Re: [uml-devel] uml_net zombie processes

[Richard Weinberger <richard@nod.at>]

Am 13.07.2015 um 17:08 schrieb Thomas Meyer:
> Am Montag, den 13.07.2015, 16:41 +0200 schrieb Richard Weinberger:
>> Am 13.07.2015 um 16:24 schrieb Thomas Meyer:
>>>> Yeah. And please add a dump_stack() to figure out where it was 
>>>> called.
>>>
>>> I think calling dump_stack() somehow changed the errno to 25?!
>>
>>>  
>>> +extern __attribute__((regparm(0))) void dump_stack(void);
>>
>> Hmm, maybe the regparm(0) kills your stack.
>> Anyway, how do you trigger the issue?
>> I tried here and don't see any zombie processes?
>> In my setup I run UML as non-root and tap0 is owned by root.
>> -> UML is unable to setup eth0.
>> But no zombies here.
> 
> I run UML as non-root user, tun is:
> 
> $ ll /dev/net
> insgesamt 0
> crw-rw----. 1 root zml-net 10, 200 13. Jul 14:49 tun
> 
> $ ll /usr/bin/uml_net
> -rwsr-x---. 1 root uml-net 31472 19. Aug 2014  /usr/bin/uml_net

And eth0=tuntap,tap?

Thanks,
//richard

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