Kernel Panics After Installing 8.8.0/8.8.2 Agent

Products

• Carbon Black App Control
• Carbon Black App Control (formerly Cb Protection)

Issue/Introduction

After installing the 8.8.0/8.8.2 Linux Agent, the OS is crashing

Environment

App Control Linux Agent: 8.8.0+

Cause

Kernel panic in the __pv_queued_spin_lock_slowpath() routine that is called from the stall_tbl_disable() function that belongs to the "cb_appc_events_3_1_2402596 kernel module"

Resolution

Install the 8.7.24 Agent instead of the 8.8.2 Agent until the next agent release, which will have a fix for this issue

Additional Information

• The fix for this bug EPCB-21521 is expected in Linux Agent version 8.8.4
• The following Red Hat kb has additional information