dell poweredge 2400 dual 1ghz processors. (at least smp) kernels after 1788 have enormous kernel processor overhead. applications that are i/o bound on kernel 1788 or earlier ... are severely degraded on kernels after 1788 with 100% processor utilization ... almost all of it in kernel. when applications are idle ... the processor use goes idle (aka it isn't some sort of background looping process ... but seems to be some sort extra kernel overhead). this is machine that i had problems with scsi i/o hanging after fc4 smp kernel 1278 (non-smp kernel didn't have scsi i/o hang problem). smp kernel hanging problem cleared up with fresh fc5 install. -- fedora-test-list mailing list fedora-test-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-test-list