[ath9k-devel] Weird Atheros 9485 http connecting problems

[Arkh4mKn1ght <arkh4mkn1ght@gmail.com>]

Hi

I'm still testing but the issue reappeared again with the ASPM disabled 
on the card. This ocurred after starting the computer from hibernation 
and as i mentioned before ASPM was disabled only on the card and not on 
the root complex. I found these messages on the log:

May 18 10:42:56 localhost kernel: mei_me 0000:00:16.0: suspend
May 18 10:42:57 localhost kernel: ath: phy0: RX failed to go idle in 10 
ms RXSM=0xdeadbeef
May 18 10:42:57 localhost kernel: ath: phy0: DMA failed to stop in 10 ms 
AR_CR=0xdeadbeef AR_DIAG_SW=0xdeadbeef DMADBG_7=0xdeadbeef

After rebooting the computer everything worked fine again.

Now i have disabled ASPM on both the root complex and the atheros card 
so i'm still testing to see if the issue happens again. until now (7+ 
hours everything is fine).
I will let you know if the issue reappears after these changes

Greetings
Oskar.



On 05/18/2014 08:51 PM, Adrian Chadd wrote:
> So was it ASPM?
>
>
> -a
>
>
> On 16 May 2014 05:22, Arkh4mKn1ght <arkh4mkn1ght@gmail.com> wrote:
>> Hi
>>
>> That was a nice find. I thought ASPM was disabled because i always boot
>> my kernel with the
>> pcie_aspm=off flag. I have now disabled ASPM following the link you
>> shared with me for my card but is it enough to disable ASPM on the card
>> or do i have to disable it also for the root complex?
>>
>> root complex: (byte 0x50 has value 42 it means L1 is enabled)
>> [root at localhost kernel]# lspci -s 00:1c.0 -xxx
>> 00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset
>> Family PCI Express Root Port 1 (rev c4)
>> 00: 86 80 10 1e 07 00 10 00 c4 00 04 06 10 00 81 00
>> 10: 00 00 00 00 00 00 00 00 00 07 07 00 f0 00 00 00
>> 20: 20 c1 20 c1 51 c1 51 c1 00 00 00 00 00 00 00 00
>> 30: 00 00 00 00 40 00 00 00 00 00 00 00 0a 01 00 00
>> 40: 10 80 42 01 00 80 00 00 00 00 10 00 12 3c 12 01
>> 50: 42 00 11 70 00 b2 04 00 00 00 40 01 00 00 00 00
>> 60: 00 00 00 00 16 00 00 00 00 00 00 00 00 00 00 00
>> 70: 02 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00
>> 80: 05 90 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>> 90: 0d a0 00 00 4d 10 ab 90 00 00 00 00 00 00 00 00
>> a0: 01 00 02 c8 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 00 00 00 00 00 00 00 00
>> d0: 00 00 00 01 02 0b 00 00 00 80 11 81 00 00 00 00
>> e0: 00 3f 00 00 00 00 00 00 01 00 00 00 00 00 00 00
>> f0: 00 00 00 00 00 00 00 00 87 0f 04 08 00 00 00 00
>>
>> [root at localhost kernel]#
>>
>> Atheros card with ASPM disabled:
>> 07:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network
>> Adapter (rev 01)
>>       Subsystem: Foxconn International, Inc. Device e044
>>       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-
>>       Interrupt: pin A routed to IRQ 11
>>       Region 0: Memory at c1200000 (64-bit, non-prefetchable) [size=512K]
>>       Expansion ROM at c1500000 [disabled] [size=64K]
>>       Capabilities: [40] Power Management version 2
>>           Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
>> PME(D0+,D1+,D2+,D3hot+,D3cold+)
>>           Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>>       Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
>>           Address: 0000000000000000  Data: 0000
>>           Masking: 00000000  Pending: 00000000
>>       Capabilities: [70] Express (v2) Endpoint, MSI 00
>>           DevCap:    MaxPayload 128 bytes, PhantFunc 0, Latency L0s
>> unlimited, L1 <64us
>>               ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
>>           DevCtl:    Report errors: Correctable- Non-Fatal- Fatal-
>> Unsupported-
>>               RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
>>               MaxPayload 128 bytes, MaxReadReq 512 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 <64us
>>               ClockPM- Surprise- LLActRep- BwNot-
>>           LnkCtl:    ASPM Disabled; RCB 64 bytes Disabled- CommClk+
>>               ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>>
>> How do i make the changes permanent when booting the system ?
>>
>> Greetings
>>
>> Oskar
>>
>> On 05/16/2014 06:06 AM, Rajkumar Manoharan wrote:
>>> On Thu, May 15, 2014 at 08:02:20PM -0300, Arkh4mKn1ght wrote:
>>>> Hi
>>>>
>>>> The problem happened again suddenly i had difficulty browsing websites.
>>>> When i tried to load a site the browser stays in connecting..... for some
>>>> minutes. After a while it does
>>>> load the sites but painfully slow. Pings, ssh connections work fine, but a
>>>> connection to smtp.gmail.com to send you this email also stayed in
>>>> connecting...(im using thunderbird as email client) though.
>>>>
>>>> I disabled ANI after it happened but nothing changed, the problem persisted.
>>>> One thing i noticed though, as soon as i disabled ANI, the ath9k statements
>>>> stopped to appear in the kernel log...
>>>>
>>>> I'm sending you the kernel log where it shows a lot of calibration
>>>> statements. the problem started more or less at 19pm.
>>>> Let me know if you need anything else.
>>>>
>>> Thanks for the log. ASPM is enabled for your card. Can you please disable ASPM
>>> and confirm the issue. Meanwhile I am going through the log and will update.
>>>
>>> Steps to disable ASPM:-
>>>
>>> http://wireless.kernel.org/en/users/Documentation/ASPM#Force_enable_or_disable_ASPM
>>>
>>> After disabling ASPM, please confirm the same in lspci -vvvv output.
>>>
>>> -Rajkumar
>>>
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