Hi
We are using RZ/A1 processor based custom target board . linux kernel version is 4.9.123 ( downloaded from renesas site).
user manual r01uh0403ej0200_rz_a1h pdf is referred .
we have logged interrupts events in Linux kernel .
it seems sometimes the global interrupts are disabled for almost a period of 4.5 ms . i:e no interrupts are reported on arm core for 4.5 ms .
this is leading to delay in interrupt delivery crucial to our system .
do we have any previous known issues where such disabling of interrupts happens for such time ?
( I also observed these messages on our target "hrtimer: interrupt took 98200 ns" ).
also can we be suggested with ways how to debug this problem further .
thanks
amit