[Dnsmasq-discuss] CPU spin in master

Simon Kelley simon at thekelleys.org.uk
Mon Jan 4 17:03:52 GMT 2016


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Yes, the fix is in test3. Can you build with debug symbols

make CFLAGS=-g


and run under gdb, to find where it's spinning?


Cheers,

Simon


On 04/01/16 17:01, Uwe Schindler wrote:
> Hi,
> 
> ALARM: I compiled "2.76test3" and now it is spinning with 100% CPU
> on my box, box responds slow or not at all on DNS query. Was the
> fix included in "test3"? I updated from 2.75 to 2.76test3 because
> of the previously mentioned wildcard dnssec issue.
> 
> Uwe
> 
> ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen 
> http://www.thetaphi.de eMail: uwe at thetaphi.de
> 
> 
>> -----Original Message----- From: Dnsmasq-discuss
>> [mailto:dnsmasq-discuss- bounces at lists.thekelleys.org.uk] On
>> Behalf Of Simon Kelley Sent: Monday, January 04, 2016 5:15 PM To:
>> dnsmasq-discuss at lists.thekelleys.org.uk Subject: Re:
>> [Dnsmasq-discuss] CPU spin in master
>> 
> Think that one's fixed then :) Many thanks.
> 
> 
> Simon.
> 
> 
> On 03/01/16 10:42, Kevin Darbyshire-Bryant wrote:
>>>> Router survived the night. No obvious problems noted :-)
>>>> 
>>>> -- Cheers,
>>>> 
>>>> Kevin Sent from my phone, apologies for brevity, spelling &
>>>> top posting
>>>> 
>>>>> On 2 Jan 2016, at 17:20, Kevin Darbyshire-Bryant 
>>>>> <kevin at darbyshire-bryant.me.uk> wrote:
>>>>> 
>>>>> 
>>>>> 
>>>>>> On 01/01/16 20:27, Simon Kelley wrote:
>>>>>>> On 01/01/16 11:28, Kevin Darbyshire-Bryant wrote: Hi
>>>>>>> Simon,
>>>>>>> 
>>>>>>> So this is a pretty vague report of something lurking
>>>>>>> in very recent code.#
>>>>>> It's pretty good really. I stared at the ARP-caching code
>>>>>> and found a fault in the linked list code that could
>>>>>> introduce a cycle and create exactly the symptoms you're
>>>>>> seeing.
>>>>>> 
>>>>>> 
>>>>>> Git HEAD or 2.76test2 should do it. Please could you try
>>>>>> it?
>>>>> It's compiling as I type - will report back :-)
>>>>>> 
>>>>>> 
>>>>>> And many thanks for testing my new code!
>>>>> Well if we all played it safe and avoided the bleeding
>>>>> edge stuff nothing would get spotted & fixed would it :-)
>>>>> Someone has to try and I'd hardly regard my home router as
>>>>> life critical (although my niece would have a different
>>>>> opinion on that if she were visiting)
>>>>> 
>>>>> Thanks,
>>>>> 
>>>>> Kevin
>>>>> 
>>>>> 
>>>>> _______________________________________________ Dnsmasq-
> discuss
>>>>> mailing list Dnsmasq-discuss at lists.thekelleys.org.uk 
>>>>> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
>>>>>
>>>>>
>>>>>
>>>>> 
_______________________________________________ Dnsmasq-
> discuss
>>>>> mailing list Dnsmasq-discuss at lists.thekelleys.org.uk 
>>>>> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
>>
>>
>>>>> 
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