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cpulimit is not sending SIGCONT signal to the processes #123
Description
Hi,
I am seeing this intermittent behavior in rocky8.9 where i suspect cpulimit is not sending SIGCONT to the child proc and child processes is been hung there for days. Any idea what could be the reason ? How do debug this issue?
cmd: cpulimit -l 15 aws s3 cp foo bar
and there is no load on the system and have enough cpu cycles. If i send SIGCONT to the pid then the processes is getting executed successfully. We never saw this behavior in centos7.
sudo strace -p 2558819
strace: Process 2558819 attached
--- stopped by SIGSTOP ---
version: cpulimit-0.2-13.20151118gitf4d2682.el8.x86_64
Activity
HiGarfield commentedon Nov 28, 2024
You can try my modified version with the errors fixed: https://github.com/HiGarfield/cpulimit.
I also provided an executable; just extract it and run it.
cpulimit.tar.gz
rammohanganap commentedon Nov 28, 2024
@HiGarfield thanks for the quick response, is this a known issue with cpulimit in rocky8/rhel8 OS? any references related to this issue?
HiGarfield commentedon Nov 28, 2024
@rammohanganap In recent years, I have discovered some bugs in the processes of process name matching, reading process information, sending signals, and handling multithreading concurrency. I made many modifications. Please refer to the commits in my forked repository for details. https://github.com/HiGarfield/cpulimit
HiGarfield commentedon Nov 28, 2024
After testing, the cpulimit in my repo works properly on Rocky Linux.