Bug ID 1001541: TMM crash (SIGFPE) when starting on a VCMP guest

Last Modified: Apr 11, 2024

Affected Product(s):
BIG-IP TMOS, vCMP(all modules)

Known Affected Versions:
12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,

Fixed In:
14.1.0, 13.1.4, 12.1.6

Opened: Mar 11, 2021

Severity: 2-Critical


A log message in /var/log/tmm similar to the following: Assertion 'Hash type successfully set' failed.


Tmm may initially fail to start, log an SIGFPE, and then might or might not start normally afterwards.


A vCMP guest running either: - v13.x release of or later - v12.x release of or later A vCMP hypervisor that is running - v13.x release of or lower - v12.x release or or lower - v11.x release Any vCMP guests running v14.x or later are not affected.


Either: -- Upgrade the vCMP Hypervisor to the latest release. -- Upgrade the guest to v14.1.0 or later. It may also help to remove the cached libdag on the guest, and restart tmm by running the following commands on the guest: rm -f /var/run/libdag.so_* && bigstart restart tmm

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips