Bug ID 509873: Rare crash and core dump of TMM or bd after rebooting a device or joining a trust domain.

Last Modified: Apr 10, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP ASM, FPS(all modules)

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4

Fixed In:
12.0.0, 11.6.0 HF5

Opened: Feb 28, 2015
Severity: 3-Major
Related AskF5 Article:
K01443011

Symptoms

The TMM process or bd daemon may crash and core dump within 24 hours of either rebooting a device, restarting TMM, or joining a trust domain. This may also happen on a standalone device that has been rebooted.

Impact

The crash might happen only within 24 hours of either rebooting a device, restarting TMM, or joining a trust domain. The TMM or bd crash causes the device to not handle traffic while the process is being restarted.

Conditions

Traffic arrives to a virtual server that is configured with: an anti-fraud profile, an ASM Security Policy, or a DOS profile that has 'Application Security' enabled.

Workaround

Performing the following actions prevents the crash from happening. Requires shell access to the device. ( 1. ) Edit the file /etc/bigstart/scripts/datasyncd: Remove the last line, which contains: exec /usr/share/datasync/bin/datasyncd >> /var/log/datasync/datasyncd.log In its place, add this: exec >> /var/log/datasync/datasyncd.log 2>&1 echo "`date`: fix start." set -x tmsh list security datasync local-profile tmsh list security datasync local-profile | grep '^security' | awk '{print $4}' | while read -r table; do tmsh modify security datasync local-profile $table max-gen-rows infinite; done tmsh list security datasync local-profile set +x echo "`date`: fix end." exec /usr/share/datasync/bin/datasyncd ( 2. ) Run 'bigstart restart tmm'. NOTE: This causes the device to be offline and not handle traffic while TMM restarts.

Fix Information

This release fixes a potential (but rare) crash of either TMM or the Enforcer that may happen within 24 hours of either rebooting a device, or joining a trust domain.

Behavior Change