When running 'sudo bazel-bin/pushtosched 18', I encountered an error: sched_setscheduler(1) failed: Bad file descriptor'"

Question

When running 'sudo bazel-bin/pushtosched 18', I encountered an error: sched_setscheduler(1) failed: Bad file descriptor'"

lhpqaq opened this issue a year ago · comments

When running 'sudo bazel-bin/pushtosched 18', I encountered an error: sched_setscheduler(1) failed: Bad file descriptor'"
Can someone give me a hint?

jackhumphries · Answer 1 · Wed Feb 15 2023 08:29:51 GMT+0800 (China Standard Time)

pushtosched was updated in January. It now only supports moving threads into CFS.

To move threads into ghOSt, write the TIDs directly directly to the enclave's task file. Example:

cat /dev/cgroup/cpu/your/tasks > /sys/fs/ghost/enclave_X/tasks

lhpqaq · Answer 2 · Wed Mar 01 2023 12:58:06 GMT+0800 (China Standard Time)

pushtosched was updated in January. It now only supports moving threads into CFS.

To move threads into ghOSt, write the TIDs directly directly to the enclave's task file. Example:
cat /dev/cgroup/cpu/your/tasks > /sys/fs/ghost/enclave_X/tasks

Can I use it to schedule kernel threads? When I tried to use it to schedule root threads, I failed.

lhpqaq · Answer 3 · Wed Mar 01 2023 14:06:09 GMT+0800 (China Standard Time)

pushtosched was updated in January. It now only supports moving threads into CFS.
To move threads into ghOSt, write the TIDs directly directly to the enclave's task file. Example:
cat /dev/cgroup/cpu/your/tasks > /sys/fs/ghost/enclave_X/tasks
Can I use it to schedule kernel threads? When I tried to use it to schedule root threads, I failed.

I have succeeded, thank you！