Hey,i am using Jetson TX2 ,After a few days of booting, the soft interrupt takes up a lot of cpu, and all the services I run can not be solved. I can only restart TX2. After a few days of restart, the phenomenon will reappear.
[url]https://i.postimg.cc/bNdzpcV5/20181211160717.png[/url]
cat/proc/softirqs
nvidia@tegra-ubuntu:~$ cat /proc/softirqs
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5
HI: 0 0 0 0 2 0
TIMER: 123048378 56606044 63189368 87669532 88059043 86446440
NET_TX: 25 0 0 8 11 6
NET_RX: 104043248 13604 12741 156948 162720 154287
BLOCK: 0 0 0 0 0 0
BLOCK_IOPOLL: 0 0 0 0 0 0
TASKLET: 6896159 0 0 0 43 0
SCHED: 78640423 51030650 54029678 57211181 56959892 55802611
HRTIMER: 0 0 0 0 0 0
RCU: 83420258 33841953 68634182 92089457 45229431 44422639
i found a hrtimer: interrupt took xxxxx ns log in dmesg log,can this lead to the high softirq？I have compare 2 TX2 device which has high softirq to the other 2 TX2 device which is normal。I found only on the abnormal TX2 devices has the “hrtimer: interrupt took xxxxx ns” log.
Or is the reason of high softirq lead the “hrtimer: interrupt took xxxxx ns” log?
dmesg.txt (66.9 KB)
![https://i.postimg.cc/bNdzpcV5/20181211160717.png[/url]](https://i.postimg.cc/bNdzpcV5/20181211160717.png%5B/url%5D){kind=link}