[Crash-utility] irq: x86_64_dump_irq: irq_desc[] does not exist?

[Dave Anderson]

----- "CAI Qian" <caiqian at redhat.com> wrote:

> Hallo!
> 
> When analyzing VMCores came from 2.6.31 kernel, irq sub-command is not
> working.
> 
> crash> irq
> irq: x86_64_dump_irq: irq_desc[] does not exist?
> 
> Is that because of the irq data structures changed in kernel from static
> to dynamic allocated?

It looks like that, starting in 2.6.29, the irq_desc[] array can be replaced by
an irq_desc_ptrs[] array if the kernel is configured with CONFIG_SPARSE_IRQ.

I'm fixing the "kmem -z" as we speak -- I'll look into this afterwards.

Shifting sands...

Dave