[Icecast] Icecast crashing / terminated - out of memory

[Philipp Schafft]

Good morning,

first of all, thank you for your nice report. :)

On Sat, 2020-10-10 at 20:32 +1000, Damian wrote:
> Hi, needing some advice.
> I am running a backports version of icecast for Debian 10. I have
> found that with this version, the icecast server will usually run for
> about 7 days before it crashes. I found in the syslog that icecast
> gets terminated because it’s 'out of memory'.

There is currently a problem known in wolfssl which leads to Icecast
leaking memory. See [0], [1].

> This never happened on the standard (stable) version of icecast that I
> ran on Debian 9 installed via apt.
> I’ve added the relevant section of the syslog below. Any help on steps
> to take would be greatly appreciated.

That matches the picture.

Do you have TLS enabled?

Please provide a: cat /proc/$(pidof icecast2)/maps

This allows us to verify if it's the known problem. You can run the
command directly after you started Icecast.


With best regards,

> 
> Oct 10 10:36:40 systrum kernel: [925937.080802] 0 pages HighMem/MovableOnly
> Oct 10 10:36:40 systrum kernel: [925937.082050] 53826 pages reserved
> Oct 10 10:36:40 systrum kernel: [925937.083128] Tasks state (memory values in pages):
> Oct 10 10:36:40 systrum kernel: [925937.084663] [  pid  ]   uid  tgid total_vm      rss pgtables_bytes swapents oom_score_adj name
> [...]
> Oct 10 10:36:40 systrum kernel: [925937.165398] [   8095]   108  8095  1988579  1896082 15364096        0             0 icecast2
> [...]
> Oct 10 10:36:40 systrum kernel: [925937.210233] Out of memory: Kill process 8095 (icecast2) score 929 or sacrifice child
> Oct 10 10:36:40 systrum kernel: [925937.213229] Killed process 8095 (icecast2) total-vm:7954316kB, anon-rss:7584328kB, file-rss:0kB, shmem-rss:0kB
> 

[0] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=969018
[1] https://gitlab.xiph.org/xiph/icecast-server/-/issues/2391


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Philipp Schafft (CEO/Geschäftsführer) 
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