Tejun Heo <[EMAIL PROTECTED]> writes: > > Let's assume there's a device which shares its INTX IRQ line with > another device and the other one is already initialized. During boot, > due to BIOS's fault, bad hardware design or sheer bad luck, the device > has got a pending IRQ.
This seems to be also common after kexec during kexec crashdumps where the device just continues doing what it did before the crash. > This patch expands the pci_set_master() approach. Instead of enabling > the device in one go, it's done in two steps - prepare and activate. > 'prepare' enables access to PCI configuration, I hope there aren't any new erratas triggered by this. Perhaps it would make sense to add some paranoia sleeps at least before touching other state? -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
