On Mon, May 16, 2016 at 12:27:31PM +0200, Gary Jennejohn wrote: > On Mon, 16 May 2016 12:22:42 +0200 > Gary Jennejohn <gljennjohn_at_gmail.com> wrote: > > > I tried out EARLY_AP_STARTUP, but the kernel hangs and I can't > > break into DDB. > > > > I did a verbose boot and the last lines I see are related to routing > > MSI-X to various local APIC vectors. I copied the last few lines and > > they look like this: > > > > msi: routing MSI-X IRQ 256 to local APIC 2 vector 48 > > msi: routing MSI-X IRQ 257 to local APIC 3 vector 48 > > msi: routing MSI-X IRQ 258 to local APIC 4 vector 48 > > msi: routing MSI-X IRQ 256 to local APIC 0 vector 49 > > Oops, the the last line should read > msi: Assigning MSI-X IRQ 256 to local APIC 0 vector 49 You should be able to enter ddb at this point. Methods depend on the console used, serial break for serial console, ctrl-alt-esc for sc/vt AFAIR. If you have IPMI/DRAC/ILO, send nmi. After getting at ddb> prompt, do 'bt' then 'ps' then 'alltrace' and show the output.Received on Mon May 16 2016 - 08:38:41 UTC
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