High CPU utilization on idle mount

[wethura]

High CPU utilization (may be idle mount)

Environment:

Liunx: Linux i-dd757c23 3.10.0-1160.114.2.el7.x86_64 #1 SMP Wed Mar 20 15:54:52 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux Kubernetes: v1.27.11+k3s1 S3: standard S3(AWS) Geesefs: 0.36.1

How i found it:

move some application from local-path to csis3, i found the cpu is high load. and i get in the container directory and send command 'ls', and CPU high load would dissmiss after the command send.

Strace LOG

Found more than 2300 line strace log in one second like below.

11:45:33.420011 futex(0x1a6b898, FUTEX_WAKE_PRIVATE, 1) = 0 <0.000020> 11:45:33.420094 sched_yield() = 0 <0.000021>

how to reproduce:

cannot reproduce.