Dear sirs,
i have succesfully used the e1000 in a production system for years,
recently i needed to install a USB-Stick to my system for storage, and this
was problematic.
What happened is that the usb was using the same interrup as the NIC. (irq
#11)
The system stop working as soon as I load the usb-storage module with the
following kernel message:
RTDM: xnintr_irq_handler: IRQ11 not handled. Disabling IRQ line.
There was no way for my board BIOS to assign other interrupts.
So I started to investigate a solution, and ad the end I found the following
which seems to work.
Perhaps someone could consider to adopt this patch in the code of e1000.
in e1000_main.c in the e1000_intr routine I changed:
if (unlikely(!icr)) {
return RTDM_IRQ_NONE; /* Not our interrupt */
}
to
if (unlikely(!icr)) {
return XN_ISR_PROPAGATE; /* Not our interrupt */
}
i.e. I m telling the RTDM to propagate the interrupt.
This small change solved my problem.
Please let me know if my point was clear
Bye,
Dietrich
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