Messages in this thread | | | Date | Wed, 28 Apr 2004 15:52:36 -0700 | From | Greg KH <> | Subject | Re: userspace pci config space accesses |
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On Wed, Apr 28, 2004 at 04:49:02PM -0500, Brian King wrote: > I recently ran into a problem where lspci was trying to read pci config > space > of a pci adapter while the device driver for that adapter was running BIST > on it. On ppc64, this resulted in a PCI error and puts the slot into an > error state making it unusable for the remainder of that system boot. > Should there be some blocking in place so that userspace pci config > reads will not occur in these windows or is using tools like lspci > user beware?
There already is a pci_config_lock that should be grabbed when accessing pci config space. It sounds like the driver needs to play a bit nicer when it's running a self test :)
What driver is doing this?
thanks,
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