2013-09-23 13:05:33

by Andrew Lutomirski

[permalink] [raw]
Subject: Intel 6300 crashes hard (3.11 regression?)

I've had a failure twice on 3.11.1-200.fc19.x86_64. I've never seen
it on earlier Fedora kernels or on 3.11-rc3. The computer hangs for a
minute or so. When it comes back, wireless doesn't work. rmmoding
and modprobing iwldvm doesn't help (it's at the bottom of the
attachment).

Even rebooting doesn't fix it unless I pull the battery. Otherwise
iwlwifi loads but wlan0 doesn't appear and the only log line is the
one saying that iwlwifi loaded.

The messages on startup are:

[ 11.440725] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't
have ASPM control
[ 11.440788] iwlwifi 0000:03:00.0: irq 51 for MSI/MSI-X
[ 11.455653] iwlwifi 0000:03:00.0: loaded firmware version 9.221.4.1
build 25532 op_mode iwldvm
[ 11.517924] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG enabled
[ 11.517930] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
[ 11.517932] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
[ 11.517934] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled
[ 11.517936] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R)
Ultimate-N 6300 AGN, REV=0x74
[ 11.519626] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S

(Both failures happened with pcie_aspm=force, but this is without it.
I want to see if disabling that option fixes it.)


Attachments:
iwl_hang_2.txt (81.12 kB)

2013-09-23 19:47:20

by Emmanuel Grumbach

[permalink] [raw]
Subject: Re: [Ilw] Intel 6300 crashes hard (3.11 regression?)

>>> I've had a failure twice on 3.11.1-200.fc19.x86_64. I've never seen it on
>>> earlier Fedora kernels or on 3.11-rc3. The computer hangs for a minute or so.
>>> When it comes back, wireless doesn't work. rmmoding and modprobing
>>> iwldvm doesn't help (it's at the bottom of the attachment).
>>>
>>> Even rebooting doesn't fix it unless I pull the battery. Otherwise iwlwifi loads
>>> but wlan0 doesn't appear and the only log line is the one saying that iwlwifi
>>> loaded.
>>>
>>> The messages on startup are:
>>>
>>> [ 11.440725] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't
>>> have ASPM control
>>> [ 11.440788] iwlwifi 0000:03:00.0: irq 51 for MSI/MSI-X
>>> [ 11.455653] iwlwifi 0000:03:00.0: loaded firmware version 9.221.4.1
>>> build 25532 op_mode iwldvm
>>> [ 11.517924] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG enabled
>>> [ 11.517930] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
>>> [ 11.517932] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING
>>> disabled
>>> [ 11.517934] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled
>>> [ 11.517936] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R)
>>> Ultimate-N 6300 AGN, REV=0x74
>>> [ 11.519626] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
>>>
>>> (Both failures happened with pcie_aspm=force, but this is without it.
>>> I want to see if disabling that option fixes it.)
>>
>> Please do and report back - what I can see here is that we kinda can't access the NIC - so I would be curious if pcie_aspm=force changes the game here.
>>
>
> It happened again. This time I got some stuff in the middle of the
> dump that I didn't notice last time:
>
> [ 1125.076283] iwlwifi 0000:03:00.0: Q 19 is active and mapped to fifo
> 2 ra_tid 0xa5a5 [90,1515870810]
> [ 1127.073531] iwlwifi 0000:03:00.0: Error sending REPLY_TXFIFO_FLUSH:
> time out after 2000ms.
> [ 1127.073544] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 143
> [ 1127.073550] iwlwifi 0000:03:00.0: Couldn't flush the AGG queue
> [ 1129.110029] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time
> out after 2000ms.
> [ 1129.110037] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 146
> [ 1129.110044] wlan0: HW problem - can not stop rx aggregation for
> 50:a7:33:27:30:78 tid 0
> [ 1131.107391] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time
> out after 2000ms.
> [ 1131.107399] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 149
> [ 1131.107405] wlan0: HW problem - can not stop rx aggregation for
> 50:a7:33:27:30:78 tid 1
> [ 1133.104739] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time
> out after 2000ms.
> [ 1133.104745] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 152
> [ 1133.104750] wlan0: HW problem - can not stop rx aggregation for
> 50:a7:33:27:30:78 tid 5
> [ 1135.102155] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time
> out after 2000ms.
> [ 1135.102160] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 155
> [ 1135.102163] wlan0: HW problem - can not stop rx aggregation for
> 50:a7:33:27:30:78 tid 6
> [ 1137.099675] iwlwifi 0000:03:00.0: Error sending REPLY_QOS_PARAM:
> time out after 2000ms.
> [ 1137.099682] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 158
> [ 1137.099686] iwlwifi 0000:03:00.0: Failed to update QoS
> [ 1139.097113] iwlwifi 0000:03:00.0: Error sending REPLY_RXON: time
> out after 2000ms.
> [ 1139.097120] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 161
> [ 1139.097124] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK on BSS (-110)
> [ 1141.094533] iwlwifi 0000:03:00.0: Error sending REPLY_RXON: time
> out after 2000ms.
> [ 1141.094589] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 164
> [ 1141.094633] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK on BSS (-110)
> [ 1141.314184] iwlwifi 0000:03:00.0: No space in command queue
> [ 1141.314259] iwlwifi 0000:03:00.0: Restarting adapter queue is full
> [ 1141.314305] iwlwifi 0000:03:00.0: Error sending REPLY_LEDS_CMD:
> enqueue_hcmd failed: -28
> [ 1143.091961] iwlwifi 0000:03:00.0: Error sending REPLY_RXON: time
> out after 2000ms.
> [ 1143.092016] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 165
> [ 1143.092060] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK on BSS (-110)
> [ 1145.090373] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues Q 0
> [ 1145.090450] iwlwifi 0000:03:00.0: Current SW read_ptr 142 write_ptr 143
> [ 1145.110262] iwl data: 00000000: 90 3b 0d a2 00 88 ff ff 50 3b 0d a2
> 00 88 ff ff .;......P;......
> [ 1145.130280] iwlwifi 0000:03:00.0: FH TRBs(0) = 0x5a5a5a5a
> [ 1145.149994] iwlwifi 0000:03:00.0: FH TRBs(1) = 0x5a5a5a5a
> [ 1145.169813] iwlwifi 0000:03:00.0: FH TRBs(2) = 0x5a5a5a5a
> [ 1145.189419] iwlwifi 0000:03:00.0: FH TRBs(3) = 0x5a5a5a5a
> [ 1145.208993] iwlwifi 0000:03:00.0: FH TRBs(4) = 0x5a5a5a5a
> [ 1145.228552] iwlwifi 0000:03:00.0: FH TRBs(5) = 0x5a5a5a5a
> [ 1145.248097] iwlwifi 0000:03:00.0: FH TRBs(6) = 0x5a5a5a5a
> [ 1145.267558] iwlwifi 0000:03:00.0: FH TRBs(7) = 0x5a5a5a5a
>

Just saw this:

[ 3030.922014] pci_pm_runtime_suspend():
hcd_pci_runtime_suspend+0x0/0x50 returns -16
[ 3116.219553] pci_pm_runtime_suspend():
hcd_pci_runtime_suspend+0x0/0x50 returns -16
[ 3208.606354] iwlwifi 0000:03:00.0: Error sending POWER_TABLE_CMD:
time out after 2000ms.

can it be that the PCI subsystem gets confused after suspend resume?

2013-09-23 18:21:35

by Andrew Lutomirski

[permalink] [raw]
Subject: Re: [Ilw] Intel 6300 crashes hard (3.11 regression?)

On Mon, Sep 23, 2013 at 5:01 PM, Grumbach, Emmanuel
<[email protected]> wrote:
>>
>> I've had a failure twice on 3.11.1-200.fc19.x86_64. I've never seen it on
>> earlier Fedora kernels or on 3.11-rc3. The computer hangs for a minute or so.
>> When it comes back, wireless doesn't work. rmmoding and modprobing
>> iwldvm doesn't help (it's at the bottom of the attachment).
>>
>> Even rebooting doesn't fix it unless I pull the battery. Otherwise iwlwifi loads
>> but wlan0 doesn't appear and the only log line is the one saying that iwlwifi
>> loaded.
>>
>> The messages on startup are:
>>
>> [ 11.440725] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't
>> have ASPM control
>> [ 11.440788] iwlwifi 0000:03:00.0: irq 51 for MSI/MSI-X
>> [ 11.455653] iwlwifi 0000:03:00.0: loaded firmware version 9.221.4.1
>> build 25532 op_mode iwldvm
>> [ 11.517924] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG enabled
>> [ 11.517930] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
>> [ 11.517932] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING
>> disabled
>> [ 11.517934] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled
>> [ 11.517936] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R)
>> Ultimate-N 6300 AGN, REV=0x74
>> [ 11.519626] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
>>
>> (Both failures happened with pcie_aspm=force, but this is without it.
>> I want to see if disabling that option fixes it.)
>
> Please do and report back - what I can see here is that we kinda can't access the NIC - so I would be curious if pcie_aspm=force changes the game here.
>

It happened again. This time I got some stuff in the middle of the
dump that I didn't notice last time:

[ 1125.076283] iwlwifi 0000:03:00.0: Q 19 is active and mapped to fifo
2 ra_tid 0xa5a5 [90,1515870810]
[ 1127.073531] iwlwifi 0000:03:00.0: Error sending REPLY_TXFIFO_FLUSH:
time out after 2000ms.
[ 1127.073544] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
write_ptr 143
[ 1127.073550] iwlwifi 0000:03:00.0: Couldn't flush the AGG queue
[ 1129.110029] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time
out after 2000ms.
[ 1129.110037] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
write_ptr 146
[ 1129.110044] wlan0: HW problem - can not stop rx aggregation for
50:a7:33:27:30:78 tid 0
[ 1131.107391] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time
out after 2000ms.
[ 1131.107399] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
write_ptr 149
[ 1131.107405] wlan0: HW problem - can not stop rx aggregation for
50:a7:33:27:30:78 tid 1
[ 1133.104739] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time
out after 2000ms.
[ 1133.104745] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
write_ptr 152
[ 1133.104750] wlan0: HW problem - can not stop rx aggregation for
50:a7:33:27:30:78 tid 5
[ 1135.102155] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time
out after 2000ms.
[ 1135.102160] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
write_ptr 155
[ 1135.102163] wlan0: HW problem - can not stop rx aggregation for
50:a7:33:27:30:78 tid 6
[ 1137.099675] iwlwifi 0000:03:00.0: Error sending REPLY_QOS_PARAM:
time out after 2000ms.
[ 1137.099682] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
write_ptr 158
[ 1137.099686] iwlwifi 0000:03:00.0: Failed to update QoS
[ 1139.097113] iwlwifi 0000:03:00.0: Error sending REPLY_RXON: time
out after 2000ms.
[ 1139.097120] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
write_ptr 161
[ 1139.097124] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK on BSS (-110)
[ 1141.094533] iwlwifi 0000:03:00.0: Error sending REPLY_RXON: time
out after 2000ms.
[ 1141.094589] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
write_ptr 164
[ 1141.094633] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK on BSS (-110)
[ 1141.314184] iwlwifi 0000:03:00.0: No space in command queue
[ 1141.314259] iwlwifi 0000:03:00.0: Restarting adapter queue is full
[ 1141.314305] iwlwifi 0000:03:00.0: Error sending REPLY_LEDS_CMD:
enqueue_hcmd failed: -28
[ 1143.091961] iwlwifi 0000:03:00.0: Error sending REPLY_RXON: time
out after 2000ms.
[ 1143.092016] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
write_ptr 165
[ 1143.092060] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK on BSS (-110)
[ 1145.090373] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues Q 0
[ 1145.090450] iwlwifi 0000:03:00.0: Current SW read_ptr 142 write_ptr 143
[ 1145.110262] iwl data: 00000000: 90 3b 0d a2 00 88 ff ff 50 3b 0d a2
00 88 ff ff .;......P;......
[ 1145.130280] iwlwifi 0000:03:00.0: FH TRBs(0) = 0x5a5a5a5a
[ 1145.149994] iwlwifi 0000:03:00.0: FH TRBs(1) = 0x5a5a5a5a
[ 1145.169813] iwlwifi 0000:03:00.0: FH TRBs(2) = 0x5a5a5a5a
[ 1145.189419] iwlwifi 0000:03:00.0: FH TRBs(3) = 0x5a5a5a5a
[ 1145.208993] iwlwifi 0000:03:00.0: FH TRBs(4) = 0x5a5a5a5a
[ 1145.228552] iwlwifi 0000:03:00.0: FH TRBs(5) = 0x5a5a5a5a
[ 1145.248097] iwlwifi 0000:03:00.0: FH TRBs(6) = 0x5a5a5a5a
[ 1145.267558] iwlwifi 0000:03:00.0: FH TRBs(7) = 0x5a5a5a5a


3.10 seems stable.

--Andy

2013-09-23 16:01:25

by Grumbach, Emmanuel

[permalink] [raw]
Subject: RE: [Ilw] Intel 6300 crashes hard (3.11 regression?)

>
> I've had a failure twice on 3.11.1-200.fc19.x86_64. I've never seen it on
> earlier Fedora kernels or on 3.11-rc3. The computer hangs for a minute or so.
> When it comes back, wireless doesn't work. rmmoding and modprobing
> iwldvm doesn't help (it's at the bottom of the attachment).
>
> Even rebooting doesn't fix it unless I pull the battery. Otherwise iwlwifi loads
> but wlan0 doesn't appear and the only log line is the one saying that iwlwifi
> loaded.
>
> The messages on startup are:
>
> [ 11.440725] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't
> have ASPM control
> [ 11.440788] iwlwifi 0000:03:00.0: irq 51 for MSI/MSI-X
> [ 11.455653] iwlwifi 0000:03:00.0: loaded firmware version 9.221.4.1
> build 25532 op_mode iwldvm
> [ 11.517924] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG enabled
> [ 11.517930] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
> [ 11.517932] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING
> disabled
> [ 11.517934] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled
> [ 11.517936] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R)
> Ultimate-N 6300 AGN, REV=0x74
> [ 11.519626] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
>
> (Both failures happened with pcie_aspm=force, but this is without it.
> I want to see if disabling that option fixes it.)

Please do and report back - what I can see here is that we kinda can't access the NIC - so I would be curious if pcie_aspm=force changes the game here.


2013-09-23 18:24:20

by Grumbach, Emmanuel

[permalink] [raw]
Subject: RE: [Ilw] Intel 6300 crashes hard (3.11 regression?)

> >>
> >> I've had a failure twice on 3.11.1-200.fc19.x86_64. I've never seen
> >> it on earlier Fedora kernels or on 3.11-rc3. The computer hangs for a
> minute or so.
> >> When it comes back, wireless doesn't work. rmmoding and modprobing
> >> iwldvm doesn't help (it's at the bottom of the attachment).
> >>
> >> Even rebooting doesn't fix it unless I pull the battery. Otherwise
> >> iwlwifi loads but wlan0 doesn't appear and the only log line is the
> >> one saying that iwlwifi loaded.
> >>
> >> The messages on startup are:
> >>
> >> [ 11.440725] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't
> >> have ASPM control
> >> [ 11.440788] iwlwifi 0000:03:00.0: irq 51 for MSI/MSI-X
> >> [ 11.455653] iwlwifi 0000:03:00.0: loaded firmware version 9.221.4.1
> >> build 25532 op_mode iwldvm
> >> [ 11.517924] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG enabled
> >> [ 11.517930] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
> >> [ 11.517932] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING
> >> disabled
> >> [ 11.517934] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled
> >> [ 11.517936] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R)
> >> Ultimate-N 6300 AGN, REV=0x74
> >> [ 11.519626] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
> >>
> >> (Both failures happened with pcie_aspm=force, but this is without it.
> >> I want to see if disabling that option fixes it.)
> >
> > Please do and report back - what I can see here is that we kinda can't
> access the NIC - so I would be curious if pcie_aspm=force changes the game
> here.
> >
>
> It happened again. This time I got some stuff in the middle of the dump that
> I didn't notice last time:
>
> [ 1125.076283] iwlwifi 0000:03:00.0: Q 19 is active and mapped to fifo
> 2 ra_tid 0xa5a5 [90,1515870810]
> [ 1127.073531] iwlwifi 0000:03:00.0: Error sending REPLY_TXFIFO_FLUSH:
> time out after 2000ms.
> [ 1127.073544] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 143 [ 1127.073550] iwlwifi 0000:03:00.0: Couldn't flush the AGG
> queue [ 1129.110029] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA:
> time out after 2000ms.
> [ 1129.110037] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 146 [ 1129.110044] wlan0: HW problem - can not stop rx
> aggregation for
> 50:a7:33:27:30:78 tid 0
> [ 1131.107391] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time out
> after 2000ms.
> [ 1131.107399] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 149 [ 1131.107405] wlan0: HW problem - can not stop rx
> aggregation for
> 50:a7:33:27:30:78 tid 1
> [ 1133.104739] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time out
> after 2000ms.
> [ 1133.104745] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 152 [ 1133.104750] wlan0: HW problem - can not stop rx
> aggregation for
> 50:a7:33:27:30:78 tid 5
> [ 1135.102155] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time out
> after 2000ms.
> [ 1135.102160] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 155 [ 1135.102163] wlan0: HW problem - can not stop rx
> aggregation for
> 50:a7:33:27:30:78 tid 6
> [ 1137.099675] iwlwifi 0000:03:00.0: Error sending REPLY_QOS_PARAM:
> time out after 2000ms.
> [ 1137.099682] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 158 [ 1137.099686] iwlwifi 0000:03:00.0: Failed to update QoS [
> 1139.097113] iwlwifi 0000:03:00.0: Error sending REPLY_RXON: time out after
> 2000ms.
> [ 1139.097120] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 161 [ 1139.097124] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK
> on BSS (-110) [ 1141.094533] iwlwifi 0000:03:00.0: Error sending REPLY_RXON:
> time out after 2000ms.
> [ 1141.094589] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 164 [ 1141.094633] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK
> on BSS (-110) [ 1141.314184] iwlwifi 0000:03:00.0: No space in command
> queue [ 1141.314259] iwlwifi 0000:03:00.0: Restarting adapter queue is full [
> 1141.314305] iwlwifi 0000:03:00.0: Error sending REPLY_LEDS_CMD:
> enqueue_hcmd failed: -28
> [ 1143.091961] iwlwifi 0000:03:00.0: Error sending REPLY_RXON: time out after
> 2000ms.
> [ 1143.092016] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 135
> write_ptr 165 [ 1143.092060] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK
> on BSS (-110) [ 1145.090373] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues
> Q 0 [ 1145.090450] iwlwifi 0000:03:00.0: Current SW read_ptr 142 write_ptr
> 143 [ 1145.110262] iwl data: 00000000: 90 3b 0d a2 00 88 ff ff 50 3b 0d a2
> 00 88 ff ff .;......P;......
> [ 1145.130280] iwlwifi 0000:03:00.0: FH TRBs(0) = 0x5a5a5a5a [ 1145.149994]
> iwlwifi 0000:03:00.0: FH TRBs(1) = 0x5a5a5a5a [ 1145.169813] iwlwifi
> 0000:03:00.0: FH TRBs(2) = 0x5a5a5a5a [ 1145.189419] iwlwifi 0000:03:00.0: FH
> TRBs(3) = 0x5a5a5a5a [ 1145.208993] iwlwifi 0000:03:00.0: FH TRBs(4) =
> 0x5a5a5a5a [ 1145.228552] iwlwifi 0000:03:00.0: FH TRBs(5) = 0x5a5a5a5a [
> 1145.248097] iwlwifi 0000:03:00.0: FH TRBs(6) = 0x5a5a5a5a [ 1145.267558]
> iwlwifi 0000:03:00.0: FH TRBs(7) = 0x5a5a5a5a
>
>
> 3.10 seems stable.
>

Hmm.... Is bisection an option?
I don't really see any change in our driver that could cause that, but I'll need to check a bit more.