[vlc-devel] vlc bug/patch (Linux libvlccore): might hang in vlc_getProxyUrl() / waitpid()

[David Fuhrmann]

> Am 15.12.2016 um 08:45 schrieb Rémi Denis-Courmont <remi at remlab.net>:
> 
> On December 15, 2016 12:51:24 AM GMT+02:00, Marvin Scholz <epirat07 at gmail.com> wrote:
>> On 14 Dec 2016, at 21:33, Rémi Denis-Courmont wrote:
>> 
>>> Le tiistaina 13. joulukuuta 2016, 10.53.53 EET Andreas Luik a écrit :
>>>> Hello,
>>>> 
>>>> bug report for vlc-2.1.6 (also in latest 2.2.4): we use libvlccore
>> in 
>>>> one
>>>> thread of our multi-threaded application, and observe the function
>>>> vlc_getProxyUrl() to (often) hang forever in this loop:
>>>> 
>>>> while (waitpid(pid, &(int){ 0 }, 0) == -1);
>>>> 
>>>> The reason for this is that another thread might have already
>> handled 
>>>> the
>>>> wait(), and the process "pid" does not exist anymore, resulting in
>>>> waitpid(pid) returning -1 (with errno==ECHILD) forever.
>>> 
>>> This has already been discussed several years ago and the conclusion 
>>> was that
>>> this cannot be fixed in safe race-free manner in LibVLC. You need to 
>>> fix
>>> whatever brain-damaged code path is stealing PIDs from LibVLC.
>> 
>> Sorry but "brain-damaged" is really inappropriate tone IMHO.
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> 
> I disagree and I do not share your like of political correctness. Also I think your systematic picking on me of late is totally inappropriate and amounts to harrassment now.
> 
> As a consequence, you are now on my discretionary ignore-list.

I agree with Marvin. And I think your response is even more inappropriate.

Best,
David