Issues with kdump/kexec on an ARM dual-core ARM Cortex-A7.

[Bruce Mitchell]

>
> On Tue, Feb 23, 2021 at 6:18 PM Bruce Mitchell <Bruce.Mitchell at ibm.com> wrote:
> >
> >
> > I am having troubles getting kdump/kexec functioning on an
> > ARM dual-core ARM Cortex-A7 (a BMC by ASPEED AST2600) and QEMU.
> > I do have kexec -l loading the new kernel, but after kexec -e
> > the new kernel starts booting and the I get a watchdog BUG as shown here:
> > [240.343350] kexec_core: Starting new kernel
> > [241.639076] IRQ36: set affinity failed(-22).
> > [241.657868] Bye!
> > [ 0.000000] Booting Linux on physical CPU 0xf00
> >
>
> Just our of curiosity, what happens when you try "kexec -p" and induce
> a kernel panic, to jump to kdump kernel? Does it work, or it's the
> same?

Same results.

>
> Also, worth to try irqpoll maybe as a parameter of the second kernel,
> to see if it can progress.

Thanks for the suggestion.