Grant> I suspect this is a result of mthca_init_one bailing
Grant> WITHOUT having succesfully called request_irq().
Grant> request_irq() implies a call to enable_irq(). The
Grant> WARN_ON() may be unneccessary since I would expect it to be
Grant> safe to call disable_irq() multiple times for a given
Grant> device. I'll ask if that's a reasonable expectation (or
Grant> not).
If you look at the stack trace, it seems iosapic_unregister_intr() is
being called from pci_disable_device(), not disable_irq(). I don't
see any way for mthca_init_one() to call pci_disable_device() without
a balancing pci_enable_device(), which is why I'm confused.
(The IRQ stuff gets involved because of Bjorn Helgaas's recent changes
to wait to route IRQs until pci_enable_device() is called)
- R.
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