On Mon, 22 Oct 2007 13:43:16 +0100 (BST) Chris Rankin <[email protected]> wrote:
> Hi,
>
> I have a Netgear MA301 PLX wireless networking adapter which wants to use the hostap_plx driver in
> Linux 2.6.23.1. This very same piece of hardware works fine in an old(!) P120 machine running
> 2.4.33, but makes the 2.6.23.1 kernel freeze as soon as the pci_enable_device() function is called
> in prism2_plx_probe. What seems to happen is that IRQ 5 is signalled (the adapter's IRQ, according
> to lspci), but the handler function hasn't been installed yet and so the kernel disables IRQ 5 and
> locks up. However, the documentation that I have read implies that calling pci_enable_device()
> before requesting the IRQ number to install the handler on is "The Right Thing to do", because
> otherwise the IRQ number might change.
>
> I have tried booting with "acpi=off nolapic" to no effect. The kernel is UP with 4K stacks and
> PREEMPT.
>
> Can anyone suggest what a suitable fix might be, please? Because I am currently thinking "CLI" and
> "STI"!
>
(+linux-wireless)
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