It's worth noting that a few tests in the current Open Posix Test Suite
hang RT systems.
Specifically this test (hope this url comes through),
http://cvs.sourceforge.net/viewcvs.py/*checkout*/posixtest/posixtestsuite/conformance/interfaces/sched_setparam/10-1.c?rev=1.2
sched_setparam test 10-1.c and I think 9-1.c .
The 10-1 test spawns some children at SCHED_FIFO priority 99 , then runs
the following,
void child_process(){
alarm(2);
while(1) {
(*shmptr)++;
sched_yield();
}
}
I'm sure this is what's hanging the system, the yield() is one issue.
Another is why the alarm() is never delivered .
Daniel
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]