Jeroen Van den Keybus wrote: > > arch_setup_msi_irq() creates an IRQ on-the-fly from the current > descriptor which is being converted to an MSI interrupt using > pci_msi_enable(). From that point, the I-pipe might have an obsolete > view of the interrupt map. I suspect an I-pipe issue here. > > > > I think the I-pipe is alright. It only cares for the actual interrupt > numbers and irq_desc[] should be current with these numbers upon the > ipipe_virtualize_irq call, which occurs only after enabling MSI, right ? >
The I-pipe virtualizes all IOAPIC and ISA interrupts upon startup. Then, any code calling pci_msi_enable() would end up allocating a new MSI interrupt vector. > Currently it looks like every PCI config space access instruction in > read_msi_msg() (used to perform set_msi_irq_affinity) freezes the > machine. I have absolutely no clue yet why this happens. > Wild trivial guess, is the irq parameter the expected one, since the rest depends on it? > Jeroen. > > > -- > Philippe. > > -- Philippe. _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
