent from my phone.

Thanks Grumbach. I'm now in Linux 3.12 without your patch. The
"setpci" workaround still works!

-- 
wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Bjorn Helgaas]

[+cc Bjørn]

On Tue, Nov 12, 2013 at 10:39 PM, wzyboy <wzyboy@wzyboy.org> wrote:
> 2013/11/13 Bjorn Helgaas <bhelgaas@google.com>:
>> wzyboy, can you run these commands before the bug occurs and before
>> using the "setpci" workaround:
>>
>>   lspci -vvxxxx -s00:1c.1
>>   lspci -vvxxxx -s03:00.0
>
> After today's morning lessons I booted up my laptop with pci=earlydump
> kernel perameter and here are the output of lspci (without setpci and
> before bug hit) and dmesg.

Thanks.  Are you 100% sure the lspci output is before the setpci
workaround?  The dmesg earlydump shows this (the ASPM control bits are
in the 16-bit Link Control register, which is at 0x50 for both
devices):

    00:1c.1 Root Port config
         50: 42 00 11 70 00 b2 14 00 00 00 40 01 00 00 00 00
    03:00.0 Intel 7260 config:
         50: 42 01 11 10 00 00 00 00 00 00 00 00 00 00 00 00

So at boot-time, ASPM was enabled.  But the lspci shows:

    00:1c.1 Root Port config
      Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
        LnkCtl: ASPM Disabled
         50: 40 00 11 70 00 b2 14 00 00 00 40 01 00 00 00 00
    03:00.0 Intel 7620 config
      Capabilities: [40] Express (v2) Endpoint, MSI 00
        LnkCtl: ASPM Disabled
         50: 40 01 11 10 00 00 00 00 00 00 00 00 00 00 00 00

And now ASPM is disabled.  I'm pretty sure the kernel did not disable
ASPM, so I assume it was disabled by setpci.

I manually decoded the L1 PM Substates registers for both the Root
Port and the 7260 device (details appended below), and everything
appears enabled there (though I think that since ASPM is disabled, L1
PM substates is ignored).

My conclusion is that the BIOS enabled both ASPM and L1 PM substates.
Obviously the BIOS will do the same when booting Windows, and I assume
the device works fine with the Windows driver.  Based on our previous
experience with Windows, I don't think it will change the ASPM
configuration because the ACPI FADT table and the PCI _OSC method do
not grant control of ASPM to the OS.  Therefore, I think the problem
is in the Linux iwlwifi driver.

I don't think there's anything more I can do here because there's no
evidence that the PCI core is doing anything wrong.  But if it turns
out that we *should* be doing something differently, let me know.

Bjorn


    00:1c.1 Root Port config
      Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
        LnkCtl: ASPM Disabled
         50: 40 00 11 70 00 b2 14 00 00 00 40 01 00 00 00 00
      Capabilities: [200 v1] #1e
        200: 1e 00 01 00 1f 28 28 00 1f 28 a0 40 f0 00 00 00
        210: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
          Header                        0x0001001e
            ID 0x001e (L1 Substates)
            Version 1
          Capabilities                  0x0028281f
          Control 1                     0x40a0281f
            0x40a0281f  Control 1
            0x00000001    PCI-PM L1.2 Enable
            0x00000002    PCI-PM L1.1 Enable
            0x00000004    ASPM L1.2 Enable
            0x00000008    ASPM L1.1 Enable
            0x00000010    RsvdP
            0x00002800    Common_Mode_Restore_Time
            0x00a00000    LTR_L1.2_THRESHOLD_Value
            0x40000000    LTR_L1.2_THRESHOLD_Scale
          Control 2                     0x000000f0
            0x000000f0  Control 2
            0x000000f0    T_POWER_ON Value

    03:00.0 Intel 7620 config
      Capabilities: [40] Express (v2) Endpoint, MSI 00
        LnkCtl: ASPM Disabled
         50: 40 01 11 10 00 00 00 00 00 00 00 00 00 00 00 00
      Capabilities: [154 v1] Vendor Specific Information: ID=cafe
Rev=1 Len=014 <?>
        150:             0b 00 01 00 fe ca 41 01 1f 1e f0 00
        160: 0f 00 a0 40 f0 00 00 00 00 00 00 00 00 00 00 00
          Header                        0x0001000b
            ID 0x000b (Vendor-specific)
            Version 1
          Vendor-specific header        0x0141cafe
            VSEC ID 0xcafe
            VSEC Rev 1
            Length 0x14
          Capabilities                  0x00f01e1f
          Control 1                     0x40a0000f
            0x40a0000f  Control 1
            0x00000001    PCI-PM L1.2 Enable
            0x00000002    PCI-PM L1.1 Enable
            0x00000004    ASPM L1.2 Enable
            0x00000008    ASPM L1.1 Enable
          Control 2                     0x000000f0

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

> 
> [+cc Bjørn]
> 
> On Tue, Nov 12, 2013 at 10:39 PM, wzyboy <wzyboy@wzyboy.org> wrote:
> > 2013/11/13 Bjorn Helgaas <bhelgaas@google.com>:
> >> wzyboy, can you run these commands before the bug occurs and before
> >> using the "setpci" workaround:
> >>
> >>   lspci -vvxxxx -s00:1c.1
> >>   lspci -vvxxxx -s03:00.0
> >
> > After today's morning lessons I booted up my laptop with pci=earlydump
> > kernel perameter and here are the output of lspci (without setpci and
> > before bug hit) and dmesg.
> 
> Thanks.  Are you 100% sure the lspci output is before the setpci workaround?
> The dmesg earlydump shows this (the ASPM control bits are in the 16-bit Link
> Control register, which is at 0x50 for both
> devices):
> 
>     00:1c.1 Root Port config
>          50: 42 00 11 70 00 b2 14 00 00 00 40 01 00 00 00 00
>     03:00.0 Intel 7260 config:
>          50: 42 01 11 10 00 00 00 00 00 00 00 00 00 00 00 00
> 
> So at boot-time, ASPM was enabled.  But the lspci shows:
> 
>     00:1c.1 Root Port config
>       Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
>         LnkCtl: ASPM Disabled
>          50: 40 00 11 70 00 b2 14 00 00 00 40 01 00 00 00 00
>     03:00.0 Intel 7620 config
>       Capabilities: [40] Express (v2) Endpoint, MSI 00
>         LnkCtl: ASPM Disabled
>          50: 40 01 11 10 00 00 00 00 00 00 00 00 00 00 00 00
> 
> And now ASPM is disabled.  I'm pretty sure the kernel did not disable ASPM,
> so I assume it was disabled by setpci.
> 
> I manually decoded the L1 PM Substates registers for both the Root Port and
> the 7260 device (details appended below), and everything appears enabled
> there (though I think that since ASPM is disabled, L1 PM substates is
> ignored).
> 
> My conclusion is that the BIOS enabled both ASPM and L1 PM substates.
> Obviously the BIOS will do the same when booting Windows, and I assume
> the device works fine with the Windows driver.  Based on our previous
> experience with Windows, I don't think it will change the ASPM configuration
> because the ACPI FADT table and the PCI _OSC method do not grant control
> of ASPM to the OS.  Therefore, I think the problem is in the Linux iwlwifi
> driver.
> 
> I don't think there's anything more I can do here because there's no
> evidence that the PCI core is doing anything wrong.  But if it turns out that we
> *should* be doing something differently, let me know.
> 

Right - no evidence of anything - Thank you a lot for all your help. I have learnt a lot from this thread.
I guess I'll try to disable L1 PM substates with setpci command and see what happens.



> Bjorn
> 
> 
>     00:1c.1 Root Port config
>       Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
>         LnkCtl: ASPM Disabled
>          50: 40 00 11 70 00 b2 14 00 00 00 40 01 00 00 00 00
>       Capabilities: [200 v1] #1e
>         200: 1e 00 01 00 1f 28 28 00 1f 28 a0 40 f0 00 00 00
>         210: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>           Header                        0x0001001e
>             ID 0x001e (L1 Substates)
>             Version 1
>           Capabilities                  0x0028281f
>           Control 1                     0x40a0281f
>             0x40a0281f  Control 1
>             0x00000001    PCI-PM L1.2 Enable
>             0x00000002    PCI-PM L1.1 Enable
>             0x00000004    ASPM L1.2 Enable
>             0x00000008    ASPM L1.1 Enable
>             0x00000010    RsvdP
>             0x00002800    Common_Mode_Restore_Time
>             0x00a00000    LTR_L1.2_THRESHOLD_Value
>             0x40000000    LTR_L1.2_THRESHOLD_Scale
>           Control 2                     0x000000f0
>             0x000000f0  Control 2
>             0x000000f0    T_POWER_ON Value
> 
>     03:00.0 Intel 7620 config
>       Capabilities: [40] Express (v2) Endpoint, MSI 00
>         LnkCtl: ASPM Disabled
>          50: 40 01 11 10 00 00 00 00 00 00 00 00 00 00 00 00
>       Capabilities: [154 v1] Vendor Specific Information: ID=cafe
> Rev=1 Len=014 <?>
>         150:             0b 00 01 00 fe ca 41 01 1f 1e f0 00
>         160: 0f 00 a0 40 f0 00 00 00 00 00 00 00 00 00 00 00
>           Header                        0x0001000b
>             ID 0x000b (Vendor-specific)
>             Version 1
>           Vendor-specific header        0x0141cafe
>             VSEC ID 0xcafe
>             VSEC Rev 1
>             Length 0x14
>           Capabilities                  0x00f01e1f
>           Control 1                     0x40a0000f
>             0x40a0000f  Control 1
>             0x00000001    PCI-PM L1.2 Enable
>             0x00000002    PCI-PM L1.1 Enable
>             0x00000004    ASPM L1.2 Enable
>             0x00000008    ASPM L1.1 Enable
>           Control 2                     0x000000f0

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

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cyBzZXRwY2kgY29tbWFuZHMpDQoNCg0KVGhhbmsgeW91DQo=

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

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Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/14 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
> Awesome - you have L1 enabled:


Though do not understand but it seems like a good news :-)

Does that mean you find a real fix instead of a workaround? Congratulations!

--
wzyboy

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

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Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Bjorn Helgaas]

On Thu, Nov 14, 2013 at 1:39 AM, Grumbach, Emmanuel
<emmanuel.grumbach@intel.com> wrote:
>> > Awesome - you have L1 enabled:
>>
>> Though do not understand but it seems like a good news :-)
>
> You are saving power (and I know that at least, L1 works).
> L1 PM substates doesn't work (but that's a brand new feature)
>
>> Does that mean you find a real fix instead of a workaround? Congratulations!
>
> No. The real fix should come from the driver (unlikely from what I hear from system people here) or disable in BIOS.
> So I guess you'd need to ask Lenovo how to disable L1 PM Substate in BIOS.

Why would it be unlikely to fix the driver?  Do people think the
problem is not actually in the driver?

Asking Lenovo how to disable L1 PM substates is really a non-answer.
Only the extremely technical and extremely patient user (hi wzyboy :))
will even bother to investigate why wifi works fine with Windows but
not with Linux.  The only thing Lenovo *could* do is to release a new
BIOS with a switch to control L1 PM Substates.  If I were Lenovo, I
would never do that because then I would have to tell customers
"disable this for Linux, enable this for Windows," and I'd have to
deal with support calls about devices using more power than they
should, battery life being shorter, etc.  Plus you'd have to ask every
Linux user to upgrade their BIOS.  That's all just a terrible user
experience.

Bjorn

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/15 Bjorn Helgaas <bhelgaas@google.com>:
> Why would it be unlikely to fix the driver?  Do people think the
> problem is not actually in the driver?
>
> Asking Lenovo how to disable L1 PM substates is really a non-answer.
> Only the extremely technical and extremely patient user (hi wzyboy :))
> will even bother to investigate why wifi works fine with Windows but
> not with Linux.  The only thing Lenovo *could* do is to release a new
> BIOS with a switch to control L1 PM Substates.  If I were Lenovo, I
> would never do that because then I would have to tell customers
> "disable this for Linux, enable this for Windows," and I'd have to
> deal with support calls about devices using more power than they
> should, battery life being shorter, etc.  Plus you'd have to ask every
> Linux user to upgrade their BIOS.  That's all just a terrible user
> experience.


I am a little confused. There are two sets of "setpci" commands, both
of which can make me use my NIC reliably. But you two say they are
just workarounds, not real fixes.

I know the "side effect" of first two "setpci" commands is consuming
more power. (Actually by my experience of running on battery, I did
not notice ...)

But Grumbach said after the second two "setpci" commands enables "L1".
Does it mean it saves power? So what's the "side effect" of second two
"setpci" commands?

IMHO, if this could user use their NIC reliably, maybe Grumbach may
write these commands to iwlwifi driver and run them when 7260 is
detected...

BTW, no replies from Lenovo, yet.

--
wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/15 wzyboy <wzyboy@wzyboy.org>:
> IMHO, if this could user use their NIC reliably, maybe Grumbach may
> write these commands to iwlwifi driver and run them when 7260 is
> detected...


Or maybe you could add an option, which enables this "workaround" if
user wants. A user could simply write a /etc/modprobe.d/iwlwifi.conf
and enable this "workaround", to use their NICs without having to
reboot from time to time...

--
wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Emmanuel Grumbach]

On 11/15/2013 05:06 AM, wzyboy wrote:
> 2013/11/15 Bjorn Helgaas <bhelgaas@google.com>:
>> Why would it be unlikely to fix the driver?  Do people think the
>> problem is not actually in the driver?
>>
>> Asking Lenovo how to disable L1 PM substates is really a non-answer.
>> Only the extremely technical and extremely patient user (hi wzyboy :))
>> will even bother to investigate why wifi works fine with Windows but
>> not with Linux.  The only thing Lenovo *could* do is to release a new
>> BIOS with a switch to control L1 PM Substates.  If I were Lenovo, I
>> would never do that because then I would have to tell customers
>> "disable this for Linux, enable this for Windows," and I'd have to
>> deal with support calls about devices using more power than they
>> should, battery life being shorter, etc.  Plus you'd have to ask every
>> Linux user to upgrade their BIOS.  That's all just a terrible user
>> experience.
> 
> 
> I am a little confused. There are two sets of "setpci" commands, both
> of which can make me use my NIC reliably. But you two say they are
> just workarounds, not real fixes.
> 

Right - because they force a mode that the BIOS doesn't allow. The BIOS
doesn't allow the OS (the driver) to decide in what mode to work - so we
cannot reach the same effect as the setpci command from the OS / driver
level. setpci just directly accesses the HW without asking the
permissions of anyone.

> I know the "side effect" of first two "setpci" commands is consuming
> more power. (Actually by my experience of running on battery, I did
> not notice ...)
> 
> But Grumbach said after the second two "setpci" commands enables "L1".
> Does it mean it saves power? So what's the "side effect" of second two
> "setpci" commands?
> 

They are both the same in terms of side-effects. The first set of setpci
commands will disable L1 altogether - meaning you don't save any power.
The second set of setpci doesn't disable L1, but disable a more subtle
power state (actually several) which are defined as L1 PM substates. In
theses substates, you save less power than in L1 (I think) but you are
more likely to be able to reach them. After all, it is always the same
story - the deeper you sleep, you longer it takes to wake up. And if it
takes longer to wake up, it also means that in several cases you won't
chose to go to sleep. So the way PCI folks help to save power even in
case where you cannot go to a deep sleep is to define states in the
middle in which you save less power, but in which you are more likely to
be. Again - time spent in each state and power saved in each state trade
off.
Now:
L1 - deep sleep
L1 PM substate - something in the middle.

First setpci command - disable both features.
Second setpci command - disable only the second feature.

Regarding side effects... I don't think this is really "dangerous". But
this is not a fix in the way that I wouldn't like to deploy millions of
machines like that. The risk you have here is probably to have a bad
timing and have the setpci commands run exactly when the link is in a
state that setpci disables. That would be bad. How bad? Probably would
just require a reboot - or worst case G3 (take the battery off).

> IMHO, if this could user use their NIC reliably, maybe Grumbach may
> write these commands to iwlwifi driver and run them when 7260 is
> detected...

I can't as exlained above.

> 
> BTW, no replies from Lenovo, yet.
> 


> Or maybe you could add an option, which enables this "workaround" if
> user wants. A user could simply write a /etc/modprobe.d/iwlwifi.conf
> and enable this "workaround", to use their NICs without having to
> reboot from time to time...

same.

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

Thanks a lot for explaination, Emmanuel!

Now I finally know why this is a "catch-22" situation: Disabling those
features with OS/drvier cannot be as neat as disabling them directly
in BIOS. And there may be chance, that disabling them at a bad timing
may cause G3...

--
wzyboy


2013/11/15 Emmanuel Grumbach <egrumbach@gmail.com>:
>
>
> On 11/15/2013 05:06 AM, wzyboy wrote:
>> 2013/11/15 Bjorn Helgaas <bhelgaas@google.com>:
>>> Why would it be unlikely to fix the driver?  Do people think the
>>> problem is not actually in the driver?
>>>
>>> Asking Lenovo how to disable L1 PM substates is really a non-answer.
>>> Only the extremely technical and extremely patient user (hi wzyboy :))
>>> will even bother to investigate why wifi works fine with Windows but
>>> not with Linux.  The only thing Lenovo *could* do is to release a new
>>> BIOS with a switch to control L1 PM Substates.  If I were Lenovo, I
>>> would never do that because then I would have to tell customers
>>> "disable this for Linux, enable this for Windows," and I'd have to
>>> deal with support calls about devices using more power than they
>>> should, battery life being shorter, etc.  Plus you'd have to ask every
>>> Linux user to upgrade their BIOS.  That's all just a terrible user
>>> experience.
>>
>>
>> I am a little confused. There are two sets of "setpci" commands, both
>> of which can make me use my NIC reliably. But you two say they are
>> just workarounds, not real fixes.
>>
>
> Right - because they force a mode that the BIOS doesn't allow. The BIOS
> doesn't allow the OS (the driver) to decide in what mode to work - so we
> cannot reach the same effect as the setpci command from the OS / driver
> level. setpci just directly accesses the HW without asking the
> permissions of anyone.
>
>> I know the "side effect" of first two "setpci" commands is consuming
>> more power. (Actually by my experience of running on battery, I did
>> not notice ...)
>>
>> But Grumbach said after the second two "setpci" commands enables "L1".
>> Does it mean it saves power? So what's the "side effect" of second two
>> "setpci" commands?
>>
>
> They are both the same in terms of side-effects. The first set of setpci
> commands will disable L1 altogether - meaning you don't save any power.
> The second set of setpci doesn't disable L1, but disable a more subtle
> power state (actually several) which are defined as L1 PM substates. In
> theses substates, you save less power than in L1 (I think) but you are
> more likely to be able to reach them. After all, it is always the same
> story - the deeper you sleep, you longer it takes to wake up. And if it
> takes longer to wake up, it also means that in several cases you won't
> chose to go to sleep. So the way PCI folks help to save power even in
> case where you cannot go to a deep sleep is to define states in the
> middle in which you save less power, but in which you are more likely to
> be. Again - time spent in each state and power saved in each state trade
> off.
> Now:
> L1 - deep sleep
> L1 PM substate - something in the middle.
>
> First setpci command - disable both features.
> Second setpci command - disable only the second feature.
>
> Regarding side effects... I don't think this is really "dangerous". But
> this is not a fix in the way that I wouldn't like to deploy millions of
> machines like that. The risk you have here is probably to have a bad
> timing and have the setpci commands run exactly when the link is in a
> state that setpci disables. That would be bad. How bad? Probably would
> just require a reboot - or worst case G3 (take the battery off).
>
>> IMHO, if this could user use their NIC reliably, maybe Grumbach may
>> write these commands to iwlwifi driver and run them when 7260 is
>> detected...
>
> I can't as exlained above.
>
>>
>> BTW, no replies from Lenovo, yet.
>>
>
>
>> Or maybe you could add an option, which enables this "workaround" if
>> user wants. A user could simply write a /etc/modprobe.d/iwlwifi.conf
>> and enable this "workaround", to use their NICs without having to
>> reboot from time to time...
>
> same.
>

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Emmanuel Grumbach]

On Fri, Nov 15, 2013 at 11:04 AM, wzyboy <wzyboy@wzyboy.org> wrote:
> Thanks a lot for explaination, Emmanuel!
>
> Now I finally know why this is a "catch-22" situation: Disabling those
> features with OS/drvier cannot be as neat as disabling them directly
> in BIOS. And there may be chance, that disabling them at a bad timing
> may cause G3...
>
> --

Back to you.
Can you please try not to do the setpci and add this:


diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c
b/drivers/net/wireless/iwlwifi/pcie/tx.c
index 079a511..e8a52f3 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -707,6 +707,8 @@ void iwl_pcie_tx_start(struct iwl_trans *trans,
u32 scd_base_addr)
        iwl_write_direct32(trans, FH_TX_CHICKEN_BITS_REG,
                           reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN);

+        iwl_set_bits_prph(trans, 0xa04068, 0x8);
+
        /* Enable L1-Active */
        iwl_clear_bits_prph(trans, APMG_PCIDEV_STT_REG,
                            APMG_PCIDEV_STT_VAL_L1_ACT_DIS);


thanks

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

[-- Attachment #1: Type: text/plain, Size: 976 bytes --]

2013/12/25 Emmanuel Grumbach <egrumbach@gmail.com>:
> Back to you.
> Can you please try not to do the setpci and add this:


Glad to see you again :-)

I've compiled Linux 3.12.5 with your patch, removed "setpci" trick and rebooted.

During the boot of new kernel, I can see additional (error) messages
among "systemd-fsck" lines but I was not fast enough to take photos
for them before they disappeared (flushed away) by tty login
interface.

After logging in, I find that netcfg did not connect to dormitory's
Wi-Fi as before. I run "lspci -vvxxx" and find that the interface is
filled with "ff". I've attached the output of "lspci -vvxxx" and
"dmesg".




(And here is something "fun": I reverted my kernel to Arch's official
3.12.5 and rebooted, and the interface is totally missing! I mean, it
disappeared from the output of "ip link". I cannot even see it in
"lspci -vvxxx", not even "ff". The strange effect vanished after one
more reboot and a cold boot.)

-- 
wzyboy

[-- Attachment #2: patch-20131225.dmesg --]
[-- Type: application/octet-stream, Size: 54574 bytes --]

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 3.12.5-1-ARCH (wzyboy@xenien.wzyboy.im) (gcc version 4.8.2 20131219 (prerelease) (GCC) ) #1 SMP PREEMPT Wed Dec 25 17:37:45 CST 2013
[    0.000000] Command line: BOOT_IMAGE=/vmlinuz-linux root=UUID=218e8912-90d4-4016-9fdd-9850cf1558cd rw cryptdevice=/dev/sda3:crypt-sda3 quiet acpi_backlight=vendor
[    0.000000] e820: BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009cfff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009d000-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000cf24bfff] usable
[    0.000000] BIOS-e820: [mem 0x00000000cf24c000-0x00000000db97bfff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000db97c000-0x00000000db9cbfff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x00000000db9cc000-0x00000000dcd7efff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000dcd7f000-0x00000000dce7efff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x00000000dce7f000-0x00000000dcefefff] ACPI data
[    0.000000] BIOS-e820: [mem 0x00000000dceff000-0x00000000df9fffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000f8000000-0x00000000fbffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fe101000-0x00000000fe112fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed08000-0x00000000fed08fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed10000-0x00000000fed19fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000ffc00000-0x00000000ffffffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021f5fffff] usable
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] SMBIOS 2.7 present.
[    0.000000] DMI: LENOVO 20AKCTO1WW/20AKCTO1WW, BIOS GIET62WW (2.12 ) 09/25/2013
[    0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[    0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[    0.000000] No AGP bridge found
[    0.000000] e820: last_pfn = 0x21f600 max_arch_pfn = 0x400000000
[    0.000000] MTRR default type: write-back
[    0.000000] MTRR fixed ranges enabled:
[    0.000000]   00000-9FFFF write-back
[    0.000000]   A0000-BFFFF uncachable
[    0.000000]   C0000-FFFFF write-protect
[    0.000000] MTRR variable ranges enabled:
[    0.000000]   0 base 00E0000000 mask 7FE0000000 uncachable
[    0.000000]   1 base 00DE000000 mask 7FFE000000 uncachable
[    0.000000]   2 base 00DD000000 mask 7FFF000000 uncachable
[    0.000000]   3 base 00DCF00000 mask 7FFFF00000 uncachable
[    0.000000]   4 disabled
[    0.000000]   5 disabled
[    0.000000]   6 disabled
[    0.000000]   7 disabled
[    0.000000]   8 disabled
[    0.000000]   9 disabled
[    0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
[    0.000000] e820: last_pfn = 0xcf24c max_arch_pfn = 0x400000000
[    0.000000] found SMP MP-table at [mem 0x000f0100-0x000f010f] mapped at [ffff8800000f0100]
[    0.000000] Scanning 1 areas for low memory corruption
[    0.000000] Base memory trampoline at [ffff880000097000] 97000 size 24576
[    0.000000] Using GB pages for direct mapping
[    0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
[    0.000000]  [mem 0x00000000-0x000fffff] page 4k
[    0.000000] BRK [0x01b32000, 0x01b32fff] PGTABLE
[    0.000000] BRK [0x01b33000, 0x01b33fff] PGTABLE
[    0.000000] BRK [0x01b34000, 0x01b34fff] PGTABLE
[    0.000000] init_memory_mapping: [mem 0x21f400000-0x21f5fffff]
[    0.000000]  [mem 0x21f400000-0x21f5fffff] page 2M
[    0.000000] BRK [0x01b35000, 0x01b35fff] PGTABLE
[    0.000000] init_memory_mapping: [mem 0x21c000000-0x21f3fffff]
[    0.000000]  [mem 0x21c000000-0x21f3fffff] page 2M
[    0.000000] init_memory_mapping: [mem 0x200000000-0x21bffffff]
[    0.000000]  [mem 0x200000000-0x21bffffff] page 2M
[    0.000000] init_memory_mapping: [mem 0x00100000-0xcf24bfff]
[    0.000000]  [mem 0x00100000-0x001fffff] page 4k
[    0.000000]  [mem 0x00200000-0x3fffffff] page 2M
[    0.000000]  [mem 0x40000000-0xbfffffff] page 1G
[    0.000000]  [mem 0xc0000000-0xcf1fffff] page 2M
[    0.000000]  [mem 0xcf200000-0xcf24bfff] page 4k
[    0.000000] init_memory_mapping: [mem 0x100000000-0x1ffffffff]
[    0.000000]  [mem 0x100000000-0x1ffffffff] page 1G
[    0.000000] RAMDISK: [mem 0x37658000-0x37b23fff]
[    0.000000] ACPI: RSDP 00000000000f0120 00024 (v02 LENOVO)
[    0.000000] ACPI: XSDT 00000000dcefe170 000CC (v01 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI: FACP 00000000dcef9000 0010C (v05 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI Error: Gpe0Block - 32-bit FADT register is too long (32 bytes, 256 bits) to convert to GAS struct - 255 bits max, truncating (20130725/tbfadt-202)
[    0.000000] ACPI: DSDT 00000000dcee3000 1095B (v01 LENOVO TP-GI    00002120 INTL 20120711)
[    0.000000] ACPI: FACS 00000000dce4a000 00040
[    0.000000] ACPI: ASF! 00000000dcefd000 000A5 (v32 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI: DBGP 00000000dcefc000 00034 (v01 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI: ECDT 00000000dcefb000 00052 (v01 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI: HPET 00000000dcef8000 00038 (v01 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI: APIC 00000000dcef7000 00098 (v01 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI: MCFG 00000000dcef6000 0003C (v01 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI: SSDT 00000000dcef5000 00033 (v01 LENOVO TP-SSDT1 00000100 INTL 20120711)
[    0.000000] ACPI: SSDT 00000000dcef4000 0044F (v01 LENOVO TP-SSDT2 00000200 INTL 20120711)
[    0.000000] ACPI: SSDT 00000000dcee2000 009CB (v01 LENOVO SataAhci 00001000 INTL 20120711)
[    0.000000] ACPI: SSDT 00000000dcee1000 00771 (v01 LENOVO  Cpu0Ist 00003000 INTL 20120711)
[    0.000000] ACPI: SSDT 00000000dcee0000 00AD8 (v01 LENOVO    CpuPm 00003000 INTL 20120711)
[    0.000000] ACPI: SSDT 00000000dcede000 01215 (v01 LENOVO  SaSsdt  00003000 INTL 20120711)
[    0.000000] ACPI: TCPA 00000000dcedd000 00032 (v02    PTL   LENOVO 06040000 LNVO 00000001)
[    0.000000] ACPI: UEFI 00000000dcedc000 00042 (v01 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI: POAT 00000000dcdb4000 00055 (v03 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI: BATB 00000000dcedb000 00046 (v01 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI: FPDT 00000000dceda000 00064 (v01 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI: UEFI 00000000dced9000 002E2 (v01 LENOVO TP-GI    00002120 PTEC 00000002)
[    0.000000] ACPI: SSDT 00000000dced8000 0047F (v01 LENOVO IsctTabl 00001000 INTL 20120711)
[    0.000000] ACPI: SSDT 00000000dced7000 000D0 (v01 LENOVO  IffsAsl 00003000 INTL 20120711)
[    0.000000] ACPI: Local APIC address 0xfee00000
[    0.000000] No NUMA configuration found
[    0.000000] Faking a node at [mem 0x0000000000000000-0x000000021f5fffff]
[    0.000000] Initmem setup node 0 [mem 0x00000000-0x21f5fffff]
[    0.000000]   NODE_DATA [mem 0x21f5f9000-0x21f5fdfff]
[    0.000000]  [ffffea0000000000-ffffea00087fffff] PMD -> [ffff880217000000-ffff88021ebfffff] on node 0
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x00001000-0x00ffffff]
[    0.000000]   DMA32    [mem 0x01000000-0xffffffff]
[    0.000000]   Normal   [mem 0x100000000-0x21f5fffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x00001000-0x0009cfff]
[    0.000000]   node   0: [mem 0x00100000-0xcf24bfff]
[    0.000000]   node   0: [mem 0x100000000-0x21f5fffff]
[    0.000000] On node 0 totalpages: 2025448
[    0.000000]   DMA zone: 64 pages used for memmap
[    0.000000]   DMA zone: 21 pages reserved
[    0.000000]   DMA zone: 3996 pages, LIFO batch:0
[    0.000000]   DMA32 zone: 13194 pages used for memmap
[    0.000000]   DMA32 zone: 844364 pages, LIFO batch:31
[    0.000000]   Normal zone: 18392 pages used for memmap
[    0.000000]   Normal zone: 1177088 pages, LIFO batch:31
[    0.000000] ACPI: PM-Timer IO Port: 0x1808
[    0.000000] ACPI: Local APIC address 0xfee00000
[    0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x02] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x00] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x00] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x00] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x08] lapic_id[0x00] disabled)
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[    0.000000] ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
[    0.000000] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-39
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.000000] ACPI: IRQ0 used by override.
[    0.000000] ACPI: IRQ2 used by override.
[    0.000000] ACPI: IRQ9 used by override.
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x8086a301 base: 0xfed00000
[    0.000000] smpboot: Allowing 8 CPUs, 4 hotplug CPUs
[    0.000000] nr_irqs_gsi: 56
[    0.000000] PM: Registered nosave memory: [mem 0x0009d000-0x0009ffff]
[    0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000dffff]
[    0.000000] PM: Registered nosave memory: [mem 0x000e0000-0x000fffff]
[    0.000000] PM: Registered nosave memory: [mem 0xcf24c000-0xdb97bfff]
[    0.000000] PM: Registered nosave memory: [mem 0xdb97c000-0xdb9cbfff]
[    0.000000] PM: Registered nosave memory: [mem 0xdb9cc000-0xdcd7efff]
[    0.000000] PM: Registered nosave memory: [mem 0xdcd7f000-0xdce7efff]
[    0.000000] PM: Registered nosave memory: [mem 0xdce7f000-0xdcefefff]
[    0.000000] PM: Registered nosave memory: [mem 0xdceff000-0xdf9fffff]
[    0.000000] PM: Registered nosave memory: [mem 0xdfa00000-0xf7ffffff]
[    0.000000] PM: Registered nosave memory: [mem 0xf8000000-0xfbffffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfc000000-0xfe100fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfe101000-0xfe112fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfe113000-0xfebfffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfec00000-0xfec00fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfec01000-0xfed07fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed08000-0xfed08fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed09000-0xfed0ffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed10000-0xfed19fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed1a000-0xfed1bfff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed1c000-0xfed1ffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed20000-0xfedfffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfee00000-0xfee00fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfee01000-0xffbfffff]
[    0.000000] PM: Registered nosave memory: [mem 0xffc00000-0xffffffff]
[    0.000000] e820: [mem 0xdfa00000-0xf7ffffff] available for PCI devices
[    0.000000] Booting paravirtualized kernel on bare hardware
[    0.000000] setup_percpu: NR_CPUS:128 nr_cpumask_bits:128 nr_cpu_ids:8 nr_node_ids:1
[    0.000000] PERCPU: Embedded 29 pages/cpu @ffff88021f200000 s86464 r8192 d24128 u262144
[    0.000000] pcpu-alloc: s86464 r8192 d24128 u262144 alloc=1*2097152
[    0.000000] pcpu-alloc: [0] 0 1 2 3 4 5 6 7 
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 1993777
[    0.000000] Policy zone: Normal
[    0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-linux root=UUID=218e8912-90d4-4016-9fdd-9850cf1558cd rw cryptdevice=/dev/sda3:crypt-sda3 quiet acpi_backlight=vendor
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] xsave: enabled xstate_bv 0x7, cntxt size 0x340
[    0.000000] Checking aperture...
[    0.000000] No AGP bridge found
[    0.000000] Calgary: detecting Calgary via BIOS EBDA area
[    0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing!
[    0.000000] Memory: 7891072K/8101792K available (5118K kernel code, 807K rwdata, 1708K rodata, 1144K init, 1288K bss, 210720K reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000] 	RCU dyntick-idle grace-period acceleration is enabled.
[    0.000000] 	Dump stacks of tasks blocking RCU-preempt GP.
[    0.000000] 	RCU restricting CPUs from NR_CPUS=128 to nr_cpu_ids=8.
[    0.000000] NR_IRQS:8448 nr_irqs:1016 16
[    0.000000] Console: colour dummy device 80x25
[    0.000000] console [tty0] enabled
[    0.000000] allocated 32505856 bytes of page_cgroup
[    0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[    0.000000] hpet clockevent registered
[    0.000000] tsc: Fast TSC calibration using PIT
[    0.003333] tsc: Detected 2394.541 MHz processor
[    0.000003] Calibrating delay loop (skipped), value calculated using timer frequency.. 4790.62 BogoMIPS (lpj=7981803)
[    0.000006] pid_max: default: 32768 minimum: 301
[    0.000038] Security Framework initialized
[    0.000046] AppArmor: AppArmor disabled by boot time parameter
[    0.000048] Yama: becoming mindful.
[    0.000705] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.002745] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.003593] Mount-cache hash table entries: 256
[    0.003805] Initializing cgroup subsys memory
[    0.003816] Initializing cgroup subsys devices
[    0.003818] Initializing cgroup subsys freezer
[    0.003820] Initializing cgroup subsys net_cls
[    0.003822] Initializing cgroup subsys blkio
[    0.003848] CPU: Physical Processor ID: 0
[    0.003849] CPU: Processor Core ID: 0
[    0.003854] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)
[    0.005041] mce: CPU supports 7 MCE banks
[    0.005056] CPU0: Thermal monitoring enabled (TM1)
[    0.005069] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0
tlb_flushall_shift: 6
[    0.005187] Freeing SMP alternatives memory: 20K (ffffffff819e9000 - ffffffff819ee000)
[    0.006192] ACPI: Core revision 20130725
[    0.018096] ACPI: All ACPI Tables successfully acquired
[    0.020354] ftrace: allocating 20316 entries in 80 pages
[    0.031574] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.064608] smpboot: CPU0: Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz (fam: 06, model: 45, stepping: 01)
[    0.064616] TSC deadline timer enabled
[    0.064625] Performance Events: PEBS fmt2+, 16-deep LBR, Haswell events, full-width counters, Intel PMU driver.
[    0.064632] ... version:                3
[    0.064634] ... bit width:              48
[    0.064635] ... generic registers:      4
[    0.064636] ... value mask:             0000ffffffffffff
[    0.064637] ... max period:             0000ffffffffffff
[    0.064638] ... fixed-purpose events:   3
[    0.064639] ... event mask:             000000070000000f
[    0.102672] NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter.
[    0.088093] smpboot: Booting Node   0, Processors  #   1 #   2 #   3 OK
[    0.144946] Brought up 4 CPUs
[    0.144950] smpboot: Total of 4 processors activated (19163.50 BogoMIPS)
[    0.150649] devtmpfs: initialized
[    0.153662] PM: Registering ACPI NVS region [mem 0xdb97c000-0xdb9cbfff] (327680 bytes)
[    0.153670] PM: Registering ACPI NVS region [mem 0xdcd7f000-0xdce7efff] (1048576 bytes)
[    0.154566] RTC time:  9:47:44, date: 12/25/13
[    0.154612] NET: Registered protocol family 16
[    0.154726] cpuidle: using governor ladder
[    0.154728] cpuidle: using governor menu
[    0.154764] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
[    0.154766] ACPI: bus type PCI registered
[    0.154768] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    0.154933] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
[    0.154935] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
[    0.161024] PCI: Using configuration type 1 for base access
[    0.161760] bio: create slab <bio-0> at 0
[    0.161881] ACPI: Added _OSI(Module Device)
[    0.161883] ACPI: Added _OSI(Processor Device)
[    0.161885] ACPI: Added _OSI(3.0 _SCP Extensions)
[    0.161886] ACPI: Added _OSI(Processor Aggregator Device)
[    0.164162] ACPI: EC: EC description table is found, configuring boot EC
[    0.170534] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[    0.207339] ACPI: SSDT 00000000dcd17918 00436 (v01  PmRef  Cpu0Cst 00003001 INTL 20120711)
[    0.207908] ACPI: Dynamic OEM Table Load:
[    0.207910] ACPI: SSDT           (null) 00436 (v01  PmRef  Cpu0Cst 00003001 INTL 20120711)
[    0.224156] ACPI: SSDT 00000000dcd6e618 005AA (v01  PmRef    ApIst 00003000 INTL 20120711)
[    0.224818] ACPI: Dynamic OEM Table Load:
[    0.224820] ACPI: SSDT           (null) 005AA (v01  PmRef    ApIst 00003000 INTL 20120711)
[    0.237356] ACPI: SSDT 00000000dcd6fc18 00119 (v01  PmRef    ApCst 00003000 INTL 20120711)
[    0.237920] ACPI: Dynamic OEM Table Load:
[    0.237922] ACPI: SSDT           (null) 00119 (v01  PmRef    ApCst 00003000 INTL 20120711)
[    0.251326] ACPI: Interpreter enabled
[    0.251335] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] (20130725/hwxface-571)
[    0.251342] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20130725/hwxface-571)
[    0.251359] ACPI: (supports S0 S3 S4 S5)
[    0.251361] ACPI: Using IOAPIC for interrupt routing
[    0.251392] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[    0.251554] ACPI: No dock devices found.
[    0.267835] ACPI: Power Resource [PUBS] (on)
[    0.333014] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11)
[    0.333103] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 *9 10 11)
[    0.333188] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 9 *10 11)
[    0.333272] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 *6 7 9 10 11)
[    0.333355] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 9 10 *11)
[    0.333421] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 9 10 11) *0, disabled.
[    0.333505] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 9 *10 11)
[    0.333588] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 *7 9 10 11)
[    0.333635] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-3f])
[    0.333757] acpi PNP0A08:00: Requesting ACPI _OSC control (0x1d)
[    0.333868] acpi PNP0A08:00: ACPI _OSC request failed (AE_SUPPORT), returned control mask: 0x0d
[    0.333869] acpi PNP0A08:00: ACPI _OSC control for PCIe not granted, disabling ASPM
[    0.334033] PCI host bridge to bus 0000:00
[    0.334036] pci_bus 0000:00: root bus resource [bus 00-3f]
[    0.334039] pci_bus 0000:00: root bus resource [io  0x0000-0x0cf7]
[    0.334040] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff]
[    0.334042] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff]
[    0.334044] pci_bus 0000:00: root bus resource [mem 0xdfa00000-0xfebfffff]
[    0.334046] pci_bus 0000:00: root bus resource [mem 0xfed40000-0xfed4bfff]
[    0.334055] pci 0000:00:00.0: [8086:0a04] type 00 class 0x060000
[    0.334154] pci 0000:00:02.0: [8086:0a16] type 00 class 0x030000
[    0.334170] pci 0000:00:02.0: reg 0x10: [mem 0xf0000000-0xf03fffff 64bit]
[    0.334178] pci 0000:00:02.0: reg 0x18: [mem 0xe0000000-0xefffffff 64bit pref]
[    0.334184] pci 0000:00:02.0: reg 0x20: [io  0x3000-0x303f]
[    0.334270] pci 0000:00:03.0: [8086:0a0c] type 00 class 0x040300
[    0.334279] pci 0000:00:03.0: reg 0x10: [mem 0xf0630000-0xf0633fff 64bit]
[    0.334389] pci 0000:00:14.0: [8086:9c31] type 00 class 0x0c0330
[    0.334408] pci 0000:00:14.0: reg 0x10: [mem 0xf0620000-0xf062ffff 64bit]
[    0.334469] pci 0000:00:14.0: PME# supported from D3hot D3cold
[    0.334504] pci 0000:00:14.0: System wakeup disabled by ACPI
[    0.334541] pci 0000:00:16.0: [8086:9c3a] type 00 class 0x078000
[    0.334563] pci 0000:00:16.0: reg 0x10: [mem 0xf0639000-0xf063901f 64bit]
[    0.334637] pci 0000:00:16.0: PME# supported from D0 D3hot D3cold
[    0.334709] pci 0000:00:19.0: [8086:1559] type 00 class 0x020000
[    0.334726] pci 0000:00:19.0: reg 0x10: [mem 0xf0600000-0xf061ffff]
[    0.334735] pci 0000:00:19.0: reg 0x14: [mem 0xf063e000-0xf063efff]
[    0.334743] pci 0000:00:19.0: reg 0x18: [io  0x3080-0x309f]
[    0.334804] pci 0000:00:19.0: PME# supported from D0 D3hot D3cold
[    0.334838] pci 0000:00:19.0: System wakeup disabled by ACPI
[    0.334877] pci 0000:00:1b.0: [8086:9c20] type 00 class 0x040300
[    0.334891] pci 0000:00:1b.0: reg 0x10: [mem 0xf0634000-0xf0637fff 64bit]
[    0.334956] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
[    0.334997] pci 0000:00:1b.0: System wakeup disabled by ACPI
[    0.335030] pci 0000:00:1c.0: [8086:9c1a] type 01 class 0x060400
[    0.335097] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
[    0.335164] pci 0000:00:1c.1: [8086:9c14] type 01 class 0x060400
[    0.335236] pci 0000:00:1c.1: PME# supported from D0 D3hot D3cold
[    0.335274] pci 0000:00:1c.1: System wakeup disabled by ACPI
[    0.335318] pci 0000:00:1d.0: [8086:9c26] type 00 class 0x0c0320
[    0.335339] pci 0000:00:1d.0: reg 0x10: [mem 0xf063d000-0xf063d3ff]
[    0.335433] pci 0000:00:1d.0: PME# supported from D0 D3hot D3cold
[    0.335470] pci 0000:00:1d.0: System wakeup disabled by ACPI
[    0.335508] pci 0000:00:1f.0: [8086:9c43] type 00 class 0x060100
[    0.335680] pci 0000:00:1f.2: [8086:9c03] type 00 class 0x010601
[    0.335696] pci 0000:00:1f.2: reg 0x10: [io  0x30a8-0x30af]
[    0.335704] pci 0000:00:1f.2: reg 0x14: [io  0x30b4-0x30b7]
[    0.335711] pci 0000:00:1f.2: reg 0x18: [io  0x30a0-0x30a7]
[    0.335719] pci 0000:00:1f.2: reg 0x1c: [io  0x30b0-0x30b3]
[    0.335726] pci 0000:00:1f.2: reg 0x20: [io  0x3060-0x307f]
[    0.335734] pci 0000:00:1f.2: reg 0x24: [mem 0xf063c000-0xf063c7ff]
[    0.335771] pci 0000:00:1f.2: PME# supported from D3hot
[    0.335830] pci 0000:00:1f.3: [8086:9c22] type 00 class 0x0c0500
[    0.335844] pci 0000:00:1f.3: reg 0x10: [mem 0xf0638000-0xf06380ff 64bit]
[    0.335865] pci 0000:00:1f.3: reg 0x20: [io  0xefa0-0xefbf]
[    0.336008] pci 0000:02:00.0: [10ec:5227] type 00 class 0xff0000
[    0.336033] pci 0000:02:00.0: reg 0x10: [mem 0xf0500000-0xf0500fff]
[    0.336161] pci 0000:02:00.0: supports D1 D2
[    0.336163] pci 0000:02:00.0: PME# supported from D1 D2 D3hot D3cold
[    0.340851] pci 0000:00:1c.0: PCI bridge to [bus 02]
[    0.340857] pci 0000:00:1c.0:   bridge window [mem 0xf0500000-0xf05fffff]
[    0.341085] pci 0000:03:00.0: [8086:08b2] type 00 class 0x028000
[    0.341168] pci 0000:03:00.0: reg 0x10: [mem 0xf0400000-0xf0401fff 64bit]
[    0.341432] pci 0000:03:00.0: PME# supported from D0 D3hot D3cold
[    0.347664] pci 0000:00:1c.1: PCI bridge to [bus 03]
[    0.347670] pci 0000:00:1c.1:   bridge window [mem 0xf0400000-0xf04fffff]
[    0.348949] ACPI: Enabled 4 GPEs in block 00 to 7F
[    0.348963] ACPI: \_SB_.PCI0: notify handler is installed
[    0.349018] Found 1 acpi root devices
[    0.349091] ACPI: EC: GPE = 0x25, I/O: command/status = 0x66, data = 0x62
[    0.349175] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[    0.349179] vgaarb: loaded
[    0.349180] vgaarb: bridge control possible 0000:00:02.0
[    0.349216] PCI: Using ACPI for IRQ routing
[    0.350634] PCI: pci_cache_line_size set to 64 bytes
[    0.350965] e820: reserve RAM buffer [mem 0x0009d000-0x0009ffff]
[    0.350967] e820: reserve RAM buffer [mem 0xcf24c000-0xcfffffff]
[    0.350969] e820: reserve RAM buffer [mem 0x21f600000-0x21fffffff]
[    0.351058] NetLabel: Initializing
[    0.351060] NetLabel:  domain hash size = 128
[    0.351061] NetLabel:  protocols = UNLABELED CIPSOv4
[    0.351073] NetLabel:  unlabeled traffic allowed by default
[    0.351095] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0
[    0.351101] hpet0: 8 comparators, 64-bit 14.318180 MHz counter
[    0.353124] Switched to clocksource hpet
[    0.357775] pnp: PnP ACPI init
[    0.357789] ACPI: bus type PNP registered
[    0.358205] system 00:00: [mem 0x00000000-0x0009ffff] could not be reserved
[    0.358208] system 00:00: [mem 0x000c0000-0x000c3fff] could not be reserved
[    0.358210] system 00:00: [mem 0x000c4000-0x000c7fff] could not be reserved
[    0.358212] system 00:00: [mem 0x000c8000-0x000cbfff] could not be reserved
[    0.358214] system 00:00: [mem 0x000cc000-0x000cffff] could not be reserved
[    0.358217] system 00:00: [mem 0x000d0000-0x000d3fff] has been reserved
[    0.358219] system 00:00: [mem 0x000d4000-0x000d7fff] has been reserved
[    0.358221] system 00:00: [mem 0x000d8000-0x000dbfff] has been reserved
[    0.358223] system 00:00: [mem 0x000dc000-0x000dffff] has been reserved
[    0.358225] system 00:00: [mem 0x000e0000-0x000e3fff] could not be reserved
[    0.358227] system 00:00: [mem 0x000e4000-0x000e7fff] could not be reserved
[    0.358229] system 00:00: [mem 0x000e8000-0x000ebfff] could not be reserved
[    0.358231] system 00:00: [mem 0x000ec000-0x000effff] could not be reserved
[    0.358233] system 00:00: [mem 0x000f0000-0x000fffff] could not be reserved
[    0.358235] system 00:00: [mem 0x00100000-0xdf9fffff] could not be reserved
[    0.358237] system 00:00: [mem 0xfec00000-0xfed3ffff] could not be reserved
[    0.358240] system 00:00: [mem 0xfed4c000-0xffffffff] could not be reserved
[    0.358243] system 00:00: Plug and Play ACPI device, IDs PNP0c01 (active)
[    0.358356] system 00:01: [io  0x1800-0x189f] could not be reserved
[    0.358358] system 00:01: [io  0x0800-0x087f] has been reserved
[    0.358361] system 00:01: [io  0x0880-0x08ff] has been reserved
[    0.358363] system 00:01: [io  0x0900-0x097f] has been reserved
[    0.358365] system 00:01: [io  0x0980-0x09ff] has been reserved
[    0.358367] system 00:01: [io  0x0a00-0x0a7f] has been reserved
[    0.358369] system 00:01: [io  0x0a80-0x0aff] has been reserved
[    0.358371] system 00:01: [io  0x0b00-0x0b7f] has been reserved
[    0.358372] system 00:01: [io  0x0b80-0x0bff] has been reserved
[    0.358375] system 00:01: [io  0x15e0-0x15ef] has been reserved
[    0.358377] system 00:01: [io  0x1600-0x167f] has been reserved
[    0.358379] system 00:01: [io  0x1640-0x165f] has been reserved
[    0.358381] system 00:01: [mem 0xf8000000-0xfbffffff] has been reserved
[    0.358383] system 00:01: [mem 0x00000000-0x00000fff] could not be reserved
[    0.358386] system 00:01: [mem 0xfed1c000-0xfed1ffff] has been reserved
[    0.358388] system 00:01: [mem 0xfed10000-0xfed13fff] has been reserved
[    0.358390] system 00:01: [mem 0xfed18000-0xfed18fff] has been reserved
[    0.358392] system 00:01: [mem 0xfed19000-0xfed19fff] has been reserved
[    0.358394] system 00:01: [mem 0xfed45000-0xfed4bfff] has been reserved
[    0.358397] system 00:01: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.358462] pnp 00:02: Plug and Play ACPI device, IDs PNP0103 (active)
[    0.358471] pnp 00:03: [dma 4]
[    0.358487] pnp 00:03: Plug and Play ACPI device, IDs PNP0200 (active)
[    0.358509] pnp 00:04: Plug and Play ACPI device, IDs PNP0800 (active)
[    0.358539] pnp 00:05: Plug and Play ACPI device, IDs PNP0c04 (active)
[    0.358565] pnp 00:06: Plug and Play ACPI device, IDs PNP0b00 (active)
[    0.358592] pnp 00:07: Plug and Play ACPI device, IDs LEN0071 PNP0303 (active)
[    0.358618] pnp 00:08: Plug and Play ACPI device, IDs LEN0035 PNP0f13 (active)
[    0.358662] pnp 00:09: Plug and Play ACPI device, IDs SMO1200 PNP0c31 (active)
[    0.359023] pnp: PnP ACPI: found 10 devices
[    0.359024] ACPI: bus type PNP unregistered
[    0.365335] pci 0000:00:1c.0: PCI bridge to [bus 02]
[    0.365341] pci 0000:00:1c.0:   bridge window [mem 0xf0500000-0xf05fffff]
[    0.365349] pci 0000:00:1c.1: PCI bridge to [bus 03]
[    0.365354] pci 0000:00:1c.1:   bridge window [mem 0xf0400000-0xf04fffff]
[    0.365363] pci_bus 0000:00: resource 4 [io  0x0000-0x0cf7]
[    0.365365] pci_bus 0000:00: resource 5 [io  0x0d00-0xffff]
[    0.365367] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff]
[    0.365368] pci_bus 0000:00: resource 7 [mem 0xdfa00000-0xfebfffff]
[    0.365370] pci_bus 0000:00: resource 8 [mem 0xfed40000-0xfed4bfff]
[    0.365372] pci_bus 0000:02: resource 1 [mem 0xf0500000-0xf05fffff]
[    0.365375] pci_bus 0000:03: resource 1 [mem 0xf0400000-0xf04fffff]
[    0.365410] NET: Registered protocol family 2
[    0.365627] TCP established hash table entries: 65536 (order: 8, 1048576 bytes)
[    0.365875] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    0.366050] TCP: Hash tables configured (established 65536 bind 65536)
[    0.366068] TCP: reno registered
[    0.366081] UDP hash table entries: 4096 (order: 5, 131072 bytes)
[    0.366114] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes)
[    0.366191] NET: Registered protocol family 1
[    0.366203] pci 0000:00:02.0: Boot video device
[    0.366673] PCI: CLS 64 bytes, default 64
[    0.366709] Unpacking initramfs...
[    0.476158] Freeing initrd memory: 4912K (ffff880037658000 - ffff880037b24000)
[    0.476163] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[    0.476167] software IO TLB [mem 0xcb24c000-0xcf24c000] (64MB) mapped at [ffff8800cb24c000-ffff8800cf24bfff]
[    0.476351] Scanning for low memory corruption every 60 seconds
[    0.476663] audit: initializing netlink socket (disabled)
[    0.476673] type=2000 audit(1387964864.469:1): initialized
[    0.492028] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    0.493424] zbud: loaded
[    0.493613] VFS: Disk quotas dquot_6.5.2
[    0.493655] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.493813] msgmni has been set to 15421
[    0.494069] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[    0.494105] io scheduler noop registered
[    0.494108] io scheduler deadline registered
[    0.494139] io scheduler cfq registered (default)
[    0.494428] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[    0.494442] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
[    0.494487] vesafb: mode is 1366x768x32, linelength=5504, pages=0
[    0.494488] vesafb: scrolling: redraw
[    0.494490] vesafb: Truecolor: size=8:8:8:8, shift=24:16:8:0
[    0.494920] vesafb: framebuffer at 0xe0000000, mapped to 0xffffc90004f00000, using 4160k, total 4160k
[    0.610123] Console: switching to colour frame buffer device 170x48
[    0.724946] fb0: VESA VGA frame buffer device
[    0.724962] intel_idle: MWAIT substates: 0x11142120
[    0.724964] intel_idle: v0.4 model 0x45
[    0.724965] intel_idle: lapic_timer_reliable_states 0xffffffff
[    0.725154] GHES: HEST is not enabled!
[    0.725202] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    0.725600] Linux agpgart interface v0.103
[    0.725671] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
[    0.727608] serio: i8042 KBD port at 0x60,0x64 irq 1
[    0.727635] serio: i8042 AUX port at 0x60,0x64 irq 12
[    0.727720] mousedev: PS/2 mouse device common for all mice
[    0.727767] rtc_cmos 00:06: RTC can wake from S4
[    0.727905] rtc_cmos 00:06: rtc core: registered rtc_cmos as rtc0
[    0.727932] rtc_cmos 00:06: alarms up to one month, y3k, 114 bytes nvram, hpet irqs
[    0.727941] Intel P-state driver initializing.
[    0.727951] Intel pstate controlling: cpu 0
[    0.727975] Intel pstate controlling: cpu 1
[    0.727988] Intel pstate controlling: cpu 2
[    0.727998] Intel pstate controlling: cpu 3
[    0.728084] drop_monitor: Initializing network drop monitor service
[    0.728154] TCP: cubic registered
[    0.728240] NET: Registered protocol family 10
[    0.728397] NET: Registered protocol family 17
[    0.728404] Key type dns_resolver registered
[    0.728673] registered taskstats version 1
[    0.729068] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input0
[    0.729489]   Magic number: 9:106:779
[    0.729565] rtc_cmos 00:06: setting system clock to 2013-12-25 09:47:45 UTC (1387964865)
[    0.729603] PM: Hibernation image not present or could not be loaded.
[    0.730252] Freeing unused kernel memory: 1144K (ffffffff818cb000 - ffffffff819e9000)
[    0.730253] Write protecting the kernel read-only data: 8192k
[    0.732127] Freeing unused kernel memory: 1016K (ffff880001502000 - ffff880001600000)
[    0.732737] Freeing unused kernel memory: 340K (ffff8800017ab000 - ffff880001800000)
[    0.739764] systemd-udevd[58]: starting version 208
[    0.742135] [drm] Initialized drm 1.1.0 20060810
[    0.742837] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input2
[    0.742981] ACPI: Lid Switch [LID]
[    0.743092] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input3
[    0.743107] ACPI: Power Button [PWRF]
[    0.746131] [drm] Memory usable by graphics device = 2048M
[    0.746134] checking generic (e0000000 410000) vs hw (e0000000 10000000)
[    0.746135] fb: conflicting fb hw usage inteldrmfb vs VESA VGA - removing generic driver
[    0.746145] Console: switching to colour dummy device 80x25
[    0.746211] i915 0000:00:02.0: setting latency timer to 64
[    0.763498] i915 0000:00:02.0: irq 56 for MSI/MSI-X
[    0.763513] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[    0.763514] [drm] Driver supports precise vblank timestamp query.
[    0.763568] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    0.900237] [drm] GMBUS [i915 gmbus dpb] timed out, falling back to bit banging on pin 5
[    0.966956] [drm] GMBUS [i915 gmbus dpc] timed out, falling back to bit banging on pin 4
[    0.981103] fbcon: inteldrmfb (fb0) is primary device
[    1.477443] tsc: Refined TSC clocksource calibration: 2394.457 MHz
[    2.354922] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
[    2.478345] Switched to clocksource tsc
[    2.721723] Console: switching to colour frame buffer device 170x48
[    2.725420] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[    2.725422] i915 0000:00:02.0: registered panic notifier
[    2.745530] ACPI: Video Device [VID] (multi-head: yes  rom: no  post: no)
[    2.745582] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input27
[    2.745613] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
[    2.759379] ACPI: bus type USB registered
[    2.759397] usbcore: registered new interface driver usbfs
[    2.759404] usbcore: registered new interface driver hub
[    2.759454] usbcore: registered new device driver usb
[    2.760217] xhci_hcd 0000:00:14.0: setting latency timer to 64
[    2.760221] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    2.760228] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1
[    2.760300] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported
[    2.760321] xhci_hcd 0000:00:14.0: irq 57 for MSI/MSI-X
[    2.760735] hub 1-0:1.0: USB hub found
[    2.760745] hub 1-0:1.0: 9 ports detected
[    2.762504] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    2.762508] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2
[    2.762686] hub 2-0:1.0: USB hub found
[    2.762697] hub 2-0:1.0: 4 ports detected
[    2.765508] SCSI subsystem initialized
[    2.765636] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    2.765749] pcieport 0000:00:1c.0: driver skip pci_set_master, fix it!
[    2.765874] rtsx_pci 0000:02:00.0: irq 58 for MSI/MSI-X
[    2.765893] ehci-pci: EHCI PCI platform driver
[    2.765895] rtsx_pci 0000:02:00.0: rtsx_pci_acquire_irq: pcr->msi_en = 1, pci->irq = 58
[    2.766974] libata version 3.00 loaded.
[    2.775373] ehci-pci 0000:00:1d.0: setting latency timer to 64
[    2.775380] ehci-pci 0000:00:1d.0: EHCI Host Controller
[    2.775386] ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 3
[    2.775397] ehci-pci 0000:00:1d.0: debug port 2
[    2.779301] ehci-pci 0000:00:1d.0: cache line size of 64 is not supported
[    2.779315] ehci-pci 0000:00:1d.0: irq 23, io mem 0xf063d000
[    2.788440] ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00
[    2.788609] hub 3-0:1.0: USB hub found
[    2.788615] hub 3-0:1.0: 3 ports detected
[    2.788757] ahci 0000:00:1f.2: version 3.0
[    2.788883] ahci 0000:00:1f.2: irq 59 for MSI/MSI-X
[    2.801807] ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 3 ports 6 Gbps 0x1 impl SATA mode
[    2.801811] ahci 0000:00:1f.2: flags: 64bit ncq pm led clo only pio slum part deso sadm sds apst 
[    2.801815] ahci 0000:00:1f.2: setting latency timer to 64
[    2.802937] scsi0 : ahci
[    2.803010] scsi1 : ahci
[    2.803074] scsi2 : ahci
[    2.803112] ata1: SATA max UDMA/133 abar m2048@0xf063c000 port 0xf063c100 irq 59
[    2.803114] ata2: DUMMY
[    2.803115] ata3: DUMMY
[    3.122128] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[    3.122158] usb 1-2: new low-speed USB device number 2 using xhci_hcd
[    3.123176] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[    3.123181] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[    3.124190] ata1.00: ATA-8: HGST HTS725050A7E630, GH2ZB550, max UDMA/133
[    3.124195] ata1.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
[    3.125376] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[    3.125382] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[    3.126394] ata1.00: configured for UDMA/133
[    3.126600] scsi 0:0:0:0: Direct-Access     ATA      HGST HTS725050A7 GH2Z PQ: 0 ANSI: 5
[    3.128475] sd 0:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/465 GiB)
[    3.128478] sd 0:0:0:0: [sda] 4096-byte physical blocks
[    3.128539] sd 0:0:0:0: [sda] Write Protect is off
[    3.128543] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[    3.128570] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[    3.140736] usb 1-2: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
[    3.142182] hidraw: raw HID events driver (C) Jiri Kosina
[    3.145763] usbcore: registered new interface driver usbhid
[    3.145767] usbhid: USB HID core driver
[    3.146343] input: Lenovo Precision USB Mouse as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/input/input31
[    3.146460] hid-generic 0003:17EF:6050.0001: input,hidraw0: USB HID v1.11 Mouse [Lenovo Precision USB Mouse] on usb-0000:00:14.0-2/input0
[    3.191489]  sda: sda1 sda2 sda3 sda4 sda5
[    3.191979] sd 0:0:0:0: [sda] Attached SCSI disk
[    3.298894] usb 1-6: new full-speed USB device number 3 using xhci_hcd
[    3.472401] usb 1-8: new high-speed USB device number 4 using xhci_hcd
[    3.525018] device-mapper: uevent: version 1.0.3
[    3.525098] device-mapper: ioctl: 4.26.0-ioctl (2013-08-15) initialised: dm-devel@redhat.com
[    3.732667] usb 3-1: new high-speed USB device number 2 using ehci-pci
[    3.856812] hub 3-1:1.0: USB hub found
[    3.856854] hub 3-1:1.0: 8 ports detected
[    9.004530] bio: create slab <bio-1> at 1
[    9.192128] bio: create slab <bio-1> at 1
[    9.371174] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: (null)
[    9.806493] systemd[1]: systemd 208 running in system mode. (+PAM -LIBWRAP -AUDIT -SELINUX -IMA -SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ)
[    9.817129] systemd[1]: Set hostname to <xenien.wzyboy.im>.
[   10.421679] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory.
[   10.421937] systemd[1]: Starting Forward Password Requests to Wall Directory Watch.
[   10.421992] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[   10.422004] systemd[1]: Starting Remote File Systems.
[   10.422014] systemd[1]: Reached target Remote File Systems.
[   10.422022] systemd[1]: Starting Device-mapper event daemon FIFOs.
[   10.422047] systemd[1]: Listening on Device-mapper event daemon FIFOs.
[   10.422053] systemd[1]: Starting Delayed Shutdown Socket.
[   10.422073] systemd[1]: Listening on Delayed Shutdown Socket.
[   10.422080] systemd[1]: Starting /dev/initctl Compatibility Named Pipe.
[   10.422094] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[   10.422100] systemd[1]: Starting LVM2 metadata daemon socket.
[   10.422128] systemd[1]: Listening on LVM2 metadata daemon socket.
[   10.422136] systemd[1]: Expecting device dev-sda4.device...
[   10.422142] systemd[1]: Expecting device dev-mapper-crypt\x2dsda4.device...
[   10.422165] systemd[1]: Starting Arbitrary Executable File Formats File System Automount Point.
[   10.422244] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[   10.422253] systemd[1]: Starting Dispatch Password Requests to Console Directory Watch.
[   10.422277] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[   10.422283] systemd[1]: Starting Paths.
[   10.422289] systemd[1]: Reached target Paths.
[   10.422298] systemd[1]: Starting udev Kernel Socket.
[   10.422313] systemd[1]: Listening on udev Kernel Socket.
[   10.422321] systemd[1]: Starting udev Control Socket.
[   10.422335] systemd[1]: Listening on udev Control Socket.
[   10.422342] systemd[1]: Starting Journal Socket.
[   10.422373] systemd[1]: Listening on Journal Socket.
[   10.422384] systemd[1]: Starting udev Coldplug all Devices...
[   10.428685] systemd[1]: Starting Apply Kernel Variables...
[   10.510990] systemd[1]: Starting Create list of required static device nodes for the current kernel...
[   10.511624] systemd[1]: Started Set Up Additional Binary Formats.
[   10.511660] systemd[1]: Mounting Debug File System...
[   10.511966] systemd[1]: Mounting Huge Pages File System...
[   10.512237] systemd[1]: Starting Setup Virtual Console...
[   10.512595] systemd[1]: Starting Journal Service...
[   10.512961] systemd[1]: Started Journal Service.
[   10.787158] systemd-journald[179]: Vacuuming done, freed 0 bytes
[   10.966476] EXT4-fs (dm-0): re-mounted. Opts: data=ordered
[   11.043499] FS-Cache: Loaded
[   11.055586] RPC: Registered named UNIX socket transport module.
[   11.055589] RPC: Registered udp transport module.
[   11.055590] RPC: Registered tcp transport module.
[   11.055590] RPC: Registered tcp NFSv4.1 backchannel transport module.
[   11.069652] FS-Cache: Netfs 'nfs' registered for caching
[   11.108567] vboxdrv: Found 4 processor cores.
[   11.108775] vboxdrv: fAsync=0 offMin=0x23d offMax=0xbb6b
[   11.108813] vboxdrv: TSC mode is 'synchronous', kernel timer mode is 'normal'.
[   11.108814] vboxdrv: Successfully loaded version 4.3.6_OSE (interface 0x001a0007).
[   11.413344] systemd-udevd[212]: starting version 208
[   11.899294] pps_core: LinuxPPS API ver. 1 registered
[   11.899298] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[   11.899871] PTP clock support registered
[   11.966741] ACPI: Requesting acpi_cpufreq
[   11.987808] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[   11.988162] ACPI Warning: 0x0000000000001828-0x000000000000182f SystemIO conflicts with Region \_SB_.PCI0.LPC_.PMIO 1 (20130725/utaddress-251)
[   11.988171] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[   11.988177] ACPI Warning: 0x0000000000000830-0x000000000000083f SystemIO conflicts with Region \_SB_.PCI0.LPC_.LPIO 1 (20130725/utaddress-251)
[   11.988183] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[   11.988185] ACPI Warning: 0x0000000000000800-0x000000000000082f SystemIO conflicts with Region \_SB_.PCI0.LPC_.LPIO 1 (20130725/utaddress-251)
[   11.988189] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[   11.988191] lpc_ich: Resource conflict(s) found affecting gpio_ich
[   11.988442] i801_smbus 0000:00:1f.3: SMBus using PCI Interrupt
[   11.990528] mei_me 0000:00:16.0: setting latency timer to 64
[   11.990565] mei_me 0000:00:16.0: irq 60 for MSI/MSI-X
[   12.008691] tpm_tis 00:09: 1.2 TPM (device-id 0x0, rev-id 78)
[   12.030752] Non-volatile memory driver v1.3
[   12.038810] wmi: Mapper loaded
[   12.038913] thinkpad_acpi: ThinkPad ACPI Extras v0.24
[   12.038915] thinkpad_acpi: http://ibm-acpi.sf.net/
[   12.038917] thinkpad_acpi: ThinkPad BIOS GIET62WW (2.12 ), EC unknown
[   12.038918] thinkpad_acpi: Lenovo ThinkPad X240s, model 20AKCTO1WW
[   12.039259] thinkpad_acpi: detected a 8-level brightness capable ThinkPad
[   12.039273] thinkpad_acpi: radio switch found; radios are enabled
[   12.040815] thinkpad_acpi: Console audio control enabled, mode: monitor (read only)
[   12.041514] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input57
[   12.059442] cfg80211: Calling CRDA to update world regulatory domain
[   12.065964] tpm_tis 00:09: TPM is disabled/deactivated (0x6)
[   12.088332] Intel(R) Wireless WiFi driver for Linux, in-tree:
[   12.088334] Copyright(c) 2003-2013 Intel Corporation
[   12.088500] pcieport 0000:00:1c.1: driver skip pci_set_master, fix it!
[   12.088972] iwlwifi 0000:03:00.0: irq 61 for MSI/MSI-X
[   12.128313] iwlwifi 0000:03:00.0: loaded firmware version 22.0.7.0 op_mode iwlmvm
[   12.176520] input: PC Speaker as /devices/platform/pcspkr/input/input58
[   12.211988] thermal LNXTHERM:00: registered as thermal_zone0
[   12.211991] ACPI: Thermal Zone [THM0] (50 C)
[   12.218859] ACPI: Battery Slot [BAT0] (battery present)
[   12.227033] ACPI: Battery Slot [BAT1] (battery present)
[   12.230960] e1000e: Intel(R) PRO/1000 Network Driver - 2.3.2-k
[   12.230962] e1000e: Copyright(c) 1999 - 2013 Intel Corporation.
[   12.231035] e1000e 0000:00:19.0: setting latency timer to 64
[   12.231081] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
[   12.231098] e1000e 0000:00:19.0: irq 62 for MSI/MSI-X
[   12.236934] ACPI: AC Adapter [AC] (on-line)
[   12.339896] iTCO_vendor_support: vendor-support=0
[   12.348079] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.10
[   12.348117] iTCO_wdt: Found a Lynx Point_LP TCO device (Version=2, TCOBASE=0x1860)
[   12.348227] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
[   12.395692] e1000e 0000:00:19.0 eth0: registered PHC clock
[   12.395696] e1000e 0000:00:19.0 eth0: (PCI Express:2.5GT/s:Width x1) 28:d2:44:1a:bd:26
[   12.395698] e1000e 0000:00:19.0 eth0: Intel(R) PRO/1000 Network Connection
[   12.395723] e1000e 0000:00:19.0 eth0: MAC: 11, PHY: 12, PBA No: 1000FF-0FF
[   12.395848] snd_hda_intel 0000:00:03.0: irq 63 for MSI/MSI-X
[   12.395958] snd_hda_intel 0000:00:1b.0: irq 64 for MSI/MSI-X
[   12.463663] iwlwifi 0000:03:00.0: Detected Intel(R) Wireless N 7260, REV=0x144
[   12.464708] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[   12.465148] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[   12.468226] hda_codec: invalid CONNECT_LIST verb 5[1]:0
[   12.468294] hda_codec: invalid CONNECT_LIST verb 6[1]:0
[   12.468359] hda_codec: invalid CONNECT_LIST verb 7[1]:0
[   12.469677] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input60
[   12.469747] input: HDA Intel MID HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:03.0/sound/card0/input62
[   12.469818] input: HDA Intel MID HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.0/sound/card0/input61
[   12.469871] input: HDA Intel MID HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.0/sound/card0/input59
[   12.496989] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card1/input64
[   12.497060] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card1/input63
[   12.516525] ------------[ cut here ]------------
[   12.516533] WARNING: CPU: 2 PID: 237 at drivers/net/wireless/iwlwifi/pcie/trans.c:864 iwl_trans_pcie_grab_nic_access+0x1d5/0x1f0 [iwlwifi]()
[   12.516534] Timeout waiting for hardware access (CSR_GP_CNTRL 0xffffffff)
[   12.516535] Modules linked in: snd_hda_codec_realtek snd_hda_codec_hdmi iwlmvm(+) snd_hda_intel rtsx_pci_ms memstick iTCO_wdt iTCO_vendor_support ac e1000e thermal battery pcspkr evdev mac80211 snd_hda_codec snd_hwdep iwlwifi snd_pcm cfg80211 thinkpad_acpi wmi nvram tpm_tis tpm tpm_bios rfkill mei_me i2c_i801 lpc_ich shpchp intel_rst mei processor psmouse snd_page_alloc snd_timer snd serio_raw ptp pps_core soundcore vboxnetflt(O) vboxdrv(O) nfs lockd sunrpc fscache ext4 crc16 mbcache jbd2 dm_crypt dm_mod hid_generic usbhid hid sd_mod rtsx_pci_sdmmc mmc_core crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd ahci libahci libata ehci_pci rtsx_pci ehci_hcd scsi_mod xhci_hcd usbcore usb_common i915 video button
[   12.516568]  i2c_algo_bit intel_agp intel_gtt drm_kms_helper drm i2c_core
[   12.516572] CPU: 2 PID: 237 Comm: modprobe Tainted: G           O 3.12.5-1-ARCH #1
[   12.516573] Hardware name: LENOVO 20AKCTO1WW/20AKCTO1WW, BIOS GIET62WW (2.12 ) 09/25/2013
[   12.516574]  0000000000000009 ffff8800ca1cfa20 ffffffff814ec9e3 ffff8800ca1cfa68
[   12.516576]  ffff8800ca1cfa58 ffffffff81061b4d ffff8800ca070000 ffff8800ca073258
[   12.516578]  ffff8800ca1cfb10 00000000ffffffff ffff880213f9e098 ffff8800ca1cfab8
[   12.516579] Call Trace:
[   12.516584]  [<ffffffff814ec9e3>] dump_stack+0x54/0x8d
[   12.516588]  [<ffffffff81061b4d>] warn_slowpath_common+0x7d/0xa0
[   12.516590]  [<ffffffff81061bbc>] warn_slowpath_fmt+0x4c/0x50
[   12.516592]  [<ffffffffa086b4b5>] iwl_trans_pcie_grab_nic_access+0x1d5/0x1f0 [iwlwifi]
[   12.516595]  [<ffffffffa085e87e>] iwl_clear_bits_prph+0x2e/0x180 [iwlwifi]
[   12.516597]  [<ffffffffa086848d>] iwl_pcie_tx_start+0x18d/0x1e0 [iwlwifi]
[   12.516600]  [<ffffffffa086c702>] iwl_trans_pcie_fw_alive+0x22/0x30 [iwlwifi]
[   12.516604]  [<ffffffffa0a5b159>] iwl_mvm_load_ucode_wait_alive+0xe9/0x1e0 [iwlmvm]
[   12.516607]  [<ffffffffa0a5b000>] ? 0xffffffffa0a5afff
[   12.516610]  [<ffffffffa086051a>] ? iwl_init_notification_wait+0x6a/0xa0 [iwlwifi]
[   12.516614]  [<ffffffffa0a5b419>] iwl_run_init_mvm_ucode+0x79/0x2c0 [iwlmvm]
[   12.516617]  [<ffffffffa0a5b330>] ? iwl_send_phy_cfg_cmd+0x80/0x80 [iwlmvm]
[   12.516621]  [<ffffffffa0a5ed5a>] iwl_op_mode_mvm_start+0x28a/0x4a0 [iwlmvm]
[   12.516623]  [<ffffffffa085edab>] iwl_opmode_register+0xcb/0xf0 [iwlwifi]
[   12.516626]  [<ffffffffa0a7a000>] ? 0xffffffffa0a79fff
[   12.516629]  [<ffffffffa0a7a037>] iwl_mvm_init+0x37/0x57 [iwlmvm]
[   12.516632]  [<ffffffff810020f2>] do_one_initcall+0xf2/0x1a0
[   12.516635]  [<ffffffff81089928>] ? __blocking_notifier_call_chain+0x58/0x70
[   12.516637]  [<ffffffff810d1e36>] load_module+0x1b76/0x2620
[   12.516640]  [<ffffffff810ce7e0>] ? store_uevent+0x40/0x40
[   12.516642]  [<ffffffff810d2982>] SyS_init_module+0xa2/0xf0
[   12.516644]  [<ffffffff814fb56d>] system_call_fastpath+0x1a/0x1f
[   12.516645] ---[ end trace 5df2bf61cc2120e3 ]---
[   12.519510] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd001a3/0x940300/0x126c00, board id: 2648, fw id: 1450975
[   12.519518] psmouse serio1: synaptics: serio: Synaptics pass-through port at isa0060/serio1/input0
[   12.558073] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input56
[   12.640701] microcode: CPU0 sig=0x40651, pf=0x40, revision=0x16
[   12.641176] microcode: CPU1 sig=0x40651, pf=0x40, revision=0x16
[   12.641545] microcode: CPU2 sig=0x40651, pf=0x40, revision=0x16
[   12.641859] microcode: CPU3 sig=0x40651, pf=0x40, revision=0x16
[   12.642208] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
[   13.580019] media: Linux media interface: v0.10
[   13.591819] Linux video capture interface: v2.00
[   13.627229] uvcvideo: Found UVC 1.00 device Integrated Camera (04f2:b39a)
[   13.635715] input: Integrated Camera as /devices/pci0000:00/0000:00:14.0/usb1/1-8/1-8:1.0/input/input66
[   13.635779] usbcore: registered new interface driver uvcvideo
[   13.635781] USB Video Class driver (1.1.1)
[   13.840675] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: stripe=4,data=ordered
[   14.517917] iwlwifi 0000:03:00.0: Error sending BT_COEX_PRIO_TABLE: time out after 2000ms.
[   14.517947] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 0 write_ptr 1
[   15.372522] psmouse serio2: alps: Unknown ALPS touchpad: E7=10 00 64, EC=10 00 64
[   16.367110] iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 0 [0x5a5a5a5a]
[   16.636896] psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3
[   16.834818] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/serio2/input/input65
[   18.235080] iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 2 [0x5a5a5a5a]
[   20.137929] iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 5 [0x5a5a5a5a]
[   22.004933] iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 7 [0x5a5a5a5a]
[   22.531422] EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts: data=ordered
[   22.574567] systemd-journald[179]: Received request to flush runtime journal from PID 1
[   23.830254] iwlwifi 0000:03:00.0: Failed to run INIT ucode: -110
[   24.226760] ip_tables: (C) 2000-2006 Netfilter Core Team
[   25.045839] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[   25.087278] tun: Universal TUN/TAP device driver, 1.6
[   25.087282] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
[   47.860349] fuse init (API version 7.22)

[-- Attachment #3: patch-20131225.lspci.vvxxx --]
[-- Type: application/octet-stream, Size: 11431 bytes --]

00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
	Subsystem: Lenovo Device 2214
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: <access denied>
00: 86 80 04 0a 06 00 90 20 09 00 00 06 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22
30: 00 00 00 00 e0 00 00 00 00 00 00 00 00 00 00 00

00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
	Subsystem: Lenovo Device 2214
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 56
	Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
	Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at 3000 [size=64]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915
00: 86 80 16 0a 07 04 90 00 09 00 00 03 00 00 00 00
10: 04 00 00 f0 00 00 00 00 0c 00 00 e0 00 00 00 00
20: 01 30 00 00 00 00 00 00 00 00 00 00 aa 17 14 22
30: 00 00 00 00 90 00 00 00 00 00 00 00 0b 01 00 00

00:03.0 Audio device: Intel Corporation Device 0a0c (rev 09)
	Subsystem: Lenovo Device 2214
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 63
	Region 0: Memory at f0630000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00: 86 80 0c 0a 06 04 10 00 09 00 03 04 10 00 00 00
10: 04 00 63 f0 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22
30: 00 00 00 00 50 00 00 00 00 00 00 00 0b 01 00 00

00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC (rev 04) (prog-if 30 [XHCI])
	Subsystem: Lenovo Device 2214
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 57
	Region 0: Memory at f0620000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_hcd
00: 86 80 31 9c 06 04 90 02 04 30 03 0c 00 00 00 00
10: 04 00 62 f0 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22
30: 00 00 00 00 70 00 00 00 00 00 00 00 0b 01 00 00

00:16.0 Communication controller: Intel Corporation Lynx Point-LP HECI #0 (rev 04)
	Subsystem: Lenovo Device 2214
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 60
	Region 0: Memory at f0639000 (64-bit, non-prefetchable) [size=32]
	Capabilities: <access denied>
	Kernel driver in use: mei_me
	Kernel modules: mei_me
00: 86 80 3a 9c 06 04 10 00 04 00 80 07 00 00 80 00
10: 04 90 63 f0 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22
30: 00 00 00 00 50 00 00 00 00 00 00 00 0b 01 00 00

00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I218-V (rev 04)
	Subsystem: Lenovo Device 2214
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 62
	Region 0: Memory at f0600000 (32-bit, non-prefetchable) [size=128K]
	Region 1: Memory at f063e000 (32-bit, non-prefetchable) [size=4K]
	Region 2: I/O ports at 3080 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: e1000e
	Kernel modules: e1000e
00: 86 80 59 15 07 04 10 00 04 00 00 02 00 00 00 00
10: 00 00 60 f0 00 e0 63 f0 81 30 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22
30: 00 00 00 00 c8 00 00 00 00 00 00 00 0b 01 00 00

00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio Controller (rev 04)
	Subsystem: Lenovo Device 2214
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 64
	Region 0: Memory at f0634000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00: 86 80 20 9c 06 04 10 00 04 00 03 04 10 00 00 00
10: 04 40 63 f0 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22
30: 00 00 00 00 50 00 00 00 00 00 00 00 0a 01 00 00

00:1c.0 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 6 (rev e4) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	Memory behind bridge: f0500000-f05fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00: 86 80 1a 9c 07 00 10 00 e4 00 04 06 10 00 81 00
10: 00 00 00 00 00 00 00 00 00 02 02 00 f0 00 00 20
20: 50 f0 50 f0 f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 40 00 00 00 00 00 00 00 09 02 00 00

00:1c.1 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 3 (rev e4) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
	Memory behind bridge: f0400000-f04fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00: 86 80 14 9c 07 00 10 00 e4 00 04 06 10 00 81 00
10: 00 00 00 00 00 00 00 00 00 03 03 00 f0 00 00 20
20: 40 f0 40 f0 f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 40 00 00 00 00 00 00 00 0a 03 00 00

00:1d.0 USB controller: Intel Corporation Lynx Point-LP USB EHCI #1 (rev 04) (prog-if 20 [EHCI])
	Subsystem: Lenovo Device 2214
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 23
	Region 0: Memory at f063d000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci
	Kernel modules: ehci_pci
00: 86 80 26 9c 06 00 90 02 04 20 03 0c 00 00 00 00
10: 00 d0 63 f0 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22
30: 00 00 00 00 50 00 00 00 00 00 00 00 07 01 00 00

00:1f.0 ISA bridge: Intel Corporation Lynx Point-LP LPC Controller (rev 04)
	Subsystem: Lenovo Device 2214
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: <access denied>
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich
00: 86 80 43 9c 07 00 10 02 04 00 01 06 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22
30: 00 00 00 00 e0 00 00 00 00 00 00 00 00 00 00 00

00:1f.2 SATA controller: Intel Corporation Lynx Point-LP SATA Controller 1 [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
	Subsystem: Lenovo Device 2214
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 59
	Region 0: I/O ports at 30a8 [size=8]
	Region 1: I/O ports at 30b4 [size=4]
	Region 2: I/O ports at 30a0 [size=8]
	Region 3: I/O ports at 30b0 [size=4]
	Region 4: I/O ports at 3060 [size=32]
	Region 5: Memory at f063c000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci
	Kernel modules: ahci
00: 86 80 03 9c 07 04 b0 02 04 01 06 01 00 00 00 00
10: a9 30 00 00 b5 30 00 00 a1 30 00 00 b1 30 00 00
20: 61 30 00 00 00 c0 63 f0 00 00 00 00 aa 17 14 22
30: 00 00 00 00 80 00 00 00 00 00 00 00 06 02 00 00

00:1f.3 SMBus: Intel Corporation Lynx Point-LP SMBus Controller (rev 04)
	Subsystem: Lenovo Device 2214
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin C routed to IRQ 18
	Region 0: Memory at f0638000 (64-bit, non-prefetchable) [size=256]
	Region 4: I/O ports at efa0 [size=32]
	Kernel driver in use: i801_smbus
	Kernel modules: i2c_i801
00: 86 80 22 9c 03 00 80 02 04 00 05 0c 00 00 00 00
10: 04 80 63 f0 00 00 00 00 00 00 00 00 00 00 00 00
20: a1 ef 00 00 00 00 00 00 00 00 00 00 aa 17 14 22
30: 00 00 00 00 00 00 00 00 00 00 00 00 0a 03 00 00

02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5227 (rev 01)
	Subsystem: Lenovo Device 2214
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 58
	Region 0: Memory at f0500000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: rtsx_pci
	Kernel modules: rtsx_pci
00: ec 10 27 52 06 04 10 00 01 00 00 ff 10 00 00 00
10: 00 00 50 f0 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22
30: 00 00 00 00 40 00 00 00 00 00 00 00 0b 01 00 00

03:00.0 Network controller: Intel Corporation Wireless 7260 (rev ff) (prog-if ff)
	!!! Unknown header type 7f
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi
00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]
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Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

Hi,

yesterday a friend of mine told me that one can now install Windows
8/8.1 on a USB device natively. So I tried this so-called "Windows To
Go" technology.

Now I have successfully deployed a Windows 8.1 installation on my
external USB HDD and booted my laptop up with it. That is to say, I
can now observe how Intel 7260 acts under Windows.

-- 
wzyboy

Could you tell me what should I do to gather debugging information
such as L1 mode etc in Windows? I will send them to you then. Maybe
this could help, to figure out what the bug of iwlwifi is.

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

(Sorry for sending this mail multiple times...)

Hi,

yesterday a friend of mine told me that one can now install Windows
8/8.1 on a USB device natively. So I tried this so-called "Windows To
Go" technology.

Now I have successfully deployed a Windows 8.1 installation on my
external USB HDD and booted my laptop up with it. That is to say, I
can now observe how Intel 7260 acts under Windows.

Could you tell me what should I do to gather debugging information
such as L1 mode etc in Windows? I will send them to you then. Maybe
this could help, to figure out what the bug of iwlwifi is.

-- 
wzyboy

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]
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Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

[-- Attachment #1: Type: text/plain, Size: 167 bytes --]

2013/12/29 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
> http://rweverything.com/


Here are the output of "PCI" and "PCI Index" of Intel Wireless.


-- 
wzyboy

[-- Attachment #2: P030000.rw --]
[-- Type: application/octet-stream, Size: 34179 bytes --]

Type:PCI Express   Bus 03   Device 00   Function 00
Width:01
0000=86 0001=80 0002=B2 0003=08 0004=06 0005=04 0006=10 0007=00 
0008=6B 0009=00 000A=80 000B=02 000C=10 000D=00 000E=00 000F=00 
0010=04 0011=00 0012=40 0013=F0 0014=00 0015=00 0016=00 0017=00 
0018=00 0019=00 001A=00 001B=00 001C=00 001D=00 001E=00 001F=00 
0020=00 0021=00 0022=00 0023=00 0024=00 0025=00 0026=00 0027=00 
0028=00 0029=00 002A=00 002B=00 002C=86 002D=80 002E=62 002F=C2 
0030=00 0031=00 0032=00 0033=00 0034=C8 0035=00 0036=00 0037=00 
0038=00 0039=00 003A=00 003B=00 003C=00 003D=01 003E=00 003F=00 
0040=10 0041=00 0042=02 0043=00 0044=C0 0045=8E 0046=00 0047=10 
0048=10 0049=0C 004A=19 004B=00 004C=11 004D=EC 004E=06 004F=00 
0050=42 0051=01 0052=11 0053=10 0054=00 0055=00 0056=00 0057=00 
0058=00 0059=00 005A=00 005B=00 005C=00 005D=00 005E=00 005F=00 
0060=00 0061=00 0062=00 0063=00 0064=12 0065=08 0066=08 0067=00 
0068=05 0069=04 006A=00 006B=00 006C=00 006D=00 006E=00 006F=00 
0070=01 0071=00 0072=01 0073=00 0074=00 0075=00 0076=00 0077=00 
0078=00 0079=00 007A=00 007B=00 007C=00 007D=00 007E=00 007F=00 
0080=00 0081=00 0082=00 0083=00 0084=00 0085=00 0086=00 0087=00 
0088=00 0089=00 008A=00 008B=00 008C=00 008D=00 008E=00 008F=00 
0090=00 0091=00 0092=00 0093=00 0094=00 0095=00 0096=00 0097=00 
0098=00 0099=00 009A=00 009B=00 009C=00 009D=00 009E=00 009F=00 
00A0=00 00A1=00 00A2=00 00A3=00 00A4=00 00A5=00 00A6=00 00A7=00 
00A8=00 00A9=00 00AA=00 00AB=00 00AC=00 00AD=00 00AE=00 00AF=00 
00B0=00 00B1=00 00B2=00 00B3=00 00B4=00 00B5=00 00B6=00 00B7=00 
00B8=00 00B9=00 00BA=00 00BB=00 00BC=00 00BD=00 00BE=00 00BF=00 
00C0=00 00C1=00 00C2=00 00C3=00 00C4=00 00C5=00 00C6=00 00C7=00 
00C8=01 00C9=D0 00CA=23 00CB=C8 00CC=00 00CD=00 00CE=00 00CF=0D 
00D0=05 00D1=40 00D2=81 00D3=00 00D4=0C 00D5=F0 00D6=E0 00D7=FE 
00D8=00 00D9=00 00DA=00 00DB=00 00DC=71 00DD=49 00DE=00 00DF=00 
00E0=00 00E1=00 00E2=00 00E3=00 00E4=00 00E5=00 00E6=00 00E7=00 
00E8=00 00E9=00 00EA=00 00EB=00 00EC=00 00ED=00 00EE=00 00EF=00 
00F0=00 00F1=00 00F2=00 00F3=00 00F4=00 00F5=00 00F6=00 00F7=00 
00F8=00 00F9=00 00FA=00 00FB=00 00FC=00 00FD=00 00FE=00 00FF=00 
0100=01 0101=00 0102=01 0103=14 0104=00 0105=00 0106=00 0107=00 
0108=00 0109=00 010A=00 010B=00 010C=31 010D=20 010E=46 010F=00 
0110=00 0111=20 0112=00 0113=00 0114=00 0115=20 0116=00 0117=00 
0118=00 0119=00 011A=00 011B=00 011C=00 011D=00 011E=00 011F=00 
0120=00 0121=00 0122=00 0123=00 0124=00 0125=00 0126=00 0127=00 
0128=00 0129=00 012A=00 012B=00 012C=00 012D=00 012E=00 012F=00 
0130=00 0131=00 0132=00 0133=00 0134=00 0135=00 0136=00 0137=00 
0138=00 0139=00 013A=00 013B=00 013C=00 013D=00 013E=00 013F=00 
0140=03 0141=00 0142=C1 0143=14 0144=AC 0145=82 0146=0D 0147=FF 
0148=FF 0149=4F 014A=51 014B=5C 014C=18 014D=00 014E=41 014F=15 
0150=03 0151=10 0152=03 0153=10 0154=0B 0155=00 0156=01 0157=00 
0158=FE 0159=CA 015A=41 015B=01 015C=1F 015D=1E 015E=F0 015F=00 
0160=0F 0161=00 0162=A0 0163=40 0164=F0 0165=00 0166=00 0167=00 
0168=00 0169=00 016A=00 016B=00 016C=00 016D=00 016E=00 016F=00 
0170=00 0171=00 0172=00 0173=00 0174=00 0175=00 0176=00 0177=00 
0178=00 0179=00 017A=00 017B=00 017C=00 017D=00 017E=00 017F=00 
0180=00 0181=00 0182=00 0183=00 0184=00 0185=00 0186=00 0187=00 
0188=00 0189=00 018A=00 018B=00 018C=00 018D=00 018E=00 018F=00 
0190=00 0191=00 0192=00 0193=00 0194=00 0195=00 0196=00 0197=00 
0198=00 0199=00 019A=00 019B=00 019C=00 019D=00 019E=00 019F=00 
01A0=00 01A1=00 01A2=00 01A3=00 01A4=00 01A5=00 01A6=00 01A7=00 
01A8=00 01A9=00 01AA=00 01AB=00 01AC=00 01AD=00 01AE=00 01AF=00 
01B0=00 01B1=00 01B2=00 01B3=00 01B4=00 01B5=00 01B6=00 01B7=00 
01B8=00 01B9=00 01BA=00 01BB=00 01BC=00 01BD=00 01BE=00 01BF=00 
01C0=00 01C1=00 01C2=00 01C3=00 01C4=00 01C5=00 01C6=00 01C7=00 
01C8=00 01C9=00 01CA=00 01CB=00 01CC=00 01CD=00 01CE=00 01CF=00 
01D0=00 01D1=00 01D2=00 01D3=00 01D4=00 01D5=00 01D6=00 01D7=00 
01D8=00 01D9=00 01DA=00 01DB=00 01DC=00 01DD=00 01DE=00 01DF=00 
01E0=00 01E1=00 01E2=00 01E3=00 01E4=00 01E5=00 01E6=00 01E7=00 
01E8=00 01E9=00 01EA=00 01EB=00 01EC=00 01ED=00 01EE=00 01EF=00 
01F0=00 01F1=00 01F2=00 01F3=00 01F4=00 01F5=00 01F6=00 01F7=00 
01F8=00 01F9=00 01FA=00 01FB=00 01FC=00 01FD=00 01FE=00 01FF=00 
0200=00 0201=00 0202=00 0203=00 0204=00 0205=00 0206=00 0207=00 
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0FF8=00 0FF9=00 0FFA=00 0FFB=00 0FFC=00 0FFD=00 0FFE=00 0FFF=00 
;Device/Vendor ID	0x08B28086
;Revision ID	0x6B
;Class Code	0x028000
;Cacheline Size	0x10
;Latency Timer	0x00
;Interrupt Pin	INTA
;Interrupt Line	None
;BAR1		0xF0400004
;BAR2		0x00000000
;BAR3		0x00000000
;BAR4		0x00000000
;BAR5		0x00000000
;BAR6		0x00000000
;Expansion ROM	0x00000000
;Subsystem ID	0xC2628086

[-- Attachment #3: PI000000.rw --]
[-- Type: application/octet-stream, Size: 3238 bytes --]

Type:PCI Index/Data   Bus 03 Device 00 Function 00 Index 00 Data 04 Start 00000000 Step 01
Width:01
00=00100406 01=00100406 02=00100406 03=00100406 04=00100406 05=00100406 06=00100406 07=00100406 
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10=00100406 11=00100406 12=00100406 13=00100406 14=00100406 15=00100406 16=00100406 17=00100406 
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20=00100406 21=00100406 22=00100406 23=00100406 24=00100406 25=00100406 26=00100406 27=00100406 
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A0=00100406 A1=00100406 A2=00100406 A3=00100406 A4=00100406 A5=00100406 A6=00100406 A7=00100406 
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B0=00100406 B1=00100406 B2=00100406 B3=00100406 B4=00100406 B5=00100406 B6=00100406 B7=00100406 
B8=00100406 B9=00100406 BA=00100406 BB=00100406 BC=00100406 BD=00100406 BE=00100406 BF=00100406 
C0=00100406 C1=00100406 C2=00100406 C3=00100406 C4=00100406 C5=00100406 C6=00100406 C7=00100406 
C8=00100406 C9=00100406 CA=00100406 CB=00100406 CC=00100406 CD=00100406 CE=00100406 CF=00100406 
D0=00100406 D1=00100406 D2=00100406 D3=00100406 D4=00100406 D5=00100406 D6=00100406 D7=00100406 
D8=00100406 D9=00100406 DA=00100406 DB=00100406 DC=00100406 DD=00100406 DE=00100406 DF=00100406 
E0=00100406 E1=00100406 E2=00100406 E3=00100406 E4=00100406 E5=00100406 E6=00100406 E7=00100406 
E8=00100406 E9=00100406 EA=00100406 EB=00100406 EC=00100406 ED=00100406 EE=00100406 EF=00100406 
F0=00100406 F1=00100406 F2=00100406 F3=00100406 F4=00100406 F5=00100406 F6=00100406 F7=00100406 
F8=00100406 F9=00100406 FA=00100406 FB=00100406 FC=00100406 FD=00100406 FE=00100406 FF=00100406 

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Emmanuel Grumbach]

>
>
> Here are the output of "PCI" and "PCI Index" of Intel Wireless.
>
>

looks like all the power features are enabled... including the ones I
told you to disable.
I am lost now...

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/12/29 Emmanuel Grumbach <egrumbach@gmail.com>:
> looks like all the power features are enabled... including the ones I
> told you to disable.
> I am lost now...


Oh... That sounds bad. But I thought both Windows and Linux driver for
this NIC is written by Intel?

-- 
wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Bjorn Helgaas]

On Sun, Dec 29, 2013 at 2:23 AM, wzyboy <wzyboy@wzyboy.org> wrote:
> 2013/12/29 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
>> http://rweverything.com/
>
>
> Here are the output of "PCI" and "PCI Index" of Intel Wireless.

ASPM must be configured on both ends of the link, so for completeness,
can you also collect the "PCI" output for the bridge leading to the
7260 device?  Based on the Linux lspci output, this should be
0000:00:1c.1.

And I assume the device works well with the Windows driver?

Bjorn

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

[-- Attachment #1: Type: text/plain, Size: 445 bytes --]

2014/1/3 Bjorn Helgaas <bhelgaas@google.com>:
> ASPM must be configured on both ends of the link, so for completeness,
> can you also collect the "PCI" output for the bridge leading to the
> 7260 device?  Based on the Linux lspci output, this should be
> 0000:00:1c.1.
>
> And I assume the device works well with the Windows driver?


Here are the "PCI" and "PCI Index" data for 0000:00:1c:1.

And yes the NIC works nice in Windows.

-- 
wzyboy

[-- Attachment #2: P001C01.rw --]
[-- Type: application/octet-stream, Size: 34271 bytes --]

Type:PCI Express   Bus 00   Device 1C   Function 01
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0FC8=00 0FC9=00 0FCA=00 0FCB=00 0FCC=00 0FCD=00 0FCE=00 0FCF=00 
0FD0=00 0FD1=00 0FD2=00 0FD3=00 0FD4=00 0FD5=00 0FD6=00 0FD7=00 
0FD8=00 0FD9=00 0FDA=00 0FDB=00 0FDC=00 0FDD=00 0FDE=00 0FDF=00 
0FE0=00 0FE1=00 0FE2=00 0FE3=00 0FE4=00 0FE5=00 0FE6=00 0FE7=00 
0FE8=00 0FE9=00 0FEA=00 0FEB=00 0FEC=00 0FED=00 0FEE=00 0FEF=00 
0FF0=00 0FF1=00 0FF2=00 0FF3=00 0FF4=00 0FF5=00 0FF6=00 0FF7=00 
0FF8=00 0FF9=00 0FFA=00 0FFB=00 0FFC=00 0FFD=00 0FFE=00 0FFF=00 
;Device/Vendor ID	0x9C148086
;Revision ID	0xE4
;Class Code	0x060400
;Cacheline Size	0x10
;Latency Timer	0x00
;Interrupt Pin	INTC
;Interrupt Line	IRQ18
;BAR1		0x00000000
;BAR2		0x00000000
;Primary Bus#	0x00
;Secondary Bus#	0x03
;Subordinate Bus#	0x03
;IO Range
;  None
;Memory Range
;   0xF0400000 - 0xF04FFFFF
;Prefetchable Memory Range
;  None
;Expansion ROM	0x00000000
;Subsystem ID	0x221417AA

[-- Attachment #3: PI1C0100.rw --]
[-- Type: application/octet-stream, Size: 3238 bytes --]

Type:PCI Index/Data   Bus 00 Device 1C Function 01 Index 00 Data 04 Start 00000000 Step 01
Width:01
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F8=00100006 F9=00100006 FA=00100006 FB=00100006 FC=00100006 FD=00100006 FE=00100006 FF=00100006 

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

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Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2014/1/13 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
> Small update from the bugzilla (https://bugzilla.kernel.org/show_bug.cgi?id=64541).
> The bug is solved... There seem to be a hardware bug with the L1 OFF exit timer. To solve this bug we need *not* to rely on the internal clock and need to keep using the external clock. The internal clock isn't reliable enough and can lead to loss of synchronization between the bridge and the device upon L1 OFF transition.
> This issue has been seen in simulation and not on real hardware... until now... The windows driver has a workaround for this hardware bug, this is why the issue wasn't seen on Windows. I am porting the work around to the Linux driver.
>
> Thank you wzyboy for your patience...
>
> Then end.


So this is a hardware bug instead of a driver bug? Oh...

I'm glad this is finally solved since 2013-11-03. Thanks to all,
providing me with wordarounds, without which I could only use wired
network. :-)

Cheers.

-- 
wzyboy

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

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RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

> 
> On Tue, Nov 12, 2013 at 12:37 PM, Emmanuel Grumbach
> <egrumbach@gmail.com> wrote:
> > On 11/12/2013 09:14 PM, Bjorn Helgaas wrote:
> >> On Tue, Nov 12, 2013 at 11:25 AM, Grumbach, Emmanuel
> >> <emmanuel.grumbach@intel.com> wrote:
> >>
> >>> Right - I remember the discussion we had on that.
> >>> On this device (7260 that has an issue with ASPM), we don't call
> pci_disable_link_state, because we know it is supposed to work...
> >>
> >> If ASPM is supposed to work as far as the hardware is concerned, I
> >> guess you're saying this must be an iwlwifi driver issue.  Right?
> >
> > ASPM is supposed to work as far as the hardware is concerned.
> > We might very well have an issue in iwlwifi - and I am checking this
> > internally with our System guys.
> > It can be a PCI core problem too, and it could also be a platform /
> > BIOS / Lenovo issue.
> > Of course, I have no clue which of these is the culprit here.
> > Our System folks seemed to say that this new device uses L1 substates
> > which can be enabled in Haswell platform which the user owns.
> > Now - L1 substates is a new feature and might introduce issues
> > (apparently) - and this is why they (System folks) wanted the try
> > without L1 substates. But disabling L1 substates doesn't seem trivial
> > with the production BIOS of Lenovo. So I am pretty stuck here.
> 
> For debugging purposes, we could configure L1 substates with setpci, as we
> did for ASPM.  The Linux kernel knows nothing about L1 substates, so the PCI
> core isn't doing anything with them.  It's possible the driver itself could muck
> with L1 substate configuration, but that would be discouraged, and I don't
> see anything in iwlwifi that is doing that.
> 
> The lspci output in
> https://bugzilla.kernel.org/attachment.cgi?id=114061 shows an L1 PM
> Substates extended capability (capability ID 0x1e) for the Root Port leading to
> the 7260 device, but not for the 7260 device itself:
> 
>   00:1c.1 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 3
> (rev e4) (prog-if 00 [Normal decode])
>     Capabilities: [200 v1] #1e
> 
> Per sec 5.5.4 of the ECN for L1 PM Substates (15 Aug 2012), I think L1
> substates must be configured on both ends of the link, and if the 7260 device
> doesn't have that capability, I don't see how it could be enabled.

Makes sense.

> 
> The lspci version wzyboy has doesn't decode the L1 PM Substates capability,
> but there is a newer version at
> git://git.kernel.org/pub/scm/utils/pciutils/pciutils.git that should decode it.
> Also, "lspci -vvxxx" didn't hexdump this capability, which should be at offset
> 0x200.  Using "lspci -xxxx" (four "x"s) should dump it, and we can decode it
> manually.
> 

You can find this in http://permalink.gmane.org/gmane.linux.kernel.wireless.general/115378.

Somehow my System team says that it should be at offset 0x160?
Is it possible that there is a "walk algorithm" with pointers just like for the ASPM register?
I'll try to check the PCI spec when I'll find the time for that.

In any case, here are the relevant offsets:

03:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
[...]
160: 0f 00 a0 40 f0 00 00 00 00 00 00 00 00 00 00 00
[...]
200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

> wzyboy, can you run these commands before the bug occurs and before
> using the "setpci" workaround:
> 
>   lspci -vvxxxx -s00:1c.1
>   lspci -vvxxxx -s03:00.0

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

> >
> > On Tue, Nov 12, 2013 at 12:37 PM, Emmanuel Grumbach
> > <egrumbach@gmail.com> wrote:
> > > On 11/12/2013 09:14 PM, Bjorn Helgaas wrote:
> > >> On Tue, Nov 12, 2013 at 11:25 AM, Grumbach, Emmanuel
> > >> <emmanuel.grumbach@intel.com> wrote:
> > >>
> > >>> Right - I remember the discussion we had on that.
> > >>> On this device (7260 that has an issue with ASPM), we don't call
> > pci_disable_link_state, because we know it is supposed to work...
> > >>
> > >> If ASPM is supposed to work as far as the hardware is concerned, I
> > >> guess you're saying this must be an iwlwifi driver issue.  Right?
> > >
> > > ASPM is supposed to work as far as the hardware is concerned.
> > > We might very well have an issue in iwlwifi - and I am checking this
> > > internally with our System guys.
> > > It can be a PCI core problem too, and it could also be a platform /
> > > BIOS / Lenovo issue.
> > > Of course, I have no clue which of these is the culprit here.
> > > Our System folks seemed to say that this new device uses L1
> > > substates which can be enabled in Haswell platform which the user owns.
> > > Now - L1 substates is a new feature and might introduce issues
> > > (apparently) - and this is why they (System folks) wanted the try
> > > without L1 substates. But disabling L1 substates doesn't seem
> > > trivial with the production BIOS of Lenovo. So I am pretty stuck here.
> >
> > For debugging purposes, we could configure L1 substates with setpci,
> > as we did for ASPM.  The Linux kernel knows nothing about L1
> > substates, so the PCI core isn't doing anything with them.  It's
> > possible the driver itself could muck with L1 substate configuration,
> > but that would be discouraged, and I don't see anything in iwlwifi that is
> doing that.
> >
> > The lspci output in
> > https://bugzilla.kernel.org/attachment.cgi?id=114061 shows an L1 PM
> > Substates extended capability (capability ID 0x1e) for the Root Port
> > leading to the 7260 device, but not for the 7260 device itself:
> >
> >   00:1c.1 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root
> > Port 3 (rev e4) (prog-if 00 [Normal decode])
> >     Capabilities: [200 v1] #1e
> >
> > Per sec 5.5.4 of the ECN for L1 PM Substates (15 Aug 2012), I think L1
> > substates must be configured on both ends of the link, and if the 7260
> > device doesn't have that capability, I don't see how it could be enabled.
> 
> Makes sense.
> 
> >
> > The lspci version wzyboy has doesn't decode the L1 PM Substates
> > capability, but there is a newer version at
> > git://git.kernel.org/pub/scm/utils/pciutils/pciutils.git that should decode it.
> > Also, "lspci -vvxxx" didn't hexdump this capability, which should be
> > at offset 0x200.  Using "lspci -xxxx" (four "x"s) should dump it, and
> > we can decode it manually.
> >
> 
> You can find this in
> http://permalink.gmane.org/gmane.linux.kernel.wireless.general/115378.
> 
> Somehow my System team says that it should be at offset 0x160?
> Is it possible that there is a "walk algorithm" with pointers just like for the
> ASPM register?
> I'll try to check the PCI spec when I'll find the time for that.

So I read a bit the lspci code, and it looks that there are plenty of pointers inside the config space. Fun :)
So basically, since:
#define PCI_EXT_CAP_ID_L1PM        0x1e
This means that I need to find an 0x1e in the output of wzyboy's lspci. I found only one: at offset 0x15d.
Should that mean that my System team was right when they asked for offset 0x160 which is 3 bytes afterwards (and matches more the less the code of lspci)?
If so, 
160: 0f 00 a0 40 f0 00 00 00 00 00 00 00 00 00 00 00 seems to say that it is enabled?

OTOH, 0x15d is 0x1e and not 0x001e as required by PCI-SIG ECN? Me scraping my head.

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

> > > On Tue, Nov 12, 2013 at 12:37 PM, Emmanuel Grumbach
> > > <egrumbach@gmail.com> wrote:
> > > > On 11/12/2013 09:14 PM, Bjorn Helgaas wrote:
> > > >> On Tue, Nov 12, 2013 at 11:25 AM, Grumbach, Emmanuel
> > > >> <emmanuel.grumbach@intel.com> wrote:
> > > >>
> > > >>> Right - I remember the discussion we had on that.
> > > >>> On this device (7260 that has an issue with ASPM), we don't call
> > > pci_disable_link_state, because we know it is supposed to work...
> > > >>
> > > >> If ASPM is supposed to work as far as the hardware is concerned,
> > > >> I guess you're saying this must be an iwlwifi driver issue.  Right?
> > > >
> > > > ASPM is supposed to work as far as the hardware is concerned.
> > > > We might very well have an issue in iwlwifi - and I am checking
> > > > this internally with our System guys.
> > > > It can be a PCI core problem too, and it could also be a platform
> > > > / BIOS / Lenovo issue.
> > > > Of course, I have no clue which of these is the culprit here.
> > > > Our System folks seemed to say that this new device uses L1
> > > > substates which can be enabled in Haswell platform which the user
> owns.
> > > > Now - L1 substates is a new feature and might introduce issues
> > > > (apparently) - and this is why they (System folks) wanted the try
> > > > without L1 substates. But disabling L1 substates doesn't seem
> > > > trivial with the production BIOS of Lenovo. So I am pretty stuck here.
> > >
> > > For debugging purposes, we could configure L1 substates with setpci,
> > > as we did for ASPM.  The Linux kernel knows nothing about L1
> > > substates, so the PCI core isn't doing anything with them.  It's
> > > possible the driver itself could muck with L1 substate
> > > configuration, but that would be discouraged, and I don't see
> > > anything in iwlwifi that is
> > doing that.
> > >
> > > The lspci output in
> > > https://bugzilla.kernel.org/attachment.cgi?id=114061 shows an L1 PM
> > > Substates extended capability (capability ID 0x1e) for the Root Port
> > > leading to the 7260 device, but not for the 7260 device itself:
> > >
> > >   00:1c.1 PCI bridge: Intel Corporation Lynx Point-LP PCI Express
> > > Root Port 3 (rev e4) (prog-if 00 [Normal decode])
> > >     Capabilities: [200 v1] #1e
> > >
> > > Per sec 5.5.4 of the ECN for L1 PM Substates (15 Aug 2012), I think
> > > L1 substates must be configured on both ends of the link, and if the
> > > 7260 device doesn't have that capability, I don't see how it could be
> enabled.
> >
> > Makes sense.
> >
> > >
> > > The lspci version wzyboy has doesn't decode the L1 PM Substates
> > > capability, but there is a newer version at
> > > git://git.kernel.org/pub/scm/utils/pciutils/pciutils.git that should decode
> it.
> > > Also, "lspci -vvxxx" didn't hexdump this capability, which should be
> > > at offset 0x200.  Using "lspci -xxxx" (four "x"s) should dump it,
> > > and we can decode it manually.
> > >
> >
> > You can find this in
> > http://permalink.gmane.org/gmane.linux.kernel.wireless.general/115378.
> >
> > Somehow my System team says that it should be at offset 0x160?
> > Is it possible that there is a "walk algorithm" with pointers just
> > like for the ASPM register?
> > I'll try to check the PCI spec when I'll find the time for that.
> 
> So I read a bit the lspci code, and it looks that there are plenty of pointers
> inside the config space. Fun :) So basically, since:
> #define PCI_EXT_CAP_ID_L1PM        0x1e
> This means that I need to find an 0x1e in the output of wzyboy's lspci. I found
> only one: at offset 0x15d.
> Should that mean that my System team was right when they asked for offset
> 0x160 which is 3 bytes afterwards (and matches more the less the code of
> lspci)?
> If so,
> 160: 0f 00 a0 40 f0 00 00 00 00 00 00 00 00 00 00 00 seems to say that it is
> enabled?
> 
> OTOH, 0x15d is 0x1e and not 0x001e as required by PCI-SIG ECN? Me scraping
> my head.

Ok - so I have now the complete picture.
This device was designed before PCI-SIG gave an ID to L1 PM Substates, so Intel had to use the L1 PM Substate as a Vendor Define whose ID is 0xCAFE. Layout is the same as defined now in PCI-SIG (page 21 in http://www.pcisig.com/specifications/pciexpress/specifications/ECN_L1_PM_Substates_with_CLKREQ_31_May_2013_Rev10a.pdf).

So:
150: 03 10 03 10 0b 00 01 00 fe ca 41 01 1f 1e f0 00
160: 0f 00 a0 40 f0 00 00 00 00 00 00 00 00 00 00 00

We can see that L1 PM Substate *is* enabled:
004h = 41 01 1f 1e
008h = 0f 00 f0 00
00Ch = a0 40 f0 00

I may have messed up things here...

According to System / HW, it is unsafe to disable L1 PM Substate using setpci, even if we disable it from both sides (device and bridge). This kind of settings should be done by BIOS only.
So we have 2 options here (assuming that we can't disable that in BIOS):
* either we try to disable L1 PM Substate even my colleagues think it is not safe
* either we just disable L1 altogether

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/13 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
> According to System / HW, it is unsafe to disable L1 PM Substate using setpci, even if we disable it from both sides (device and bridge). This kind of settings should be done by BIOS only.
> So we have 2 options here (assuming that we can't disable that in BIOS):
> * either we try to disable L1 PM Substate even my colleagues think it is not safe
> * either we just disable L1 altogether


Unsafe means battery blows up like a Samsung? :-)

My laptop is now connected to classroom's WiFi (with setpci
workaround) and running on battery, it seems the power consumption is
acceptable ... at least not too much more than before.

-- 
wzyboy

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

PiANCj4gMjAxMy8xMS8xMyBHcnVtYmFjaCwgRW1tYW51ZWwgPGVtbWFudWVsLmdydW1iYWNoQGlu
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ZSBpdCBmcm9tIGJvdGggc2lkZXMgKGRldmljZSBhbmQgYnJpZGdlKS4gVGhpcyBraW5kIG9mDQo+
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IGVuY291cmFnaW5nIDopDQo=

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[wzyboy]

2013/11/13 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
>> Unsafe means battery blows up like a Samsung? :-)
>>
>
> You already blew your warranty the minute your installed Linux, didn't you? :)
>

Indeed. :-)

>> My laptop is now connected to classroom's WiFi (with setpci
>> workaround) and running on battery, it seems the power consumption is
>> acceptable ... at least not too much more than before.
>
> Cool - we work for nothing - encouraging :)

To be frank I really know little about hardware (i.e. I had never
heard of "L1" "ASPM" and other HW terms before you talked about it...)
but I'll keep an eye, see if "setpci" workaround (this disables L1 /
ASPM?) has any side effects. (I hope not)

-- 
wzyboy

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Bjørn Mork]

[-- Attachment #1: Type: text/plain, Size: 6672 bytes --]

"Grumbach, Emmanuel" <emmanuel.grumbach@intel.com> writes:

> Ok - so I have now the complete picture.

> This device was designed before PCI-SIG gave an ID to L1 PM Substates,
> so Intel had to use the L1 PM Substate as a Vendor Define whose ID is
> 0xCAFE. Layout is the same as defined now in PCI-SIG (page 21 in
> http://www.pcisig.com/specifications/pciexpress/specifications/ECN_L1_PM_Substates_with_CLKREQ_31_May_2013_Rev10a.pdf).
>
> So:
> 150: 03 10 03 10 0b 00 01 00 fe ca 41 01 1f 1e f0 00
> 160: 0f 00 a0 40 f0 00 00 00 00 00 00 00 00 00 00 00
>
> We can see that L1 PM Substate *is* enabled:
> 004h = 41 01 1f 1e
> 008h = 0f 00 f0 00
> 00Ch = a0 40 f0 00

Wow!  That's extremely useful.

But I do have some problems placing the individiual bits right in these
LE registers.  And so have you, I believe...  You are 2 bytes off.
"41 01" is part of the vendor specific header (12 bits length == 0x014
and 4 bits version == 0x1.

So I made a simple patch for lspci based on your info.  Seems to work
for me:


03:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 63)
	Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:4070]
	Physical Slot: 1
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 45
	Region 0: Memory at f0500000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: [c8] Power Management version 3
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
		Address: 00000000fee0100c  Data: 4152
	Capabilities: [40] Express (v2) Endpoint, MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 unlimited
			ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+ FLReset-
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
		LnkCap:	Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <32us
			ClockPM+ Surprise- LLActRep- BwNot-
		LnkCtl:	ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+
			ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
		DevCap2: Completion Timeout: Range B, TimeoutDis+, LTR+, OBFF Via WAKE#
		DevCtl2: Completion Timeout: 16ms to 55ms, TimeoutDis-, LTR-, OBFF Disabled
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
	Capabilities: [100 v1] Advanced Error Reporting
		UESta:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UEMsk:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UESvrt:	DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
		CESta:	RxErr- BadTLP+ BadDLLP- Rollover- Timeout- NonFatalErr+
		CEMsk:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
		AERCap:	First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
	Capabilities: [140 v1] Device Serial Number 0c-8b-fd-ff-ff-08-09-71
	Capabilities: [14c v1] Latency Tolerance Reporting
		Max snoop latency: 0ns
		Max no snoop latency: 0ns
	Capabilities: [154 v1] Vendor Specific Information: ID=cafe Rev=1 Len=014 L1 PM Substates
		L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
			  PortCommonModeRestoreTime=30us PortTPowerOnTime=60us
	Kernel driver in use: iwlwifi
00: 86 80 b1 08 06 05 10 00 63 00 80 02 10 00 00 00
10: 04 00 50 f0 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 70 40
30: 00 00 00 00 c8 00 00 00 00 00 00 00 0b 01 00 00
40: 10 00 02 00 c0 8e 00 10 10 0c 11 00 11 ec 06 00
50: 42 01 11 10 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 12 08 08 00 05 00 00 00 00 00 00 00
70: 01 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 01 d0 23 c8 00 00 00 0d
d0: 05 40 81 00 0c 10 e0 fe 00 00 00 00 52 41 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
100: 01 00 01 14 00 00 00 00 00 00 00 00 31 20 46 00
110: 40 20 00 00 00 20 00 00 00 00 00 00 00 00 00 00
120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
140: 03 00 c1 14 71 09 08 ff ff fd 8b 0c 18 00 41 15
150: 00 00 00 00 0b 00 01 00 fe ca 41 01 1f 1e f0 00
160: 00 00 00 00 28 00 00 00 00 00 00 00 00 00 00 00
170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
210: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
220: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
230: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
240: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[snipped the remaing 00 bytes]


> I may have messed up things here...
>
> According to System / HW, it is unsafe to disable L1 PM Substate using setpci, even if we disable it from both sides (device and bridge). This kind of settings should be done by BIOS only.
> So we have 2 options here (assuming that we can't disable that in BIOS):
> * either we try to disable L1 PM Substate even my colleagues think it is not safe
> * either we just disable L1 altogether

How about forcing ASPM even if the BIOS says it's unsupported?  Has that
been tested?


Bjørn


[-- Attachment #2: 0001-lspci-decode-Intel-vendor-specific-L1-PM-Substates.patch --]
[-- Type: text/x-diff, Size: 1493 bytes --]

>From de4befe40cb12a57a6edc4dd22271fa8a000d8f1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>
Date: Wed, 13 Nov 2013 14:24:06 +0100
Subject: [PATCH] lspci: decode Intel vendor specific L1 PM Substates
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Bjørn Mork <bjorn@mork.no>
---
 ls-ecaps.c |   14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/ls-ecaps.c b/ls-ecaps.c
index c6f217e..144bf77 100644
--- a/ls-ecaps.c
+++ b/ls-ecaps.c
@@ -429,10 +429,13 @@ cap_rclink(struct device *d, int where)
     }
 }
 
+static void cap_l1pm(struct device *d, int where);
+
 static void
 cap_evendor(struct device *d, int where)
 {
   u32 hdr;
+  u16 id;
 
   printf("Vendor Specific Information: ");
   if (!config_fetch(d, where + PCI_EVNDR_HEADER, 4))
@@ -442,10 +445,17 @@ cap_evendor(struct device *d, int where)
     }
 
   hdr = get_conf_long(d, where + PCI_EVNDR_HEADER);
-  printf("ID=%04x Rev=%d Len=%03x <?>\n",
-    BITS(hdr, 0, 16),
+  id = BITS(hdr, 0, 16);
+  printf("ID=%04x Rev=%d Len=%03x ",
+    id,
     BITS(hdr, 16, 4),
     BITS(hdr, 20, 12));
+
+  /* Intel used this vendor specific ID prior to PCI-SIG allocating 0x001e */
+  if (d->dev->vendor_id == cpu_to_le16(0x8086) && id == cpu_to_le16(0xcafe))
+	  cap_l1pm(d, where + PCI_EVNDR_HEADER);
+  else
+	  printf("<?>\n");
 }
 
 static void
-- 
1.7.10.4

RE: [Ilw] Intel Wireless 7260 hardware timed out randomly

[Grumbach, Emmanuel]

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