Messages in this thread | | | From | Bjorn Helgaas <> | Date | Sun, 25 Sep 2011 06:24:54 -0600 | Subject | Re: Possible PNP issue on Dell PowerEdge 4200 unless noapic used |
| |
[Resending since gmail made it HTML, which LKML thinks is spam. sigh]
On Sat, Sep 24, 2011 at 6:28 PM, Jonathan Nieder <jrnieder@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. [unhandled content-type:application/octet-stream] | |