On Tue, 26 Feb 2008 16:22:43 +1100 Tim Connors wrote:

> Possibly because of the frequent renegotiating my iwl4965 card has
> been making, it has now decided it's not going to pass packets
> reliably until presumably next time I reboot.
>
> I've noticed messages in syslog that I hadn't seen when things were
> working fine. The problem possibly has only surfaced after rmmodding
> the iwl4965 module, then remodding it. It stays with me through being
> removed and modprobed again. It is being bonded in conjunction with a
> physical ethernet, if that is relevant, although I think I reproduced
> it when it was on its lonesome.
>
>
> Fresh after reboot:
>
> Feb 22 09:49:31 dirac kernel: iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux, 1.1.17kds
> Feb 22 09:49:31 dirac kernel: iwl4965: Copyright(c) 2003-2007 Intel Corporation
> Feb 22 09:49:31 dirac kernel: ACPI: PCI Interrupt 0000:0c:00.0[A] -> GSI 17 (level, low) -> IRQ 17
> Feb 22 09:49:31 dirac kernel: PCI: Setting latency timer of device 0000:0c:00.0 to 64
> Feb 22 09:49:31 dirac kernel: iwl4965: Detected Intel Wireless WiFi Link 4965AGN
> Feb 22 09:49:31 dirac kernel: ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 21 (level, low) -> IRQ 21
> Feb 22 09:49:31 dirac kernel: PCI: Setting latency timer of device 0000:00:1b.0 to 64
> Feb 22 09:49:31 dirac kernel: iwl4965: Tunable channels: 11 802.11bg, 13 802.11a channels
> Feb 22 09:49:31 dirac kernel: phy0: Selected rate control algorithm 'iwl-4965-rs'
>
> now finished with it, will be deconfigured and rmmodded:
>
> Feb 23 03:05:23 dirac kernel: __dev_addr_discard: address leakage! da_users=1
> Feb 23 03:05:23 dirac kernel: ACPI: PCI interrupt for device 0000:0c:00.0 disabled
>
> The modprobed again:
>
> Feb 23 03:05:35 dirac kernel: iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux, 1.1.17kds
> Feb 23 03:05:35 dirac kernel: iwl4965: Copyright(c) 2003-2007 Intel Corporation
> Feb 23 03:05:35 dirac kernel: ACPI: PCI Interrupt 0000:0c:00.0[A] -> GSI 17 (level, low) -> IRQ 17
> Feb 23 03:05:35 dirac kernel: PCI: Setting latency timer of device 0000:0c:00.0 to 64
> Feb 23 03:05:35 dirac kernel: iwl4965: Detected Intel Wireless WiFi Link 4965AGN
> Feb 23 03:05:35 dirac kernel: iwl4965: Tunable channels: 11 802.11bg, 13 802.11a channels
> Feb 23 03:05:35 dirac kernel: phy9: Selected rate control algorithm 'iwl-4965-rs'
>
> according to lspci -vvv, 0c:00.0 is:
>
> 0c:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN Network Connection (rev 61)
> Subsystem: Intel Corporation Unknown device 1120
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- > Latency: 0, Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 379
> Region 0: Memory at f9ffe000 (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 PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+
> Address: 00000000fee0300c Data: 4194
> Capabilities: [e0] Express (v1) 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+
> 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, Latency L0 <128ns, L1 <64us
> ClockPM+ Suprise- LLActRep- BwNot-
> LnkCtl: ASPM L0s Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
> ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
> LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
> Capabilities: [100] Advanced Error Reporting
> Capabilities: [140] Device Serial Number d7-36-9b-ff-ff-e8-13-00
> Kernel driver in use: iwl4965
> Kernel modules: iwl4965

(cc linux-wireless)

What kernel version is this?

Is this a regression from an earlier kenrel version? If so, which?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

On Mon, 25 Feb 2008, Andrew Morton wrote:

> On Tue, 26 Feb 2008 16:22:43 +1100 Tim Connors wrote:
>
> > Possibly because of the frequent renegotiating my iwl4965 card has
> > been making, it has now decided it's not going to pass packets
> > reliably until presumably next time I reboot.
> >
> > I've noticed messages in syslog that I hadn't seen when things were
> > working fine. The problem possibly has only surfaced after rmmodding
> > the iwl4965 module, then remodding it. It stays with me through being
> > removed and modprobed again. It is being bonded in conjunction with a
> > physical ethernet, if that is relevant, although I think I reproduced
> > it when it was on its lonesome.
> >
> >
> > Fresh after reboot:
> >
> > Feb 22 09:49:31 dirac kernel: iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux, 1.1.17kds
> > Feb 22 09:49:31 dirac kernel: iwl4965: Copyright(c) 2003-2007 Intel Corporation
> > Feb 22 09:49:31 dirac kernel: ACPI: PCI Interrupt 0000:0c:00.0[A] -> GSI 17 (level, low) -> IRQ 17
> > Feb 22 09:49:31 dirac kernel: PCI: Setting latency timer of device 0000:0c:00.0 to 64
> > Feb 22 09:49:31 dirac kernel: iwl4965: Detected Intel Wireless WiFi Link 4965AGN
> > Feb 22 09:49:31 dirac kernel: ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 21 (level, low) -> IRQ 21
> > Feb 22 09:49:31 dirac kernel: PCI: Setting latency timer of device 0000:00:1b.0 to 64
> > Feb 22 09:49:31 dirac kernel: iwl4965: Tunable channels: 11 802.11bg, 13 802.11a channels
> > Feb 22 09:49:31 dirac kernel: phy0: Selected rate control algorithm 'iwl-4965-rs'
> >
> > now finished with it, will be deconfigured and rmmodded:
> >
> > Feb 23 03:05:23 dirac kernel: __dev_addr_discard: address leakage! da_users=1
> > Feb 23 03:05:23 dirac kernel: ACPI: PCI interrupt for device 0000:0c:00.0 disabled
> >
> > The modprobed again:
> >
> > Feb 23 03:05:35 dirac kernel: iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux, 1.1.17kds
> > Feb 23 03:05:35 dirac kernel: iwl4965: Copyright(c) 2003-2007 Intel Corporation
> > Feb 23 03:05:35 dirac kernel: ACPI: PCI Interrupt 0000:0c:00.0[A] -> GSI 17 (level, low) -> IRQ 17
> > Feb 23 03:05:35 dirac kernel: PCI: Setting latency timer of device 0000:0c:00.0 to 64
> > Feb 23 03:05:35 dirac kernel: iwl4965: Detected Intel Wireless WiFi Link 4965AGN
> > Feb 23 03:05:35 dirac kernel: iwl4965: Tunable channels: 11 802.11bg, 13 802.11a channels
> > Feb 23 03:05:35 dirac kernel: phy9: Selected rate control algorithm 'iwl-4965-rs'
> >
> > according to lspci -vvv, 0c:00.0 is:
> >
> > 0c:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN Network Connection (rev 61)
> > Subsystem: Intel Corporation Unknown device 1120
> > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
> > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- > > Latency: 0, Cache Line Size: 64 bytes
> > Interrupt: pin A routed to IRQ 379
> > Region 0: Memory at f9ffe000 (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 PME-Enable- DSel=0 DScale=0 PME-
> > Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+
> > Address: 00000000fee0300c Data: 4194
> > Capabilities: [e0] Express (v1) 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+
> > 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, Latency L0 <128ns, L1 <64us
> > ClockPM+ Suprise- LLActRep- BwNot-
> > LnkCtl: ASPM L0s Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
> > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
> > LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
> > Capabilities: [100] Advanced Error Reporting
> > Capabilities: [140] Device Serial Number d7-36-9b-ff-ff-e8-13-00
> > Kernel driver in use: iwl4965
> > Kernel modules: iwl4965
>
> (cc linux-wireless)
>
> What kernel version is this?
>
> Is this a regression from an earlier kenrel version? If so, which?

kernel 2.6.24
version 4.44.1.20 of the firmware.

The iwl4965 version is fairly ancient in mainline kernel: 1.1.17kds
Last time I looked, 1.2.24 was the latest version, but I never succeeded
in getting it to work (or compile?) in 2.6.24.

Don't know whether it's a regression - I've only been excercising my
wireless recently, although I'm sure I would have come across it before
when I was using 2.6.23 (which also comes version 0.1.15kds of the iwl4965
module, by the looks of it). Haven't rebooted yet since this problem
began, just in case this is just a temporary problem that needs debugging.

--
Tim Connors

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

> > Possibly because of the frequent renegotiating my iwl4965 card has
> > been making, it has now decided it's not going to pass packets
> > reliably until presumably next time I reboot.

Can't say anything about that.

> > I've noticed messages in syslog that I hadn't seen when things were
> > working fine. The problem possibly has only surfaced after rmmodding
> > the iwl4965 module, then remodding it. It stays with me through being
> > removed and modprobed again. It is being bonded in conjunction with a
> > physical ethernet, if that is relevant, although I think I reproduced
> > it when it was on its lonesome.

> > Feb 23 03:05:23 dirac kernel: __dev_addr_discard: address leakage! da_users=1

I've seen that before on other hardware but so far haven't managed to
track it down or even reliably reproduce it.

johannes

-----BEGIN PGP SIGNATURE-----
Comment: Johannes Berg (powerbook)

iQIVAwUAR8POzaVg1VMiehFYAQKhww//SEO+VtjEo+LA61LYh3MSt8w8TgUZ6kCv
Rv0yTBY98fhJ++XHyvjaUNq9fslu8eZD1TU1+oAW1ZjWnED08T wc2N5PT2Vvgcge
/WcpQbd1oxX7rbsuSyniTBOW7N7wVCyaO7YDaUr5yvlkGZM0IDJ n16Lk8zUXQHnS
o+fhBUURk/X3oAHiR761WuoxLBYzux/V+GDxxD8A440azGiuxxOixwxKiDmAlqyA
/1Vw+DJZ9jOM/l39xj25APMKT+65Lg8Mn61qnUE3OBQV1Q7CsS7qnQ68lfqpnHZ R
kJRrK8JvuvdQZf+q60zfsCoSPo4151bvKJmkou/B2dDdRzXTMwKDKURZYBgOSyyz
sSBL5l9WCEdCW2HQLB8Z0ewNl2UFzF1TvlrczfHrOnzbRNKqQQ o5ptj95ReVN13r
En0t/5WgTc2xO49Kb0MFFsJwy59ahk5KRj8/xhXbVeZELs6x0T3hu3C4XS1x3JnD
/qir5obFZZVPEehyfG/TlJ4X8J+XUzecx9FNNN/L8ugzZwAemMO53pBBSowhVpjT
fGXMRe9/9QV5nZGr4X4Fd/fmMEz/UzZryDrrevk/ge+JOp2CJGmT4mmE16DbIWMD
AxrXwbUAxdZS75HdtGL//NhcpWVQ+3gV7X+ghiZGLROA4Zt1JlRiZHT4a0Lnbbx6
mmklZ+J/UVI=
=9nnG
-----END PGP SIGNATURE-----

On Monday, February 25, 2008 10:48 PM, Tim Connors wrote:

> On Mon, 25 Feb 2008, Andrew Morton wrote:
>
>> On Tue, 26 Feb 2008 16:22:43 +1100 Tim Connors
> wrote:
>>
>>> Possibly because of the frequent renegotiating my iwl4965 card has
>>> been making, it has now decided it's not going to pass packets
>>> reliably until presumably next time I reboot.
>>>
>>> I've noticed messages in syslog that I hadn't seen when things were
>>> working fine. The problem possibly has only surfaced after
>>> rmmodding the iwl4965 module, then remodding it. It stays with me
>>> through being removed and modprobed again. It is being bonded in
>>> conjunction with a physical ethernet, if that is relevant, although
>>> I think I reproduced it when it was on its lonesome.
>>>
>>>
>>> Fresh after reboot:
>>>
>>> Feb 22 09:49:31 dirac kernel: iwl4965: Intel(R) Wireless
> WiFi Link 4965AGN driver for Linux, 1.1.17kds
>>> Feb 22 09:49:31 dirac kernel: iwl4965: Copyright(c) 2003-2007 Intel
>>> Corporation Feb 22 09:49:31 dirac kernel: ACPI: PCI Interrupt
> 0000:0c:00.0[A] -> GSI 17 (level, low) -> IRQ 17
>>> Feb 22 09:49:31 dirac kernel: PCI: Setting latency timer of device
>>> 0000:0c:00.0 to 64 Feb 22 09:49:31 dirac kernel: iwl4965: Detected
>>> Intel Wireless WiFi Link 4965AGN Feb 22 09:49:31 dirac kernel:
>>> ACPI: PCI Interrupt
> 0000:00:1b.0[A] -> GSI 21 (level, low) -> IRQ 21
>>> Feb 22 09:49:31 dirac kernel: PCI: Setting latency timer of device
>>> 0000:00:1b.0 to 64 Feb 22 09:49:31 dirac kernel: iwl4965: Tunable
>>> channels:
> 11 802.11bg, 13 802.11a channels
>>> Feb 22 09:49:31 dirac kernel: phy0: Selected rate control algorithm
>>> 'iwl-4965-rs'
>>>
>>> now finished with it, will be deconfigured and rmmodded:
>>>
>>> Feb 23 03:05:23 dirac kernel: __dev_addr_discard: address leakage!
>>> da_users=1 Feb 23 03:05:23 dirac kernel: ACPI: PCI interrupt for
>>> device 0000:0c:00.0 disabled
>>>
>>> The modprobed again:
>>>
>>> Feb 23 03:05:35 dirac kernel: iwl4965: Intel(R) Wireless
> WiFi Link 4965AGN driver for Linux, 1.1.17kds
>>> Feb 23 03:05:35 dirac kernel: iwl4965: Copyright(c) 2003-2007 Intel
>>> Corporation Feb 23 03:05:35 dirac kernel: ACPI: PCI Interrupt
> 0000:0c:00.0[A] -> GSI 17 (level, low) -> IRQ 17
>>> Feb 23 03:05:35 dirac kernel: PCI: Setting latency timer of device
>>> 0000:0c:00.0 to 64 Feb 23 03:05:35 dirac kernel: iwl4965: Detected
>>> Intel Wireless WiFi Link 4965AGN Feb 23 03:05:35 dirac kernel:
>>> iwl4965: Tunable channels:
> 11 802.11bg, 13 802.11a channels
>>> Feb 23 03:05:35 dirac kernel: phy9: Selected rate control algorithm
>>> 'iwl-4965-rs'
>>>
>>> according to lspci -vvv, 0c:00.0 is:
>>>
>>> 0c:00.0 Network controller: Intel Corporation PRO/Wireless
> 4965 AG or AGN Network Connection (rev 61)
>>> Subsystem: Intel Corporation Unknown device 1120
>>> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV-
> VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
>>> Status: Cap+ 66MHz- UDF- FastB2B- ParErr-
> DEVSEL=fast >TAbort- SERR-
>>> Latency: 0, Cache Line Size: 64 bytes
>>> Interrupt: pin A routed to IRQ 379
>>> Region 0: Memory at f9ffe000 (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 PME-Enable- DSel=0 DScale=0 PME-
>>> Capabilities: [d0] Message Signalled Interrupts: Mask-
>>> 64bit+ Queue=0/0 Enable+ Address: 00000000fee0300c
>>> Data: 4194 Capabilities: [e0] Express (v1) 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+
>>> 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, Latency L0 <128ns, L1 <64us
>>> ClockPM+ Suprise- LLActRep- BwNot-
>>> LnkCtl: ASPM L0s Enabled; RCB 64 bytes Disabled-
>>> Retrain- CommClk+ ExtSynch- ClockPM-
>>> AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s,
>>> Width x1, TrErr-
> Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
>>> Capabilities: [100] Advanced Error Reporting
>>> Capabilities: [140] Device Serial Number
>>> d7-36-9b-ff-ff-e8-13-00 Kernel driver in use: iwl4965
>>> Kernel modules: iwl4965
>>
>> (cc linux-wireless)
>>
>> What kernel version is this?
>>
>> Is this a regression from an earlier kenrel version? If so, which?
>
> kernel 2.6.24
> version 4.44.1.20 of the firmware.
>
> The iwl4965 version is fairly ancient in mainline kernel: 1.1.17kds
> Last time I looked, 1.2.24 was the latest version, but I never
> succeeded in getting it to work (or compile?) in 2.6.24.
>

You can use the latest iwlwifi driver with kernel 2.6.24 when using the
compat-wireless project (http://linuxwireless.org/en/users/Download).

You can also load the driver with debugging (modprobe iwl4965
debug=0x43fff) to get more info about what happens during module unload.

Reinette
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/