Tejun Heo <htejun@xxxxxxxxx> 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 _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxx https://lists.osdl.org/mailman/listinfo/linux-pm
