Bug ID 636397: bd cores when persistent storage configuration and under some memory conditions.

Last Modified: Aug 19, 2026

Affected Product(s):
BIG-IP ASM(all modules)

Known Affected Versions:
12.1.2, 12.1.2 hf1, 12.1.2 hf2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6

Fixed In:
13.0.0

Opened: Jan 03, 2017

Severity: 2-Critical

Symptoms

bd cores. Log signature in /var/log/bd looks similar to the following: BD_MISC|ERR |Jan 02 14:24:06.422|27867|io_manager_init.c:0395|internal_keep_alive: BD shrinking...,going down - BD will be right back. ptr BD_MISC|CRIT |Jan 02 14:24:06.422|27867|signals.c:0073|Received SIGSEGV - Core Dumping.

Impact

bd crash. Traffic resets and/or failover

Conditions

There is persistent storage configuration. There is high memory usage.

Workaround

None.

Fix Information

This release fixes a bd crash due to specific memory conditions and persistent storage.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips