Hello, On Wed, Nov 23, 2011 at 2:47 PM, Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> wrote: >> Weird, that basically means that somehow pci_iomap() isn't >> synchronous. ie. you need to way some time after pci_iomap() before >> being able to access the mapped address. Seems like arch / pci >> weirdness. Jesse, Russell, any ideas? > > As Russel said, pci_iomap shouldn't be async. But maybe something else > in the init function is doing a chip reset or causing the chip to go > off into the weeds for a short time? That's generally the cause of > target timeouts for PCI devices. Yeah, that's much more plausible. Weird that it doesn't happen on x86 tho. Maybe different timeouts? Pratyush, can you look at bus trace and see what's going on? Thanks. -- tejun -- 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
