Re: [asterisk-users] Asterisk 13 on old VMware ESXI 4

[Carlos Chavez]

On 2017-08-02 07:08, Nathan Anderson wrote:

Richard Kenner wrote:


But the question here
was *Asterisk*, not kernels.  User-level code has *way* fewer
dependencies.


*Precisely*.  Unless we're talking DAHDI here (which we're not), Linux
& ESXi are red herrings.

Carlos Chavez wrote:


  I am having a very tough time trying to replace an Elastix 2.X
install running as a virtual machine on ESXI 4.


There's no way this has anything to do with ESXi or the version of it
that you are running.  Zero.  Zip.  Zilch.

If you want to prove this to yourself and others, take the *exact*
same binary bits, install them bare-metal on another piece of
hardware, run the same traffic through it, and watch it crash and burn
in the same way.  The only way that I can see this playing out
differently is if the bug (yes, bug) in Asterisk and associated
libraries is extremely timing-dependent, and running it in a VM is
exposing this bug in a way that most bare-metal installations
wouldn't.


I will try using chan_sip
instead of PJSIP to get things running but confidence is not high.


Given that the log entry you pasted into your e-mail references
"libasteriskpj.so", I'd bet $$$ that switching to chan_sip has an
extremely high likelihood of working, assuming that your set-up has no
particular dependencies on PJSIP-specific features that you have to
work around (and if you are migrating from an Asterisk 1.6
installation, I'm guessing it doesn't).

Best of luck,

-- Nathan


I run the CentOS 7.3 / Asterisk 13.17.0 combination of software 
installed from the same sources on multiple servers across a wide 
variety of hardware (both metal and virtual) and this is the only place 
that I have encountered this particular problem.  That is why the only 
variable left is the version of ESXI as newer versions work.  
Unfortunately I do not have a newer server where I can just import this 
same VM to completely eliminate the possibility.


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Re: [asterisk-users] Asterisk 13 on old VMware ESXI 4

[Nathan Anderson]

Richard Kenner wrote:

> But the question here
> was *Asterisk*, not kernels.  User-level code has *way* fewer
> dependencies.

*Precisely*.  Unless we're talking DAHDI here (which we're not), Linux & ESXi 
are red herrings.

Carlos Chavez wrote:

>   I am having a very tough time trying to replace an Elastix 2.X 
> install running as a virtual machine on ESXI 4.  

There's no way this has anything to do with ESXi or the version of it that you 
are running.  Zero.  Zip.  Zilch.

If you want to prove this to yourself and others, take the *exact* same binary 
bits, install them bare-metal on another piece of hardware, run the same 
traffic through it, and watch it crash and burn in the same way.  The only way 
that I can see this playing out differently is if the bug (yes, bug) in 
Asterisk and associated libraries is extremely timing-dependent, and running it 
in a VM is exposing this bug in a way that most bare-metal installations 
wouldn't.

> I will try using chan_sip 
> instead of PJSIP to get things running but confidence is not high.

Given that the log entry you pasted into your e-mail references 
"libasteriskpj.so", I'd bet $$$ that switching to chan_sip has an extremely 
high likelihood of working, assuming that your set-up has no particular 
dependencies on PJSIP-specific features that you have to work around (and if 
you are migrating from an Asterisk 1.6 installation, I'm guessing it doesn't).

Best of luck,

-- Nathan

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Re: [asterisk-users] Asterisk 13 on old VMware ESXI 4

[George Joseph]

On Tue, Aug 1, 2017 at 12:53 PM, Carlos Chavez  wrote:

>  I am having a very tough time trying to replace an Elastix 2.X
> install running as a virtual machine on ESXI 4.  I tried using the Freepbx
> 14 ISO that installs CentOS 6 along with Asterisk 13.16 but I keep getting
> random segfaults:
>
> [175711.476685] asterisk[2942]: segfault at 188 ip 7fc6c41abffc sp
> 7fc608575890 error 4 in libasteriskpj.so.2[7fc6c4144000+14c000]
>

The messages that get dumped to the kernel log aren't of much use.  See
below for more info.


>
>  I then proceeded to install a CentOS 7.3 VM and compiled Asterisk
> 13.17.0 by hand.


That *should* be a good combination.


> We are still using Freepbx 14 for the front end.  We did some testing over
> the weekend and calls were coming in and out and all extensions were
> registered.  Come Monday Asterisk started segfaulting again with exactly
> the same error.  Maybe VMware is too old to support the newer CentOS and
> Asterisk?  The Elastix install is based on CentOS 5 and Asterisk 1.6.  I
> have no idea how to approach this.  It only segfaults when there are only
> more than a couple simultaneous calls, that is why testing with only a
> couple of calls worked.
>
>  There are several core dump files but I really do not know how to use
> them for debugging Asterisk.  Any ideas?


If you still have the coredump files, you can use the ast_coredumper
utility located in /var/lib/asterisk/scripts to extract the human-readable
stack traces.  "sudo /var/lib/asterisk/scripts/ast_coredumper --help" will
get you more info on how to run the command.  The *-thread1.txt file it
produces will be the most helpful but all 4 should be attached to the
Asterisk issue should you decide to create one.



> I will try using chan_sip instead of PJSIP to get things running but
> confidence is not high.
>
> --
> Telecomunicaciones Abiertas de México S.A. de C.V.
> Carlos Chávez
> dCAP #1349
> +52 (55)8116-9161
>
> --
> _
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
> Check out the new Asterisk community forum at:
> https://community.asterisk.org/
>
> New to Asterisk? Start here:
>  https://wiki.asterisk.org/wiki/display/AST/Getting+Started
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users




-- 
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445 Jan Davis Drive NW - Huntsville, AL 35806 - US
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Re: [asterisk-users] Asterisk 13 on old VMware ESXI 4

[Richard Kenner]

> There are certain versions of the Linux kernel that have no support
> under the older version of ESXI.  We started having issues under our
> ESXI v4 setup with RH Enterprise and vmware's response was, "It's
> not supported"

"not supported" and "does not work" are not the same thing.  ESXI
emulates specific hardware.  Most kernels will work with old hardware,
so they should work with old ESXI, though there may need to be some
configuration changes and there's always the possibility of bugs in
ESXI that weren't detected by older kernels.  But the question here
was *Asterisk*, not kernels.  User-level code has *way* fewer
dependencies.

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Re: [asterisk-users] Asterisk 13 on old VMware ESXI 4

[Doug Lytle]

>>> On Aug 2, 2017, at 6:45 AM, Richard Kenner ken...@gnat.com wrote:

>>> I wouldn't believe it either.  I'd be quite surprised if something won't
>>> work with any ESXI version.  *Perhaps* there's a configuration issue, but
>>> I'd be surprised about that too.

There are certain versions of the Linux kernel that have no support under the 
older version of ESXI.  We started having issues under our ESXI v4 setup with 
RH Enterprise and vmware's response was, "It's not supported"

Doug

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Re: [asterisk-users] Asterisk 13 on old VMware ESXI 4

[Richard Kenner]

> The version is licensed and the customer does not want to invest on new 
> hardware/software at the moment.  If the ESXI version is too old I need 
> to give them definitive proof that the segfaults are caused by that but 
> since the old elastix has been running there for years they do not quite 
> believe it.

I wouldn't believe it either.  I'd be quite surprised if something won't
work with any ESXI version.  *Perhaps* there's a configuration issue, but
I'd be surprised about that too.

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Re: [asterisk-users] Asterisk 13 on old VMware ESXI 4

[Carlos Chavez]

On 2017-08-01 15:48, Doug Lytle wrote:

I am having a very tough time trying to replace an Elastix 2.X
install running as a virtual machine on ESXI 4


Licensed or free ESXI?

I want to say your version is too old.  I'm currently running ESXI 6.0
update 3 at home and Asterisk in a VM under debian without issue.

Doug


The version is licensed and the customer does not want to invest on new 
hardware/software at the moment.  If the ESXI version is too old I need 
to give them definitive proof that the segfaults are caused by that but 
since the old elastix has been running there for years they do not quite 
believe it.


--
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Carlos Chávez
dCAP #1349
+52 (55)8116-9161

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Re: [asterisk-users] Asterisk 13 on old VMware ESXI 4

[Doug Lytle]

>>> I am having a very tough time trying to replace an Elastix 2.X 
>>> install running as a virtual machine on ESXI 4

Licensed or free ESXI?

I want to say your version is too old.  I'm currently running ESXI 6.0 update 3 
at home and Asterisk in a VM under debian without issue.

Doug

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