It's probably a same problem as klog#23335.
A cause of glitches is an IPC error.

Figure 1 shows the DARM control signals on k1lsc, k1visetmxp, and k1calcs at the time when glitch seems to occur.
Because strange behavior (at t=0) can be seen on a downstream of RFM for k1lsc->k1visetmxp (K1:VIS-ETMX_TM_ISCINF_L_IN1_DQ)
and SHMEM for k1lsc->k1calcs (K1:CAL-DARM_CTRL_DBL_DQ) at the same time, CPU load of k1lsc is more doubtful than RFM and/or SHMEM themselves.