linux-kernel - Re: 3.8.0-rc4+ - Oops on removing WinTV-HVR-1400 expresscard TV Tuner

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Date:	Mon, 28 Jan 2013 00:21:51 +0100
From:	Martin Mokrejs <mmokrejs@...d.natur.cuni.cz>
To:	Chris Clayton <chris2553@...glemail.com>
CC:	Yijing Wang <wangyijing0307@...il.com>,
	LKML <linux-kernel@...r.kernel.org>, linux-pci@...r.kernel.org
Subject: Re: 3.8.0-rc4+ - Oops on removing WinTV-HVR-1400 expresscard TV Tuner

Hi Chris,

Chris Clayton wrote:
> Thanks again, Martin.
> 
> Firstly, maybe we should remove the linux-media list from the copy list. I imagine this hotplug stuff is just noise to them.
> 
> [snip]
>> Do you have any other express card around to try if it works at all? Try that always after a cold boot.
>>
> Not at the moment, but I ordered at USB3 expresscard yesterday, so I will have one soon.
> 
>> Posting a diff result of the below procedure might help:
>>
>> # lspci -vvvxxx > lspci.before_insertion.txt
>>
>> [plug your card into the slot]
>>
>> # lspci -vvvxxx > lspci.after_insertion.txt
>>
>> [ unplug your card]
>>
>> # lspci -vvvxxx > lspci.after_1st_removal.txt
>>
>> [re-plug your card into the slot]
>>
>> # lspci -vvvxxx > lspci.after_1st_re-insertion.txt
>>
>> [ unplug your card]
>>
>> # lspci -vvvxxx > lspci.after_2nd_removal.txt
>>
> 
> OK, I've been using kernel 3.8.0-rc kernels so far, but given that is still under development, I've switched to 3.7.4, mainly because you are having success with 3.7.x, acpiphp and pcie_aspm=off. I verified the environment as follows:
> 
> [chris:~]$ cat /proc/cmdline
> root=/dev/sda5 pcie_aspm=off ro resume=/dev/sda6
> [chris:~]$ dmesg | grep ASPM
> [    0.000000] PCIe ASPM is disabled
> [    0.348959]  pci0000:00: ACPI _OSC support notification failed, disabling PCIe ASPM
> [chris:~]$ dmesg | grep acpiphp
> [    0.400846] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
> [chris:~]$ dmesg | grep pciehp
> [chris:~]$ uname -a
> Linux laptop 3.7.4 #13 SMP PREEMPT Sun Jan 27 18:39:39 GMT 2013 i686 GNU/Linux
> 

vostro ~ # cat /proc/cmdline
root=/dev/sda5 pciehp.pciehp_debug=1 slub_debug=AFPZ pcie_aspm=off
vostro ~ # dmesg | grep ASPM
[    0.000000] PCIe ASPM is disabled
vostro ~ # dmesg | grep acpiphp
[    2.449038] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    2.453757] acpiphp: Slot [1] registered
vostro ~ # uname -a
Linux vostro 3.7.4-default #2 SMP Mon Jan 21 22:45:22 MET 2013 x86_64 Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz GenuineIntel GNU/Linux
vostro ~ # 

> 
>> Then compare them using diff. These should have no difference:
>>
>> diff lspci.after_insertion.txt lspci.after_1st_re-insertion.txt
>> diff lspci.after_1st_removal.txt lspci.after_2nd_removal.txt
>>
> Correct, there were no differences.
> 
>>
>> These may have only little difference, or none:
>>
>> diff lspci.before_insertion.txt lspci.after_1st_removal.txt
> 
> 263c263
> <               LnkCap: Port #4, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <1us, L1 <16us
> ---
>  >               LnkCap: Port #4, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <16us
> 265c265
> <               LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk-
> ---
>  >               LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
> 267c267
> <               LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
> ---
>  >               LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt+ ABWMgmt-
> 273c273
> <                       Changed: MRL- PresDet- LinkState-
> ---
>  >                       Changed: MRL- PresDet- LinkState+
> 295,296c295,296
> < 40: 10 80 42 01 00 80 00 00 00 00 10 00 12 4c 12 04
> < 50: 03 00 01 10 60 b2 1c 00 08 00 00 00 00 00 00 00
> ---
>  > 40: 10 80 42 01 00 80 00 00 00 00 10 00 12 3c 12 04
>  > 50: 40 00 11 50 60 b2 1c 00 08 00 00 01 00 00 00 00
> 
>> diff lspci.after_1st_removal.txt lspci.after_2nd_removal.txt
>>
> No difference.
>>
>>
>> Finally, these should confirm whether the PresDet works for you (for me NOT with pciehp but does work with acpiphp).
>> You should see PresDet- to PresDet+ changes in:
>>
> Yes, I do see the PresDet- to PresDet+ changes
> 
>> diff lspci.before_insertion.txt lspci.after_insertion.txt
> 
> 263c263
> <               LnkCap: Port #4, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <1us, L1 <16us
> ---
>  >               LnkCap: Port #4, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <16us
> 265c265
> <               LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk-
> ---
>  >               LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
> 267c267
> <               LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
> ---
>  >               LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
> 272,273c272,273
> <               SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
> <                       Changed: MRL- PresDet- LinkState-
> ---
>  >               SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
>  >                       Changed: MRL- PresDet- LinkState+
> 295,296c295,296
> < 40: 10 80 42 01 00 80 00 00 00 00 10 00 12 4c 12 04
> < 50: 03 00 01 10 60 b2 1c 00 08 00 00 00 00 00 00 00
> ---
>  > 40: 10 80 42 01 00 80 00 00 00 00 10 00 12 3c 12 04
>  > 50: 40 00 11 70 60 b2 1c 00 08 00 40 01 00 00 00 00
> 
>> diff lspci.after_1st_removal.txt lspci.after_1st_re-insertion.txt
> 267c267
> <               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-
> 272c272
> <               SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
> ---
>  >               SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
> 296c296
> < 50: 40 00 11 50 60 b2 1c 00 08 00 00 01 00 00 00 00
> ---
>  > 50: 40 00 11 70 60 b2 1c 00 08 00 40 01 00 00 00 00
> 
>>
>> You should see PresDet+ to PresDet- changes in:
> Yes, I see those changes too.
>> diff lspci.after_insertion.txt lspci.after_1st_removal.txt
> 267c267
> <               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-
> 272c272
> <               SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
> ---
>  >               SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
> 296c296
> < 50: 40 00 11 70 60 b2 1c 00 08 00 40 01 00 00 00 00
> ---
>  > 50: 40 00 11 50 60 b2 1c 00 08 00 00 01 00 00 00 00
> 
>> diff lspci.after_1st_re-insertion.txt lspci.after_2nd_removal.txt
> 267c267
> <               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-
> 272c272
> <               SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
> ---
>  >               SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
> 296c296
> < 50: 40 00 11 70 60 b2 1c 00 08 00 40 01 00 00 00 00
> ---
>  > 50: 40 00 11 50 60 b2 1c 00 08 00 00 01 00 00 00 00
>>
>> I did plenty of these with my laptop using 3.3.x and 3.7.1 and the conclusion was
>> that pciehp got broken since some 3.6? (commit 0d52f54e2ef64c189dedc332e680b2eb4a34590a)
>> but I can live on 3.7.x with acpiphp and pcie_aspm=off.
> 
> I could live with that too, but despite my findings being in line with your predictions, hotplug does not work for me.

Would be nice if you could the the diffs for pciehp, just to see if PresDet works for you or not.
But that is my pain, not yours. ;)


You do have pci_hotplug in kernel, right?


> 
>> The above test could tell you what
>> works in your case. Of course, you can try separately pciehp and acpiphp. With 3.4
>> series I lived with pciehp and pcie_aspm=force.
> Need sleep now, but tomorrow, I'll build a 3.4 kernel and try pciehp and pcie_aspm=force.
>>
>> Martin
>> BTW: Re-post your dmesg output so that we can see if you those OSC errors
>> (for details see "Re: Dell Vostro 3550: pci_hotplug+acpiphp require 'pcie_aspm=force' on kernel command-line for hotplug to work" thread).
>>
> I've attached a file containing the output from dmesg. I does contain errors related to OSC.

Yes, you suffer from the same. We have both SandyBridge so that's not surprising to me.

BTW, you may try newer BIOS hidden under files for Win8 64bit at

http://www.fujitsu.com/downloads/COMP/fpcap/drivers/Driver/FUJ02E3/FJ/v1.30.0-DR12-0803_W8-64/FUJ02E3_FJ_v1.30.0-DR12-0803_W8-64.exe:

FUJ02E3	Fujitsu	-	v1.30	409 KB	


Martin
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