Last Modified: Jan 06, 2023
Affected Product:
See more info
BIG-IP TMOS
Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1
Opened: Jun 25, 2018
Severity: 3-Major
A tmsh core occurs when multiple tmsh instances are spawned and terminated quickly /var/log/kern.log: info kernel: tmsh[19017]: segfault ... system messages in /var/log/messages: notice logger: Started writing core file: /var/core/-tmsh ... /var/log/audit: notice -tmsh[19010]: 01420002:5: AUDIT - pid=19010 ...
The tmsh utility crashes and produces a core file in the /shared/core directory. The BIG-IP system remains operational.
This issue occurs intermittently in the following scenario: 1. Open multiple instances of tmsh using the following command pattern: tmsh run util bash tmsh run util bash tmsh run util bash tmsh run util bash ... 2. Quickly terminate them using Ctrl-D or by closing terminal.
Restart tmsh if the problem occurs. To prevent the issue from occurring: Do not quickly terminate tmsh instances using Ctrl-D.
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