Why does the system seem unresponsive when running a process at real-time priority?
Issue
- Running the following command, causes the system to become unresponsive
# taskset -c 1 chrt -f 40 ./test_prog
Note: The following is a sample "test_prog" program
int
main(int argc,char * argv[])
{
while(1) {}
return(0);
}
- Server was hung, RCA required.
- We have "freeze" on the server and have a vmcore, need help to identify the root cause of this crash.
Environment
- Red Hat Enterprise Linux 6
- Red Hat Enterprise MRG
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