  Type-I X-ray bursts on the surface of a neutron star are a unique probe to
the accretion in X-ray binary systems. However, we know little about the
feedback of the burst emission upon accretion. Hard X-ray shortages and
enhancements of the persistent emission at soft X-rays have been observed. To
put these findings in context with the aim of understanding the possible
mechanism underneath, we investigated 68 bursts seen by RXTE from the clocked
burster GS 1826--238. We diagnosed jointly the burst influence at both soft and
hard X-rays, and found that the observations can be described as the CompTT
model with variable normalization, electron temperature and optical depth.
Putting these results in a scenario of coronal Compton cooling via the burst
emission would lead to a shortage of the cooling power, which may suggest that
additional consideration like the influence of the burst on the corona
formation should be accounted for as well.
