On Fri, 10 Nov 2000, Gabriel Paubert wrote: > > On Thu, 9 Nov 2000, fraher wrote: > > > > > I've got a 2.2.12 kernel with Gabriel's patches (NFS mounted root), > > and it works beautifully on a MVME2603 board (many thanks, Gabriel). > > However, when I swap out the MVME2603 with a MVME2604, and cause some > > SCSI disk activity, the system crashes with > > > > end_scsi_request: buffer-list destroyed > > page fault in interrupt handler, addr=8000000 > > NIP: 08000000 XER: 20000000 LR: C00C67BC REGS: c00ffc48 TRAP: 0400 > > MSR: 40001032 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11 > > TASK = c00fdfe8[0] 'swapper' mm->pgd c00fc000 Last syscall: 112 > > ... > > kernel panic: kernel access of bad area pc 8000000 lr c00c67bc > > address 8000000 tsk swapper/0 > > > > The 'page fault' makes me wonder if the 604's TLB miss response differs > > sufficiently to cause the kernel panic. > > Has anyone else seen problems running on 2.2.12 with an MVME2604? > > Are there other patches needed to compensate for the MMU differences > > with the 604e? > > I don't have any MVME2604, but I have several MVME2400 with uptimes in > the months range. MVME2400 don't have SCSI, but a 750 has processor with > an MMU very similar to the 604e. Could it be a subtle SCSI/timing problem ? > > OTOH, I have reports of working 2604, but I don't remember if it's with > root on NFS or using SCSI. > > Gabriel. > >
I've been running 2.2.9 successfully on a '2604 with no problems. Did specific scsi activities cause the crash, or any just activity at all? When I get a chance I'll give 2.2.12 a try. Don Holmgren Fermilab djholm at fnal.gov ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
