[tor-bugs] #22255 [Core Tor/Tor]: Frequent OOM kills of tor process

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#22255: Frequent OOM kills of tor process
--------------------------+------------------------------------
 Reporter:  DeS           |          Owner:
     Type:  defect        |         Status:  new
 Priority:  High          |      Milestone:  Tor: 0.3.0.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Major         |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+------------------------------------

Comment (by DeS):

 So after I got Munin installed I waited.
 Yesterday two other OOMs occured:
 {{{
 Mon Mai 29 16:06:07 CEST 2017 Process tor1 is not running -> starting
 Mon Mai 29 17:20:01 CEST 2017 Process tor2 is not running -> starting
 }}}

 Syslog:
 {{{
 May 29 16:05:51 tor1 kernel: [502910.776183] Out of memory: Kill process
 53045 (tor) score 32 or sacrifice child
 May 29 17:17:07 tor1 kernel: [507187.634566] Out of memory: Kill process
 53165 (tor) score 25 or sacrifice child
 }}}
 Unfortunatley munin was not too successfull. It died when things got
 interessting and just lived very shortly between both occurences.
 https://trac.torproject.org/projects/tor/attachment/ticket/22255/Screenshot_2017-05-30_20-11-49.png

 But I got you the logs from SMEM and cat /proc/meminfo.
 SMEM
 https://trac.torproject.org/projects/tor/attachment/ticket/22255/SMEM_Mo.log
 cat /proc/meminfo
 https://trac.torproject.org/projects/tor/attachment/ticket/22255/PROC_MEMINFO_Mon.log

 Hope this helps.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22255#comment:36>
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