Bug 48779

Summary:	padsp makes VLC media player (actually freopen()) crash
Product:	PulseAudio	Reporter:	Remi Denis-Courmont <courmisch>
Component:	tools	Assignee:	pulseaudio-bugs
Status:	RESOLVED MOVED	QA Contact:	pulseaudio-bugs
Severity:	normal
Priority:	medium	CC:	lennart
Version:	unspecified
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Remi Denis-Courmont 2012-04-16 11:13:02 UTC

Start VLC under padsp on Linux:
# padsp vlc -Idummy vlc://quit
VLC media player 2.0.1 Twoflower (revision 2.0.1-0-gf432547)
Segmentation fault

The same process runs and exits fine without padsp. In fact, even this trivial and obviously correct piece of C code crashes with padsp while calling glibc freopen():
----8<--------8<--------8<--------8<--------8<--------8<----
#include <stdio.h>
#include <stdlib.h>

int main(void)
{
        FILE *stream;

        stream = fopen("/dev/null", "w+t");
        if (stream == NULL)
                abort();
        stream = freopen("/dev/null", "w+t", stream);
        if (stream == NULL)
                abort();
        fclose(stream);
        return 0;
}
---->8-------->8-------->8-------->8-------->8-------->8----

I suspect the root cause is similar to this (Firefox bug): https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/810214/comments/8

Comment 1 Felipe Sateler 2014-04-25 22:11:29 UTC

I cannot reproduce this problem either with the vlc command or the test program.

Comment 2 GitLab Migration User 2018-07-30 09:37:47 UTC

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/issues/60.

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