Bug#850806: [pulseaudio] pulseaudio hangs in "context_autospawn"

[Bogdan Vatra]

On marți, 10 ianuarie 2017 17:24:59 EET Felipe Sateler wrote:
> Control: retitle -1 pulseaudio: hangs if dbus is malfunctioning
> Control: tags -1 - moreinfo
> 
> On 10 January 2017 at 15:51, Bogdan Vatra <bogdan.vatra at kdab.com> wrote:
> > On marți, 10 ianuarie 2017 20:01:29 EET Bogdan Vatra wrote:
> >> On marți, 10 ianuarie 2017 19:47:44 EET Bogdan Vatra wrote:
> >> > Hi,
> >> > 
> >> > On marți, 10 ianuarie 2017 14:21:02 EET Felipe Sateler wrote:
> >> > > On 10 January 2017 at 12:59, Bogdan Vatra <bogdan.vatra at kdab.com> 
wrote:
> >> > > > Hi,
> >> > > > 
> >> > > > Attached, but there is not to much in it ...
> >> > > > 
> >> > > > BTW, immediately aster I'm installing pulseaudio a few (3-4)
> >> > > > instances
> >> > > > are
> >> > > > spawn instantly.
> >> > > 
> >> > > Wow, that hangs pretty fast. I'm guessing it hangs while trying to
> >> > > acquire high-priority scheduling.
> >> > > 
> >> > > The initial bug did not report the architecture, which one it is? Are
> >> > > you using a debian-provided kernel or a custom-built one?
> >> > > 
> >> > > Could you please (after installing pulseaudio-dbgsym), run under gdb
> >> > > and present the trace of where it hangs? Note this is different from
> >> > > the backtrace you already showed, as that is from the client, and we
> >> > > want the one from the server.
> >> > 
> >> > I strace it and judging from the log it doesn't seem to hang.
> >> > Anyway I attached for you the gdb log as you requested.
> >> 
> >> Sorry, I forgot to answer the arch & kernel questions :)
> >> I'm using debian amd64 with debian-provided kernel (I'm way too lazy to
> >> build my own).
> >> 
> >> BogDan.
> > 
> > Ah, I was wrong, it ~hangs (actually it waits 25s for every call) in
> > rtkit_make_high_priority, when it calls
> > dbus_connection_send_with_reply_and_block ....
> > and it happens because rtkit fails to start :(
> 
> Right, so it appears the cause is rtkit failing. Still, pulseaudio
> should not hang when rtkit cannot start.
> 
> As a workaround, you might try disabling high-priority and
> realtime-scheduling in /etc/pulse/daemon.conf (although that will
> probably give you suboptimal performance).
> 

I completely removed it, until I figure out whats wrong with rtkit :)

>
> Could you please report this bug upstream at
> https://bugs.freedesktop.org/enter_bug.cgi ?

Done https://bugs.freedesktop.org/show_bug.cgi?id=99356 !

Cheers,
BogDan.