Re: mthca double free irqs

Jesse Barnes
2009-06-12T15:51:42Z

On Fri, 12 Jun 2009 07:33:30 -0700
Roland Dreier <rdreier@cisco.com> wrote:

> By the way, can you try this with the ib_mthca module option
> "msi_x=0" -- because I see
>
> > [ 606.538429] ib_mthca 0000:c4:00.0: NOP command failed to
> > generate interrupt (IRQ 234).
> > [ 606.543348] ib_mthca 0000:c4:00.0: Trying again with MSI-X
> > disabled.
>
> But perhaps the fallback to non-MSI-X in the driver is messing things
> up. Also you have:

My linux-next branch has a change to the return value from the MSI-X
allocation function: pci_enable_msix now returns the number of
available entries rather than -EINVAL if the allocation failed. Would
that cause problems in the mthca driver?

--
Jesse Barnes, Intel Open Source Technology Center