Heya, On Sun, Sep 25, 2011 at 8:24 AM, Bjorn Helgaas <bhelg...@google.com> wrote: > [Resending since gmail made it HTML, which LKML thinks is spam. sigh] > > On Sat, Sep 24, 2011 at 6:28 PM, Jonathan Nieder <jrnie...@gmail.com> wrote: >> >> (just cc-ing linux-kernel so any work on this gets archived) >> trouble daemon wrote: >> >> > Greetings, >> > >> > Hello Adam and Bjorn. I am sending this email to you as suggested by >> > Jonathan regarding a problem that I was having with Linux on a pair of >> > old Dell PowerEdge 4200 machines that I own (yes, they still run!). >> > >> > I have left the most recent reply between Jonathan and I quoted below, >> > but you can find the original bug report at the Debian bug tracker >> > under bug #586494 [1]. As a brief recap, I have been required to use >> > the noapic kernel option in these systems in order to allow them to >> > boot, and appears to have originated after a commit to the kernel >> > relating to EISA (although it has come to my attention now that PNP >> > may be related as well). >> > >> > As suggested, I have attached a copy of the "quick & dirty" config I >> > used for a vanilla 3.1.0-rc7 kernel I compiled, along with the boot >> > log of the machine, and a diff against the apic log of a working boot >> > of the same kernel when using noapic. One thing that I should mention >> > is that on these dells, I also usually use the pnpbios=off option to >> > hide the pesky warnings on boot, in addition to noapic. >> > >> > I hope these logs help you in some way. If there is anything else you >> > might be interested in knowing or testing, don't hesitate to ask! >> >> Original report: http://thread.gmane.org/gmane.linux.kernel/1000807 >> Logs: http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=86;bug=586494 >> >> > Dan McGrath >> > >> > PS - Not a problem Jonathan, thanks! >> > >> > [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=586494
> Dan, can you try the attached patch? I'm not an MPS expert, but from > inspecting f8924e770, it seems suspect that we used to always set the > mp_bus_not_pci bit, then clear it if we found a PCI bus. After > f8924e770, we set mp_bus_not_pci for ISA buses, clear it for PCI > buses, and leave it alone otherwise. Success! :) Booted up like a charm in 3.1.0-rc7 with the patch applied and no kernel boot params. Thank you for figuring it out *bow*
mps-fix
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