# VitalPBX Asterisk crashed unhandled exception PJLIB/No memory!
**URL:** https://forums.vitalpbx.org/t/vitalpbx-asterisk-crashed-unhandled-exception-pjlib-no-memory/6439
**Category:** Reporting an Issue
**Created:** [September 1, 2026, 12:23am UTC](https://forums.vitalpbx.org/t/vitalpbx-asterisk-crashed-unhandled-exception-pjlib-no-memory/6439 "2026-09-01T00:23:07Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Jbelectronics](https://forums.vitalpbx.org/u/Jbelectronics)
#### Post date: [September 1, 2026, 12:23am UTC](https://forums.vitalpbx.org/t/vitalpbx-asterisk-crashed-unhandled-exception-pjlib-no-memory/6439/1 "2026-09-01T00:23:07Z")
VitalPBX Asterisk crashed and restarted with below error in the logs, Any way to diagnose what caused this and prevent this from happening again ?
[2026-08-31 06:41:35] ERROR[1664] pjproject: except.c …!!!FATAL: unhandled exception PJLIB/No memory!
[2026-08-31 06:41:35] ERROR[1664] pjproject: ../src/pj/except.c …Assert failed: handler != NULL
[2026-08-31 06:42:28] Asterisk 20.20.1 built by root @ pbx on a x86\_64 running Linux on 2026-07-29 23:22:55 UTC
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### Author:  [@miguel](https://forums.vitalpbx.org/u/miguel)
#### Post date: [September 1, 2026, 12:23am UTC](https://forums.vitalpbx.org/t/vitalpbx-asterisk-crashed-unhandled-exception-pjlib-no-memory/6439/2 "2026-09-01T00:23:37Z")
What version of VitalPBX is this?
Where’s the server hosted?
Is it a brand new server?
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### Author:  [@Jbelectronics](https://forums.vitalpbx.org/u/Jbelectronics)
#### Post date: [September 1, 2026, 1:07am UTC](https://forums.vitalpbx.org/t/vitalpbx-asterisk-crashed-unhandled-exception-pjlib-no-memory/6439/3 "2026-09-01T01:07:52Z")
Hi,
No its not a brand new server been same server since almost a year now.
Its hosted on Linode, 6 core, 16 GB Ram.
Vital PBX Version: 4.5.3-8
Asterisk Version: 20.20.1
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### Author:  [@miguel](https://forums.vitalpbx.org/u/miguel)
#### Post date: [September 1, 2026, 2:57am UTC](https://forums.vitalpbx.org/t/vitalpbx-asterisk-crashed-unhandled-exception-pjlib-no-memory/6439/4 "2026-09-01T02:57:04Z")
Check the thread below about this:
>
>
> \### Severity
>
> Major
>
> \### Versions
>
> 21.2.0
>
> \### Components/Modules
>
> pjproject
>
> \##…# Operating Environment
>
> Amazon Linux 2 (RHEL)
>
> \### Frequency of Occurrence
>
> One Time
>
> \### Issue Description
>
> One of our Asterisk instances crashed today when trying to allocate memory to a pj\_pool:
>
> \`\[2024-04-30 11:11:04\] ERROR\[28315\]: pjproject:\: except.c ..!!!FATAL: unhandled exception PJLIB/No memory!\`
>
> This is the first time it's happened, and we have 6 identical instances total (load balanced) that have been running for about a month, and so far it's only happened the once.
>
> The system is not experiencing memory issues, and it doesn't appear to be a memory leak (no visible downward trend over time in on our Available memory graphs):
>
> !\[image\](https://github.com/asterisk/asterisk/assets/4993169/1c4613cb-c56d-4637-b83e-1aa8d1e9f5eb)
>
> The servers are not under a high load - there was only around 120 active calls when this happened. I've included a backtrace from the core dump.
>
> It's a production device, so I'm not able to run it under Valgrind, but I can probably provide some redacted config files if that's helpful..
>
>
> \### Relevant log output
>
> \`\`\`shell
> \#0 0x00001479505e6cd0 in \_\_longjmp\_chk () from /lib64/libc.so.6
> \#1 0x0000147952e2952e in pj\_throw\_exception\_ (exception\_id=1) at ../src/pj/except.c:53
> \#2 0x0000147952d96f90 in pool\_callback (pool=\, size=\) at ../src/pjsip/sip\_endpoint.c:143
> \#3 0x0000147952e2d9f5 in pj\_pool\_create\_block (size=7598263421698388000, pool=0x14792c65baa0) at ../src/pj/pool.c:62
> \#4 pj\_pool\_allocate\_find (pool=0x14792c65baa0, size=7598263421698387232) at ../src/pj/pool.c:148
> \#5 0x0000147952e2da52 in pj\_pool\_alloc (pool=\, size=\) at ../include/pj/pool\_i.h:61
> \#6 0x0000147952e39b59 in pj\_strdup (pool=pool@entry=0x14792c65baa0, dst=dst@entry=0x147902c0f7f8, src=0x1e58c48) at ../include/pj/string\_i.h:42
> \#7 0x0000147952d9fab9 in pjsip\_tpmgr\_find\_local\_addr2 (tpmgr=0x1e3f5c8, pool=pool@entry=0x14792c65baa0, prm=prm@entry=0x147902c0f7d0) at ../src/pjsip/sip\_transport.c:1770
> \#8 0x000014790b63ada5 in filter\_on\_tx\_message (tdata=0x14792c65bb48) at res\_pjsip/pjsip\_message\_filter.c:253
> \#9 0x0000147952d96f3c in endpt\_on\_tx\_msg (endpt=\, tdata=0x14792c65bb48) at ../src/pjsip/sip\_endpoint.c:1125
> \#10 0x0000147952d9e9a4 in pjsip\_transport\_send (tr=0x14793d6f9838, tdata=tdata@entry=0x14792c65bb48, addr=addr@entry=0x1479441374f4, addr\_len=28, token=token@entry=0x147944137408,
> cb=cb@entry=0x147952db02b0 \) at ../src/pjsip/sip\_transport.c:944
> \#11 0x0000147952db0715 in tsx\_send\_msg (tsx=0x147944137408, tdata=0x14792c65bb48) at ../src/pjsip/sip\_transaction.c:2351
> \#12 0x0000147952db296e in tsx\_on\_state\_proceeding\_uas (event=0x147902c0fa50, tsx=0x147944137408) at ../src/pjsip/sip\_transaction.c:2948
> \#13 tsx\_on\_state\_trying (tsx=0x147944137408, event=0x147902c0fa50) at ../src/pjsip/sip\_transaction.c:2878
> \#14 0x0000147952db4707 in pjsip\_tsx\_send\_msg (tsx=0x147944137408, tdata=tdata@entry=0x14792c65bb48) at ../src/pjsip/sip\_transaction.c:1969
> \#15 0x000014790b62bf61 in ast\_sip\_send\_stateful\_response (rdata=rdata@entry=0x14793ed75598, tdata=0x14792c65bb48, sip\_endpoint=sip\_endpoint@entry=0x14792cf94368) at res\_pjsip.c:2460
> \#16 0x000014790b63178f in send\_options\_response (rdata=0x14793ed75598, code=code@entry=200) at res\_pjsip/pjsip\_options.c:256
> \#17 0x000014790b63190f in options\_on\_rx\_request (rdata=\) at res\_pjsip/pjsip\_options.c:305
> \#18 0x0000147952d97ca1 in pjsip\_endpt\_process\_rx\_data (endpt=0x1bdb5a8, rdata=rdata@entry=0x14793ed75598, p=p@entry=0x14790b87a400 \, p\_handled=p\_handled@entry=0x147902c0fc1c)
> at ../src/pjsip/sip\_endpoint.c:930
> \#19 0x000014790b6466ef in distribute (data=0x14793ed75598) at res\_pjsip/pjsip\_distributor.c:952
> \#20 0x00000000005a0bee in ast\_taskprocessor\_execute ()
> \#21 0x00000000005a732b in execute\_tasks ()
> \#22 0x00000000005a0bee in ast\_taskprocessor\_execute ()
> \#23 0x00000000005a7c81 in worker\_start ()
> \#24 0x00000000005af939 in dummy\_start ()
> \#25 0x00001479524e944b in start\_thread () from /lib64/libpthread.so.0
> \#26 0x00001479505d652f in clone () from /lib64/libc.so.6
> \`\`\`
>
>
> \### Asterisk Issue Guidelines
>
> \- \[X\] Yes, I have read the Asterisk Issue Guidelines