[sr-dev] [SR-Users] Info: initialization of libssl 1.1.+ with PTHREAD_PROCESS_SHARED attribute for pthread mutex and rwlock

Wed Sep 18 16:35:56 CEST 2019

backtrace output:

(gdb) bt

#0  0x0000562fcc3544c0 in ?? ()

#1  0x0000562fcc354632 in ?? ()

#2  0x0000562fcc354974 in local_timer_run ()

#3  0x0000562fcc3fb256 in ?? ()

#4  0x0000562fcc3fb64c in tcp_receive_loop ()

#5  0x0000562fcc2acf52 in tcp_init_children ()

#6  0x0000562fcc1ad94a in main_loop ()

#7  0x0000562fcc1b4a7b in main ()

(gdb)

On Wed, Sep 18, 2019 at 10:01 AM Andrew Chen <achen at fuze.com> wrote:

> I'll look for the core.
>
> As part of our release process, I don't think we can release master branch
> of Kamailio.
>
> On Wed, Sep 18, 2019 at 9:54 AM Daniel-Constantin Mierla <
> miconda at gmail.com> wrote:
>
>> Hello,
>>
>> did you get core files? If yes, it would be good to see the gdb
>> bracktraces.
>>
>> Have you used the pre-loaded library workaround?
>>
>> The code was not backported to branch 5.2 yet, I wanted to wait a bit and
>> see if there are reports with good/bad results. If you want to use it, then
>> you have to install nightly builds from master branch (development version,
>> should be 5.3.0-pre1 at this moment).
>>
>> Cheers,
>> Daniel
>> On 18.09.19 15:26, Andrew Chen wrote:
>>
>> Hi Daniel,
>> Which apt repository can we get this workaround?   Today I noticed our
>> Kamailio 5.2.4 cored during one of our load test sessions:
>>
>> Wed Sep 18 09:31:14 2019] kamailio[26997]: segfault at 7f8501366000 ip
>> 00007f8501e58585 sp 00007fffd5c84248 error 4 in
>> libcrypto.so.1.1[7f8501dd4000+29b000]
>>
>> [Wed Sep 18 10:12:29 2019] kamailio[27110]: segfault at 7f1a8eea1000 ip
>> 00007f1a8f993585 sp 00007ffddc8848c8 error 4 in
>> libcrypto.so.1.1[7f1a8f90f000+29b000]
>>
>> [Wed Sep 18 10:12:43 2019] kamailio[11060]: segfault at 20 ip
>> 00007f0a85dac128 sp 00007fff6847aad0 error 4 in
>> libcrypto.so.1.1[7f0a85c40000+29b000]
>>
>> [Wed Sep 18 10:12:44 2019] kamailio[11059]: segfault at f0 ip
>> 00007f0a85cc43ea sp 00007fff6847a9e8 error 4 in
>> libcrypto.so.1.1[7f0a85c40000+29b000]
>>
>> [Wed Sep 18 10:13:02 2019] kamailio[11187]: segfault at 7f75e06c8000 ip
>> 00007f75e11ba585 sp 00007ffe29b47c88 error 4 in
>> libcrypto.so.1.1[7f75e1136000+29b000]
>>
>> [Wed Sep 18 10:13:17 2019] kamailio[11445]: segfault at 7f0f3743f000 ip
>> 00007f0f37f31585 sp 00007ffde54daa38 error 4 in
>> libcrypto.so.1.1[7f0f37ead000+29b000]
>>
>> [Wed Sep 18 10:13:36 2019] kamailio[11644]: segfault at 7f804309c000 ip
>> 00007f8043b8e585 sp 00007ffe89fe8228 error 4 in
>> libcrypto.so.1.1[7f8043b0a000+29b000]
>>
>> [Wed Sep 18 10:13:52 2019] kamailio[11799]: segfault at 7ff59c7e2000 ip
>> 00007ff59d2d4585 sp 00007ffd69d76bb8 error 4 in
>> libcrypto.so.1.1[7ff59d250000+29b000]
>>
>> [Wed Sep 18 10:13:52 2019] kamailio[11792]: segfault at 7ff59c7e2000 ip
>> 00007ff59d2d4585 sp 00007ffd69d76bb8 error 4 in
>> libcrypto.so.1.1[7ff59d250000+29b000]
>>
>> [Wed Sep 18 12:48:01 2019] kamailio[12066]: segfault at 7f22dca6d000 ip
>> 00007f22dd55f585 sp 00007fffbc766ab8 error 4 in
>> libcrypto.so.1.1[7f22dd4db000+29b000]
>>
>> [Wed Sep 18 12:48:14 2019] kamailio[16344]: segfault at 7f7cca42d000 ip
>> 00007f7ccaf1f585 sp 00007ffe99f16108 error 4 in
>> libcrypto.so.1.1[7f7ccae9b000+29b000]
>>
>> [Wed Sep 18 12:48:32 2019] kamailio[16708]: segfault at 7fb309141000 ip
>> 00007fb309c33585 sp 00007ffd07a5f3c8 error 4 in
>> libcrypto.so.1.1[7fb309baf000+29b000]
>>
>> [Wed Sep 18 12:48:49 2019] kamailio[16824]: segfault at f0 ip
>> 00007fc59095b3ea sp 00007ffe58a490b8 error 4 in
>> libcrypto.so.1.1[7fc5908d7000+29b000]
>>
>> [Wed Sep 18 12:49:04 2019] kamailio[16956]: segfault at 7fcc22e58000 ip
>> 00007fcc2394a585 sp 00007fffa9c52258 error 4 in
>> libcrypto.so.1.1[7fcc238c6000+29b000]
>>
>> [Wed Sep 18 12:49:04 2019] kamailio[16945]: segfault at f0 ip
>> 00007fcc2394a3ea sp 00007fffa9c52128 error 4 in
>> libcrypto.so.1.1[7fcc238c6000+29b000]
>>
>> [Wed Sep 18 12:49:16 2019] kamailio[17244]: segfault at 7f586ed20000 ip
>> 00007f586f812585 sp 00007ffeae1adcd8 error 4 in
>> libcrypto.so.1.1[7f586f78e000+29b000]
>>
>> [Wed Sep 18 12:49:33 2019] kamailio[17431]: segfault at 8 ip
>> 0000562fcc44c5d5 sp 00007ffe825c9dd0 error 4 in
>> kamailio[562fcc17c000+4a2000]
>>
>> [Wed Sep 18 12:49:33 2019] kamailio[17386]: segfault at 10 ip
>> 00007f96c3735c3e sp 00007ffe825ca270 error 4 in
>> dialog.so[7f96c36d6000+be000]
>>
>> [Wed Sep 18 12:49:33 2019] kamailio[17423]: segfault at 0 ip
>> 0000562fcc3544c0 sp 00007ffe825ca1f0 error 6 in
>> kamailio[562fcc17c000+4a2000]
>>
>> [Wed Sep 18 12:49:33 2019] kamailio[17378]: segfault at 0 ip
>> 00007f96c5dd099f sp 00007ffe825c98e0 error 4 in tm.so[7f96c5da5000+13f000]
>>
>> [Wed Sep 18 12:49:33 2019] kamailio[17417]: segfault at 0 ip
>> 0000562fcc3544c0 sp 00007ffe825ca1f0 error 6 in
>> kamailio[562fcc17c000+4a2000]
>>
>> [Wed Sep 18 12:49:33 2019] kamailio[17416]: segfault at 0 ip
>> 0000562fcc3544c0 sp 00007ffe825ca1f0 error 6 in
>> kamailio[562fcc17c000+4a2000]
>>
>> [Wed Sep 18 12:49:33 2019] kamailio[17380]: segfault at 0 ip
>> 00007f96c5dd099f sp 00007ffe825c98e0 error 4 in tm.so[7f96c5da5000+13f000]
>>
>> [Wed Sep 18 12:49:33 2019] kamailio[17381]: segfault at 0 ip
>> 00007f96c5dd099f sp 00007ffe825c98e0 error 4 in tm.so[7f96c5da5000+13f000]
>>
>> [Wed Sep 18 12:49:34 2019] kamailio[17387]: segfault at 8 ip
>> 0000562fcc25d1f3 sp 00007ffe825ca370 error 6 in
>> kamailio[562fcc17c000+4a2000]
>>
>>
>> and I was wondering if this core is related.
>>
>> Thanks
>>
>>
>> On Fri, Sep 13, 2019 at 5:18 PM Alex Balashov <abalashov at evaristesys.com>
>> wrote:
>>
>>> Hi Daniel,
>>>
>>> Thanks a lot for this work; it's definitely important that Kamailio
>>> build against OpenSSL v1.1, and I'll be happy to contribute some testing
>>> in a live environment in the coming weeks. Much appreciated.
>>>
>>> Have a good weekend,
>>>
>>> -- Alex
>>>
>>> On Fri, Sep 13, 2019 at 01:34:12PM +0200, Daniel-Constantin Mierla wrote:
>>>
>>> > Hello,
>>> > after couple of months waiting for feedback about the workaround with
>>> the
>>> > preloaded shared library to set the PTHREAD_PROCESS_SHARED attribute
>>> for
>>> > pthread mutex/rwlock in order to avoid deadlocks and as it seems to be
>>> the
>>> > solution, I just pushed a few commits to move that code in the core of
>>> > kamailio.
>>> >
>>> > It this way the initialization with the PTHREAD_PROCESS_SHARED
>>> attribute is
>>> > done by default when libssl v1.1 is detected at compile time, without
>>> the
>>> > need of using the approach with a preloaded library.
>>> >
>>> > The shared library is still kept in the tls module:
>>> >   *
>>> >
>>> https://github.com/kamailio/kamailio/tree/master/src/modules/tls/utils/openssl_mutex_shared
>>> >
>>> > Probably is going to be removed in the near future.
>>> >
>>> > I am asking the community members that use Kamailio on systems with
>>> libssl
>>> > v1.1+ to test the master branch and give feedback. The master branch is
>>> > anyhow in testing phase for preparing the next major release v5.3.0,
>>> so it
>>> > will help for that as well.
>>> >
>>> > If no issue is going to be reported soon, the commits will be
>>> backported to
>>> > stable branches, to re-enable smooth use of Kamailio with libssl v1.1+.
>>> >
>>> > When libssl v1.1+ is detected, the core links with pthread, but that
>>> was
>>> > already present in the Makefiles.defs for different compile options.
>>> The
>>> > pthread more or less a default library on linuxes/unixes, so this
>>> should
>>> > not introduce any major dependency to the Kamailio core.
>>> >
>>> > Cheers,
>>> > Daniel
>>> >
>>> > --
>>> > Daniel-Constantin Mierla - http://www.asipto.com
>>> > http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>>>
>>> > _______________________________________________
>>> > Kamailio (SER) - Users Mailing List
>>> > sr-users at lists.kamailio.org
>>> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>>
>>> --
>>> Alex Balashov | Principal | Evariste Systems LLC
>>>
>>> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
>>> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>>>
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing List
>>> sr-users at lists.kamailio.org
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>
>>
>> --
>> Andy Chen
>> Sr. Telephony Lead Engineer
>> 415 516 5535 (M)
>> achen@ <achen at thinkingphones.com>fuze.com
>>
>>
>> *Confidentiality Notice: The information contained in this e-mail and any
>> attachments may be confidential. If you are not an intended recipient, you
>> are hereby notified that any dissemination, distribution or copying of
>> this
>> e-mail is strictly prohibited. If you have received this e-mail in error,
>> please notify the sender and permanently delete the e-mail and any
>> attachments immediately. You should not retain, copy or use this e-mail or
>> any attachment for any purpose, nor disclose all or any part of the
>> contents to any other person. Thank you.*
>>
>> _______________________________________________
>> Kamailio (SER) - Users Mailing Listsr-users at lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
>> --
>> Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda
>> Kamailio Advanced Training, Oct 21-23, 2019, Berlin, Germany -- https://asipto.com/u/kat
>>
>>
>
> --
> Andy Chen
> Sr. Telephony Lead Engineer
> 415 516 5535 (M)
> achen@ <achen at thinkingphones.com>fuze.com
>
>

-- 
Andy Chen
Sr. Telephony Lead Engineer
415 516 5535 (M)
achen@ <achen at thinkingphones.com>fuze.com

-- 
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