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Date: Wed, 18 Sep 2019 22:14:35 +0300
From: JS <js@...ect.lv>
To: musl@...ts.openwall.com
Subject: Re: ffmpeg segfault with musl

On Wed, Sep 18, 2019 at 9:32 PM Natanael Copa <ncopa@...inelinux.org> wrote:
>
> On Wed, 18 Sep 2019 16:22:06 +0300
> JS <js@...ect.lv> wrote:
>
> > Hello
> >
> > Does anybody have experience/solution with ffmpeg segfaulting with musl?
> > The issue happens when mpd tries to play wav file that is decoded by
> > ffmpeg. Tested with musl 1.1.17 and 1.1.23 and both old and new ffmpeg
> > versions. This does not happen with uClibc on the same hardware.
>
> FWIW, There is a known issue with mpd and thread stack size:
> https://gitlab.alpinelinux.org/alpine/aports/issues/4448
>
> I think i sent the patch upstream years ago, but the response was
> something like musl was explicitly not supported because there is no
> __MUSL__ define or similar.
>
> I remember this because there are only two projects that I can remember
> that has responded that musl is explicitly not supported when sending
> patches, and mpd is one of them.
>
> -nc

I've increased stack size and could run my custom mpd build on Alpine
VM without segfaults. I'll test it on real hardware later on. Thanks a
lot for your help!

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