Hi, Please include the following patch in the 5.4 LTS kernel: commit b73eba2a867e10b9b4477738677341f3307c07bb Author: Gang He <GHe@xxxxxxxx> Date: Sat Jan 4 13:00:22 2020 -0800 ocfs2: fix the crash due to call ocfs2_get_dlm_debug once less because ocfs2 module crashes the system starting with commit v5.2-5650-ge581595ea29c up to the fix in v5.5-rc4-152-gb73eba2a867e. -- Valentin