* rtl8192ce kernel panics since 3.17(?)
@ 2015-02-12 12:10 Johannes Löthberg
2015-02-12 16:38 ` Larry Finger
0 siblings, 1 reply; 6+ messages in thread
From: Johannes Löthberg @ 2015-02-12 12:10 UTC (permalink / raw)
To: linux-wireless
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Since sometime around version 3.16 or 3.17 I've been getting a lot of
occasional kernel panics related to my wifi driver. My laptop has a
Realtek RTL8188CE wireless card and uses the rtl8192ce driver.
I have pictures of what I think is two identical kernel panics, a couple
of days apart:
https://lh4.googleusercontent.com/yjwOnrDmioCwuC8FqIXlKMiBTOXddLyJkWTiInJoX2o=w421-h569-no
https://lh3.googleusercontent.com/-xM-1wSsVu4c/VKxDnlkgBbI/AAAAAAAAIng/HxtqgHgglHY/w421-h569-no/IMG_20150106_212020.jpg
It only seems to happen when I have several days of uptime on my laptop
and just use sleep all the time instead of shutting it down.
Also I have a picture of a kernel panic that is different from the
previous ones:
https://lh3.googleusercontent.com/-Hj06Csglpa0/VKrI1al6QbI/AAAAAAAAImk/VzhmN-dfSB0/w657-h486-no/IMG_20150105_182236.jpg
Not sure how to debug it really, but figured that sending in a report
would be worth a shot.
[Note: I'm not subscribed to the ML, so please CC me in replies.]
--
Sincerely,
Johannes Löthberg
PGP Key ID: 0x50FB9B273A9D0BB5
https://theos.kyriasis.com/~kyrias/
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: rtl8192ce kernel panics since 3.17(?)
2015-02-12 12:10 rtl8192ce kernel panics since 3.17(?) Johannes Löthberg
@ 2015-02-12 16:38 ` Larry Finger
2015-02-12 17:27 ` Johannes Löthberg
0 siblings, 1 reply; 6+ messages in thread
From: Larry Finger @ 2015-02-12 16:38 UTC (permalink / raw)
To: Johannes Löthberg, linux-wireless
On 02/12/2015 06:10 AM, Johannes Löthberg wrote:
> Since sometime around version 3.16 or 3.17 I've been getting a lot of occasional
> kernel panics related to my wifi driver. My laptop has a Realtek RTL8188CE
> wireless card and uses the rtl8192ce driver.
>
> I have pictures of what I think is two identical kernel panics, a couple of days
> apart:
>
> https://lh4.googleusercontent.com/yjwOnrDmioCwuC8FqIXlKMiBTOXddLyJkWTiInJoX2o=w421-h569-no
>
> https://lh3.googleusercontent.com/-xM-1wSsVu4c/VKxDnlkgBbI/AAAAAAAAIng/HxtqgHgglHY/w421-h569-no/IMG_20150106_212020.jpg
>
>
> It only seems to happen when I have several days of uptime on my laptop and just
> use sleep all the time instead of shutting it down.
>
> Also I have a picture of a kernel panic that is different from the previous ones:
>
> https://lh3.googleusercontent.com/-Hj06Csglpa0/VKrI1al6QbI/AAAAAAAAImk/VzhmN-dfSB0/w657-h486-no/IMG_20150105_182236.jpg
>
>
> Not sure how to debug it really, but figured that sending in a report would be
> worth a shot.
>
What kernel were you running when you made the photos? Use the command 'uname
-r'. When I get that information, I can then use the dump trace to determine the
locations of the oops.
Larry
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: rtl8192ce kernel panics since 3.17(?)
2015-02-12 16:38 ` Larry Finger
@ 2015-02-12 17:27 ` Johannes Löthberg
2015-02-12 18:55 ` Larry Finger
0 siblings, 1 reply; 6+ messages in thread
From: Johannes Löthberg @ 2015-02-12 17:27 UTC (permalink / raw)
To: linux-wireless, Larry Finger
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On 12/02, Larry Finger wrote:
>On 02/12/2015 06:10 AM, Johannes Löthberg wrote:
>>Since sometime around version 3.16 or 3.17 I've been getting a lot of occasional
>>kernel panics related to my wifi driver. My laptop has a Realtek RTL8188CE
>>wireless card and uses the rtl8192ce driver.
>>
>>I have pictures of what I think is two identical kernel panics, a couple of days
>>apart:
>>
>>https://lh4.googleusercontent.com/yjwOnrDmioCwuC8FqIXlKMiBTOXddLyJkWTiInJoX2o=w421-h569-no
>>
>>https://lh3.googleusercontent.com/-xM-1wSsVu4c/VKxDnlkgBbI/AAAAAAAAIng/HxtqgHgglHY/w421-h569-no/IMG_20150106_212020.jpg
>>
>>
>>It only seems to happen when I have several days of uptime on my laptop and just
>>use sleep all the time instead of shutting it down.
>>
>>Also I have a picture of a kernel panic that is different from the previous ones:
>>
>>https://lh3.googleusercontent.com/-Hj06Csglpa0/VKrI1al6QbI/AAAAAAAAImk/VzhmN-dfSB0/w657-h486-no/IMG_20150105_182236.jpg
>>
>>
>>Not sure how to debug it really, but figured that sending in a report would be
>>worth a shot.
>>
>
>What kernel were you running when you made the photos? Use the command
>'uname -r'. When I get that information, I can then use the dump trace
>to determine the locations of the oops.
>
>Larry
>
>
For the first photo it was 3.18.3 and for the second one it seems like
it should be 3.18.1 from looking at my package manager's log.
--
Sincerely,
Johannes Löthberg
PGP Key ID: 0x50FB9B273A9D0BB5
https://theos.kyriasis.com/~kyrias/
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: rtl8192ce kernel panics since 3.17(?)
2015-02-12 17:27 ` Johannes Löthberg
@ 2015-02-12 18:55 ` Larry Finger
2015-02-12 21:54 ` Johannes Löthberg
0 siblings, 1 reply; 6+ messages in thread
From: Larry Finger @ 2015-02-12 18:55 UTC (permalink / raw)
To: Johannes Löthberg, linux-wireless
On 02/12/2015 11:27 AM, Johannes Löthberg wrote:
> On 12/02, Larry Finger wrote:
>> On 02/12/2015 06:10 AM, Johannes Löthberg wrote:
>>> Since sometime around version 3.16 or 3.17 I've been getting a lot of occasional
>>> kernel panics related to my wifi driver. My laptop has a Realtek RTL8188CE
>>> wireless card and uses the rtl8192ce driver.
>>>
>>> I have pictures of what I think is two identical kernel panics, a couple of days
>>> apart:
>>>
>>> https://lh4.googleusercontent.com/yjwOnrDmioCwuC8FqIXlKMiBTOXddLyJkWTiInJoX2o=w421-h569-no
>>>
>>>
>>> https://lh3.googleusercontent.com/-xM-1wSsVu4c/VKxDnlkgBbI/AAAAAAAAIng/HxtqgHgglHY/w421-h569-no/IMG_20150106_212020.jpg
>>>
>>>
>>>
>>> It only seems to happen when I have several days of uptime on my laptop and just
>>> use sleep all the time instead of shutting it down.
>>>
>>> Also I have a picture of a kernel panic that is different from the previous
>>> ones:
>>>
>>> https://lh3.googleusercontent.com/-Hj06Csglpa0/VKrI1al6QbI/AAAAAAAAImk/VzhmN-dfSB0/w657-h486-no/IMG_20150105_182236.jpg
>>>
>>>
>>>
>>> Not sure how to debug it really, but figured that sending in a report would be
>>> worth a shot.
>>>
>>
>> What kernel were you running when you made the photos? Use the command 'uname
>> -r'. When I get that information, I can then use the dump trace to determine
>> the locations of the oops.
>>
>> Larry
>>
>>
>
> For the first photo it was 3.18.3 and for the second one it seems like it should
> be 3.18.1 from looking at my package manager's log.
OK, that makes more sense than your original report of problems starting with
3.16 or 3.17. That bug was fixed in 3.18.4.
Larry
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: rtl8192ce kernel panics since 3.17(?)
2015-02-12 18:55 ` Larry Finger
@ 2015-02-12 21:54 ` Johannes Löthberg
2015-02-12 22:51 ` Larry Finger
0 siblings, 1 reply; 6+ messages in thread
From: Johannes Löthberg @ 2015-02-12 21:54 UTC (permalink / raw)
To: Larry Finger; +Cc: linux-wireless
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On 12/02, Larry Finger wrote:
>OK, that makes more sense than your original report of problems
>starting with 3.16 or 3.17. That bug was fixed in 3.18.4.
>
Well, I'm rather sure that I had some panics in 3.17 due to it, but I
have no photographic evidence anymore alas. And d'oh, should have tried
a newer kernel before sending it in, was meaning to report it for a
while but never ended up to, sorry.
Any idea about the third kernel panic photo?
--
Sincerely,
Johannes Löthberg
PGP Key ID: 0x50FB9B273A9D0BB5
https://theos.kyriasis.com/~kyrias/
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: rtl8192ce kernel panics since 3.17(?)
2015-02-12 21:54 ` Johannes Löthberg
@ 2015-02-12 22:51 ` Larry Finger
0 siblings, 0 replies; 6+ messages in thread
From: Larry Finger @ 2015-02-12 22:51 UTC (permalink / raw)
To: linux-wireless
On 02/12/2015 03:54 PM, Johannes Löthberg wrote:
> On 12/02, Larry Finger wrote:
>> OK, that makes more sense than your original report of problems starting with
>> 3.16 or 3.17. That bug was fixed in 3.18.4.
>>
>
> Well, I'm rather sure that I had some panics in 3.17 due to it, but I have no
> photographic evidence anymore alas. And d'oh, should have tried a newer kernel
> before sending it in, was meaning to report it for a while but never ended up
> to, sorry.
>
> Any idea about the third kernel panic photo?
Trying to trace it back on my kernel leads to a nonsense location. If it happens
again, capture the trace as you did, then find the location in one of the rtl*
routines that crashed. In the picture you sent, that is
"_rtl_pci_interrupt+0x3d0" and that is in rtl_pci. To find the code section that
crashed, start in the kernel source directory and do the following:
gdb drivers/net/wireless/rtlwifi/rtl_pci.ko
l *_rtl_pci_interrupt+0x3d0
quit
Adjust the driver and location to match the new crash. Send me the output of the
"l" command.
Larry
^ permalink raw reply [flat|nested] 6+ messages in thread
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2015-02-12 12:10 rtl8192ce kernel panics since 3.17(?) Johannes Löthberg
2015-02-12 16:38 ` Larry Finger
2015-02-12 17:27 ` Johannes Löthberg
2015-02-12 18:55 ` Larry Finger
2015-02-12 21:54 ` Johannes Löthberg
2015-02-12 22:51 ` Larry Finger
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