On Friday 16 July 2004 11:02 am, Richard Welty wrote: > i have an IBM X330 which has run well with a single CPU and > FC2 for a while now. i recently acquired a second PIII for it and > am having no luck getting it to work with the SMP kernel. > > the kernels i've been using are: > > $ rpm -q kernel > kernel-2.6.6-1.435 > $ rpm -q kernel-smp > kernel-smp-2.6.6-1.435 > > the CPUs are a pair of 1266MHz PIIIs, both of the same stepping, > and both pass the built in CPU diagnostics w/o trouble. with both > CPUs installed, the non-SMP kernels boot and run just fine. > > when i try to bring the SMP kernel up, it starts but after it reports > > using cfq io scheduler > > it then starts having problems with the IDE CD-ROM driver (all > the hard drives are SCSI drives on a RAID controller): > > ide0 at 0x1f0-01f7, 03f6 on irq 14 > ide-cd: cmd 0x5a timed out > hda: lost interrupt > > thanks, > richard Total shot in the dark since I don't have a box like this, but I'd disable DMA on the failing device (assuming that it is on). Regards, John Wendel