sorry can u make some simplesty in your mail date and mail and why all that
you can divided all make link for each part
like link has message
link has "> > bad start (segfault):> > [2015-04-28 15:56:53] INFO main/main Icecast 2.4.1 server started
> > [2015-04-28 15:56:53] DBUG yp/yp_recheck_config Updating YP
> configuration
> > [2015-04-28 15:56:53] INFO connection/get_ssl_certificate No SSL
> > capability
> > [2015-04-28 15:56:53] INFO yp/yp_update_thread YP update thread
started
> > [2015-04-28 15:56:53] INFO source/source_fallback_file mountpoint
> > /geen-uitzending.mp3 is reserved
> > [2015-04-28 15:56:53] DBUG connection/connection_complete_source
> > sources count is 0
> > [2015-04-28 15:56:53] WARN format/format_get_type Unsupported or
> > legacy stream type: "audio/mpeg". Falling back to generic
minimal
> > handler for best effort.
> > [2015-04-28 15:56:53] DBUG connection/connection_complete_source
> > source is ready to start
> > [2015-04-28 15:56:53] DBUG source/source_init Source creation
complete
> > [2015-04-28 15:56:53] INFO stats/_stats_thread stats thread started
> > [2015-04-28 15:56:53] DBUG stats/process_source_event new source stat
> > /geen-uitzending.mp3
"
and so on bec when i see that mail i think its spam and itsnot and trying
to read it alot things i dont need to know alot info u can make it short
description
2015-05-03 21:00 GMT+02:00 <icecast-dev-request at xiph.org>:
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> Today's Topics:
>
> 1. Re: Segmentation fault issue with new install (Jan-Pieter Veen)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 30 Apr 2015 17:03:35 +0200
> From: Jan-Pieter Veen <Jan-Pieter at veenweb.nl>
> Subject: Re: [Icecast-dev] Segmentation fault issue with new install
> To: Thomas B. R?cker <thomas at ruecker.fi>
> Cc: icecast-dev <icecast-dev at xiph.org>
> Message-ID:
> <CAB=23ATuUOaaqrVQUc_m+4fBbD=oPKgZcwF7O=KB9Jn_+M> 8OQ at
mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> 2015-04-29 8:57 GMT+02:00 "Thomas B. R?cker" <thomas at
ruecker.fi>:
>
> > On 04/28/2015 02:27 PM, Jan-Pieter wrote:
> > > Hi all,
> > > see my reply inline.
> > > Cheers, Jan-Pieter
> > >
> > >
> > > 2015-04-26 7:23 GMT+02:00 "Thomas B. R?cker" <thomas
at ruecker.fi
> > > <mailto:thomas at ruecker.fi>>:
> > >
> > > On 04/25/2015 07:32 PM, Jan-Pieter wrote:
> > > > Hi all,
> > > >
> > > > I am a long-time user of Icecast, always without
problems.
> However
> > i
> > > > made a new setup using icecast 2.4.1 on a fresh and
quick CentOS
> > > VPS.
> > >
> > > EPEL package or from somewhere else?
> > >
> > > it's just a standard CentOS 6.6 release, no EPEL. Distri from
hosting
> > > provider. [root at h2429770 tmp]# uname -a
> > > Linux h2429770.stratoserver.net
<http://h2429770.stratoserver.net>
> > > 2.6.32-042stab103.6 #1 SMP Wed Jan 21 13:07:39 MSK 2015 x86_64
x86_64
> > > x86_64 GNU/Linux
> > >
> > >
> > >
> > > > The issue is that starting icecast gives a segmentation
fault at
> > > > around 80% of all starts. No core file nor a entry in
error.log
> > > is posted.
> > >
> > > Enable core dumps using "ulimit -c unlimited". The
PWD from where
> you
> > > start Icecast needs to be writeable.
> > >
> > >
> > > Even with ulimit -c unlimited and running from a writable PWD no
core
> > > is dumped.
> >
> > Seems it's a bit more involved on Centos6:
> > http://www.unixmen.com/how-to-enable-core-dumps-in-rhel6/
> > I've tried it successfully on a quick install of centos6 that
I've
> > compiled 2.4.2 on and am going to try with your config.
> > (As you don't use url-auth for sources, 2.4.1 is safe for you)
> >
> > I followed this steps, but still no core file with this type of
segfault.
> Other programs which segfaults do produce a core dump however. so bit
> strange...
>
>
> >
> > > > In the remaining 20% of the starts icecast start with no
problem.
> > > >
> > > > Contents of the error.log with a succesfull start (20%
of
> > > icecast starts):
> > > > [2015-04-25 21:08:40] INFO main/main Icecast 2.4.1
server
> started
> > > > [2015-04-25 21:08:40] INFO
connection/get_ssl_certificate No SSL
> > > > capability
> > > > [2015-04-25 21:08:40] INFO stats/_stats_thread stats
thread
> > started
> > > > [2015-04-25 21:08:40] INFO yp/yp_update_thread YP
update thread
> > > started
> > > > [2015-04-25 21:08:40] INFO source/source_fallback_file
> mountpoint
> > > > /geen-uitzending.mp3 is reserved
> > > > [2015-04-25 21:08:40] WARN format/format_get_type
Unsupported or
> > > > legacy stream type: "audio/mpeg". Falling back
to generic minimal
> > > > handler for best effort.
> > > > [2015-04-25 21:08:40] WARN source/source_fallback_file
> mountpoint
> > > > "/geen-uitzending.mp3" already reserved
> > > > [2015-04-25 21:08:40] INFO source/source_main listener
count on
> > > > /geen-uitzending.mp3 now 0
> > > >
> > > >
> > > > Contents of error.log with a segmentation fault direct
after
> start
> > > > (80% of icecast starts):
> > > > 2015-04-25 21:09:05] INFO main/main Icecast 2.4.1
server started
> > > > [2015-04-25 21:09:05] INFO
connection/get_ssl_certificate No SSL
> > > > capability
> > > > [2015-04-25 21:09:05] INFO yp/yp_update_thread YP
update thread
> > > started
> > > > [2015-04-25 21:09:05] INFO source/source_fallback_file
> mountpoint
> > > > /geen-uitzending.mp3 is reserved
> > > > [2015-04-25 21:09:05] WARN format/format_get_type
Unsupported or
> > > > legacy stream type: "audio/mpeg". Falling back
to generic minimal
> > > > handler for best effort.
> > > > [2015-04-25 21:09:05] INFO stats/_stats_thread stats
thread
> > started
> > >
> > > Can you attach your icecast.xml please (with passwords
removed)?
> > > This might help reproduce the problem.
> > >
> > >
> > > I attached icecast.xml. I also turned debug errorlog level on.
> > > Results with debug on:
> > >
> > > good start:
> > > [2015-04-28 15:56:39] INFO main/main Icecast 2.4.1 server
started
> > > [2015-04-28 15:56:39] DBUG yp/yp_recheck_config Updating YP
> > configuration
> > > [2015-04-28 15:56:39] INFO connection/get_ssl_certificate No SSL
> > > capability
> > > [2015-04-28 15:56:39] INFO stats/_stats_thread stats thread
started
> > > [2015-04-28 15:56:39] INFO yp/yp_update_thread YP update thread
> started
> > > [2015-04-28 15:56:39] INFO source/source_fallback_file
mountpoint
> > > /geen-uitzending.mp3 is reserved
> > > [2015-04-28 15:56:39] DBUG connection/connection_complete_source
> > > sources count is 0
> > > [2015-04-28 15:56:39] WARN format/format_get_type Unsupported or
> > > legacy stream type: "audio/mpeg". Falling back to
generic minimal
> > > handler for best effort.
> > > [2015-04-28 15:56:39] DBUG connection/connection_complete_source
> > > source is ready to start
> > > [2015-04-28 15:56:39] DBUG source/source_init Source creation
complete
> > > [2015-04-28 15:56:39] WARN source/source_fallback_file
mountpoint
> > > "/geen-uitzending.mp3" already reserved
> > > [2015-04-28 15:56:39] INFO source/source_main listener count on
> > > /geen-uitzending.mp3 now 0
> > > [2015-04-28 15:56:39] DBUG stats/modify_node_event update global
> > > sources (1)
> > > [2015-04-28 15:56:39] DBUG stats/process_source_event new source
stat
> > > /geen-uitzending.mp3
> > > [2015-04-28 15:56:39] DBUG stats/modify_node_event update global
> > > source_client_connections (1)
> > > [2015-04-28 15:56:39] DBUG stats/process_source_event new node
> > > listeners (0)
> > > [2015-04-28 15:56:39] DBUG stats/process_source_event new node
> > > listenurl (http://stream3.server7.nl:80/geen-uitzending.mp3)
> > > [2015-04-28 15:56:39] DBUG stats/modify_node_event update global
> > > source_total_connections (1)
> > > [2015-04-28 15:56:39] DBUG stats/process_source_event new node
> > > slow_listeners (0)
> > > [2015-04-28 15:56:39] DBUG stats/modify_node_event update
> > > "/geen-uitzending.mp3" listeners (0)
> > > [2015-04-28 15:56:39] DBUG stats/process_source_event new node
> > > listener_peak (0)
> > > [2015-04-28 15:56:39] DBUG stats/process_source_event new node
> > > stream_start (Tue, 28 Apr 2015 15:56:39 +0200)
> > > [2015-04-28 15:56:39] DBUG stats/process_source_event new node
> > > stream_start_iso8601 (2015-04-28T15:56:39+0200)
> > > [2015-04-28 15:56:39] DBUG stats/process_source_event new node
> > > total_bytes_read (0)
> > > [2015-04-28 15:56:39] DBUG stats/process_source_event new node
> > > total_bytes_sent (0)
> > > [2015-04-28 15:56:39] DBUG stats/modify_node_event update
> > > "/geen-uitzending.mp3" listeners (0)
> > > [2015-04-28 15:56:40] DBUG slave/_slave_thread checking master
stream
> > > list
> >
> > I currently suspect it's something interacting with the stats
thread and
> > the two identical fallbacks.
> >
> > Agree, seems to have something to do with stats thread. But I tested
also
> with dual fall back files. Same issue. See attached new configfile.
>
> >
> > >
> > > bad start (segfault):
> > > [2015-04-28 15:56:53] INFO main/main Icecast 2.4.1 server
started
> > > [2015-04-28 15:56:53] DBUG yp/yp_recheck_config Updating YP
> > configuration
> > > [2015-04-28 15:56:53] INFO connection/get_ssl_certificate No SSL
> > > capability
> > > [2015-04-28 15:56:53] INFO yp/yp_update_thread YP update thread
> started
> > > [2015-04-28 15:56:53] INFO source/source_fallback_file
mountpoint
> > > /geen-uitzending.mp3 is reserved
> > > [2015-04-28 15:56:53] DBUG connection/connection_complete_source
> > > sources count is 0
> > > [2015-04-28 15:56:53] WARN format/format_get_type Unsupported or
> > > legacy stream type: "audio/mpeg". Falling back to
generic minimal
> > > handler for best effort.
> > > [2015-04-28 15:56:53] DBUG connection/connection_complete_source
> > > source is ready to start
> > > [2015-04-28 15:56:53] DBUG source/source_init Source creation
complete
> > > [2015-04-28 15:56:53] INFO stats/_stats_thread stats thread
started
> > > [2015-04-28 15:56:53] DBUG stats/process_source_event new source
stat
> > > /geen-uitzending.mp3
> > >
> > >
> > >
> > >
> > >
> > >
> > > > Both the stream and the fallback file are .mp3 type. I
tried
> > > removing
> > > > the fallback entry. Then icecast starts always normally.
So it
> > seems
> > > > related to the .mp3 fallback.
> > > >
> > > > Also I tried to launch icecast with strace, and this
NEVER fails.
> > No
> > > > segmentation faults!
> > > >
> > > >
> > > > Any idea what's going wrong? Something going wrong
with timing
> on a
> > > > fast server?
> > >
> > > It sounds like you've found a race condition. I'm not
exactly sure
> > > what's happening though.
> > > By the log output something seems to be instantly accessing
the
> > > stream.
> > > Notice the order of the stats_thread is different in both.
> > >
> > >
> > > Yes this is the only interesting thing. The segfault only happens
when
> > > "INFO stats/_stats_thread stats thread started"
> > > is missing in the error.log. So with every succesful start this
line
> > > gets logged, and if the line is missing the segfault occurs.
> >
> > I suspect it's a very close race that might only occur on that
specific
> > configuration/virtualization.
> > In such case invasive things like strace and valgrind won't help
us. A
> > coredump might reveal something, but isn't guaranteed.
> >
> > What BTW confuses me is that you override the mountpoint configuration
> > to ogg/vorbis, but fall back to an mp3 file.
> >
> > Sorry my mistake. Tried changing things here, but did not change the
> behaviour. In the attached config file I set it all to mp3 and problem
> persists.
> Agree that it has probably something to do with virtualization platform. My
> VPS is running in a Virtuozzo container. However with other programs no
> issue at all. Looks to me still as a timing issue that somehow the stats
> thread is not started causing the segfault when loading the fallback
> stream. Maybe a small noop/sleep just before the statsthread will solve my
> issue...
>
>
> > > I also tried running using valgrind on advice of Philipp, but
when
> > > running with valgrind the segfault does not occur and icecast
starts
> > > normally... (same as with gdb)
> >
> > yeah, expected.
> >
> > I tried your config on a centos 6 machine and couldn't reproduce
it. How
> > many CPU cores / threads does it have?
> >
> > 4 cores/threads.
>
>
>
> >
> > Cheers
> >
> > Thomas
> >
> > Thanks!
> Jan-Pieter
>
> > _______________________________________________
> > Icecast-dev mailing list
> > Icecast-dev at xiph.org
> > http://lists.xiph.org/mailman/listinfo/icecast-dev
> >
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