On Wed, Nov 05, 2008 at 02:50:01PM +0530, Nobin Mathew wrote: > Hi > > > Code is here > first one USB Virual input devices > > http://lxr.linux.no/linux+v2.6.27.4/drivers/usb/core/hcd-pci.c > > Second one is hp-ilo driver > > http://lxr.linux.no/linux+v2.6.27.4/drivers/misc/hpilo.c I looked for usage of request_irq() and didn't see it in either driver. I was looking for the parameters passed to the request_irq() call. If the IRQ and the "dev_id" parameter are the same for both drivers, I'm not sure how the generic IRQ management code could tell them apart and then might disable the wrong instance when free_irq() is called. Perhaps you already know where the respective request_irq() calls are and can easily determine that both are passing in a NULL for the "dev_id" parameter? If that's not the case, I would be looking for bugs in the generic shared IRQ code. But given shared IRQ experience with older kernels, I'm not inclined to believe there is a problem in the generic IRQ code on newer kernels unless presented with contrary evidence. hth, grant > > Thanks > Nobin Mathew. > > > On Wed, Nov 5, 2008 at 2:06 PM, Jiri Slaby <jirislaby@xxxxxxxxx> wrote: > > On 11/05/2008 08:49 AM, Nobin Mathew wrote: > >> Hi > >> > >> This is the system information X86_64 platform Xeon dual core processor. > >> > >> I saw the pci_disable_device () it is calling pcibios_disable_device > >> () and this is is defined as > >> > >> void pcibios_disable_device (struct pci_dev *dev) > >> { > >> pcibios_disable_resources(dev); > >> if (pcibios_disable_irq) > >> pcibios_disable_irq(dev); > >> } > >> > >> In i386 platform, I could not find a definition for these calls in > >> x86_64 platform, i think it is using i386 platform code. > > > > Well, will you show us the code, so that we needn't to crystal gaze? It's pretty > > hard to say what happens, if we don't see what you do in the driver... > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
