Qdisc modules remain loaded post run

[Hrishikesh Athalye]

Hi,

Have been encountering errors unloading the qdisc kernel modules such as sch_fq_pie after completing a test run using NeST v0.3.

During the test, I am applying the qdisc on an interface using set_attributes() with the qdisc name as one of the arguments.

After the test completes, the kernel modules pertaining to the qdisc remain loaded and I am not able to unload them using rmmod or modprobe -r without/with the force option (screenshots attached). They get unloaded only after system restart. 

I plan to recompile and reinsert the qdisc as a pre-test step but since the module isn't unloading, I am unable re-execute the test without restarting my system again.

1. Before and after test execution (sch_fq_pie remains loaded)

2. Error when unloading

Please help or suggest possible workarounds.

Thanks and Regards,

Hrishikesh Athalye

[Mohit P. Tahiliani]

Hi Hrishikesh,

Hope you concern is addressed. I had an offline conversation with Sachin.

I believe it was not a NeST issue. But if it was, do let us know.

Thanks,

Mohit P. Tahiliani