rmaptest timeout on scobee-kernel on RT flavour of focal:nvidia-tegra-5.15 only

[Jacob Martin]

This occurred on scobee-kernel while running the flavor of focal:linux-nvidia-tegra-5.15 with PREEMPT_RT enabled (nvidia-tegra-rt).

10:20:26 DEBUG| [stdout] Total file size: 40396k, Total memory: 40000k
10:20:26 DEBUG| Running '/home/ubuntu/autotest/client/tmp/rmaptest/src/rmaptest -l -i100 -n100 -s100 -t100 -V10 -v file2.dat'
10:20:56 DEBUG| [stdout] Total file size: 40396k, Total memory: 40000k
10:20:56 DEBUG| [stdout] 0/100
10:20:56 DEBUG| [stdout] 1/100
..
10:20:56 DEBUG| [stdout] 98/100
10:20:56 DEBUG| [stdout] 99/100
10:25:30 DEBUG| [stdout] Total file size: 40396k, Total memory: 40000k
10:25:30 DEBUG| [stdout] 0/100
10:25:30 DEBUG| [stdout] 1/100
10:25:30 DEBUG| [stdout] 2/100

-- longer break --

10:25:30 DEBUG| [stdout] Total file size: 40396k, Total memory: 40000k
10:25:30 DEBUG| [stdout] 0/100
10:25:30 DEBUG| [stdout] 1/100
..
10:25:30 DEBUG| [stdout] 98/100
10:25:30 DEBUG| [stdout] 99/100
10:25:30 DEBUG| [stdout] Total file size: 40396k, Total memory: 40000k
10:25:30 DEBUG| [stdout] 0/100
10:25:30 DEBUG| [stdout] 1/100
..
10:25:30 DEBUG| [stdout] 98/100
10:25:30 DEBUG| [stdout] 99/100
10:25:30 DEBUG| [stdout] Total file size: 40396k, Total memory: 40000k
10:25:30 DEBUG| [stdout] 0/100
10:25:30 DEBUG| [stdout] 1/100
..
10:25:30 DEBUG| [stdout] 98/100
10:25:30 DEBUG| [stdout] 99/100
10:27:44 INFO | Timer expired (1500 sec.), nuking pid 5645

There appears to be iterations that take several minutes to complete. When running the non-rt flavor of this kernel on the same machine (scobee-kernel), the test completes well within the time limit.

[Po-Hsu Lin (cypressyew)]

Hmm we have this timeout bumped to 25 minutes in https://git.launchpad.net/~canonical-kernel-team/+git/autotest-client-tests/commit/?id=7987df1053c979a5b37e77dda3d09b0c34300811

I am not sure why this test is slower with RT flavour, but please let me know if we want to bump this timeout again.