[asterisk-bugs] [JIRA] (ASTERISK-24152) memory leak and segfault with in libpthread-2.17.so

[Matt Jordan (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-24152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=221805#comment-221805 ] 

Matt Jordan commented on ASTERISK-24152:
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Unfortunately, valgrind wasn't able to process the number of threads you had on your system. The errors it did push out to the log were not memory leaks, so much as conditional jumps/moves in {{libmyodbc}}, {{libpj}}, or {{libspeex}}. So no, that did not show the memory leak.

Asterisk's MALLOC_DEBUG will only dump out the leaked items on exit if you tell it to do so via the CLI commands. There will be items leaked on exit; those are generally harmless (if annoying). A systemic memory leak would hopefully show up via that.

That being said, if valgrind isn't outputting it, it's doubtful that MALLOC_DEBUG will catch it.

You may be best off attempting to determine which call flow increases the memory leak, and then replicating that under valgrind.

> memory leak and segfault with in libpthread-2.17.so
> ---------------------------------------------------
>
>                 Key: ASTERISK-24152
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-24152
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General, Resources/res_pjsip
>    Affects Versions: 12.4.0
>         Environment: 12.4.0 
> Ubuntu 13.10
>            Reporter: Yuriy Gorlichenko
>            Assignee: Rusty Newton
>         Attachments: backtrace_bt_full.txt, backtrace.txt, memsummary_hour.txt, memsummary_start.txt, mmlog, valgrind.txt
>
>
> Hello. I have issue with asterisk 12.4.0 with memory leak.
> I have installed asterisk 12.4.0 at Ubuntu 13.10 with realtime chan_sip and pjsip modules (at diffrent ports: chan_sip used as trunk channel and pjsip runs as client side).
> I see at syslog that my system fails futh segfault:
> kernel: [17857.689103] asterisk[23250]: segfault at 2cf ip 00007ff84a294164 sp 00007ff79aeb75a0 error 4 in libpthread-2.17.so[7ff84a28b000+17000]
> Then i open "top" appliation and monitor memory that used by asterisk. I monitored it at 1.5 hour and all this time memory usage grows (number of calls at one time always 2-5). So at start I see 3,3% of usage and then after 1.3 hour I see 11,5% usage.
> I recompiled my asterisk with MALLOC_DEBUG and use from asterisk CLI "memory show summary" at start and after hour of work.



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