Re: Problems with EDAC coexisting with BIOS

Alan Cox
2006-05-03T21:33:25Z

On Mer, 2006-05-03 at 21:25 +0100, Tim Small wrote:
> something with NMI-signalled errors, I was wondering what the problems
> with using NMI-signalled ECC errors were?

The big problem with NMI is that it can occur *during* a PCI
configuration sequence (ie during pci_config_* functions). That means we
can't safely do some I/O, especially configuration space I/O in an NMI
handler. At best we could set a flag and catch it afterwards.