Linux IEEE 802.15.4 and 6LoWPAN development
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From: Simon Vincent <simon.vincent@xsilon.com>
To: Alexander Aring <alex.aring@gmail.com>
Cc: linux-wpan@vger.kernel.org
Subject: Re: Kernel crash when using multiple interfaces
Date: Tue, 19 May 2015 12:18:24 +0100	[thread overview]
Message-ID: <555B1C00.20900@xsilon.com> (raw)
In-Reply-To: <20150518162727.GD749@omega>

Hi Alex,

I am not sure why it was crashing yesterday. I have done a clean build 
today and it looks fine.
I would proceed with your patch and I will let you know if I see any 
problems in the future.

- Simon

On 18/05/15 17:27, Alexander Aring wrote:
> On Mon, May 18, 2015 at 05:37:12PM +0200, Alexander Aring wrote:
>> Hi,
>>
>> On Mon, May 18, 2015 at 04:05:38PM +0100, Simon Vincent wrote:
>>> With your patch I get either a "bad paging request" or a NULL pointer
>>> dereference crash at startup. I have not had any problems with my patch.
>>>
>>> Here are two stack traces I get.
>>>
>>> [   12.223057] [<c04da1b8>] (ieee802154_stop_queue) from [<c04d6d64>]
>>>
>>> or
>>>
>>> [   12.548824] [<c04da1b8>] (ieee802154_stop_queue) from [<c04d6d64>]
>> Both crashes in ieee802154_stop_queue, but we don't changed anything
>> which should affect the ieee802154_stop_queue in my or your fix.
>>
> Ah, it could be that it failed in ieee802154_tx after calling
> ieee802154_stop_queue. Are you sure that you don't miss some & for
> handling with pointers and then we have some invalid address?
>
> - Alex


  reply	other threads:[~2015-05-19 11:18 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-15 12:54 Kernel crash when using multiple interfaces Simon Vincent
2015-05-15 14:20 ` Alexander Aring
2015-05-15 15:02   ` Simon Vincent
2015-05-15 15:23     ` Alexander Aring
2015-05-16 15:33     ` Alexander Aring
2015-05-18 10:57       ` Simon Vincent
2015-05-18 14:00         ` Alexander Aring
2015-05-18 15:05           ` Simon Vincent
2015-05-18 15:37             ` Alexander Aring
2015-05-18 16:27               ` Alexander Aring
2015-05-19 11:18                 ` Simon Vincent [this message]
2015-05-15 15:28 ` Alexander Aring

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