From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20030925 Description of problem: According to man page for "atd", the system average load limit for a batch command to be executed is hard-compiled as 0.8. Man page even notes that for SMP systems with more than one processor, this should be raised to some value between NCPUS-1 and NCPUS (by using "-l" option to 'atd' in /etc/init.d/atd). This is, however, easy to forget and somewhat annoying (it would probably require to re-edit the script each time an upgrade is made). Version-Release number of selected component (if applicable): any "at" since RH6 (at least) How reproducible: Always Steps to Reproduce: 1.boot a SMP system 2.run a single long-running job 3.queue a batch job Actual Results: If the load average after running the "long" job raises to about 1, the batch job will not be executed until the "long" job finishes. Expected Results: With, say, 2 CPUS system and one long job running, a batch queue should be executed without any delay Additional info: I'd put the "atd-compiled" load limit to something like sysconf(_SC_NPROCESSORS_ONLN)-0.2 It's worth noting that a simple script-level solution like "grep processor /proc/cpuinfo | wc -l" may fail on machines other than i386 (e.g. on Alphas)
Sorry this bug somehow slipped through the cracks. Yes, I agree the 0.8 fixed default maximum load average is unreasonable. Perhaps it might be more reasonable to disable it entirely unless the '-l' option is given. I'm investigating and will consider what to do for the next version.
Fedora Core 1 is maintained by the Fedora Legacy project for security updates only. If this problem is a security issue, please reopen and reassign to the Fedora Legacy product. If it is not a security issue and hasn't been resolved in the current FC5 updates or in the FC6 test release, reopen and change the version to match. Thanks! NOTE: Fedora Core 1 is reaching the final end of support even by the Legacy project. After Fedora Core 6 Test 2 is released (currently scheduled for July 26th), there will be no more security updates for FC1. Please use these next two weeks to upgrade any remaining FC1 systems to a current release.
It's not security bug and support for FC1 was stopped. I'm closing it.