Re: simple pnp bios io resources bug makes system unusable

From: Adam Belay (
Date: Tue Jul 01 2003 - 17:37:39 EST

On Tue, Jul 01, 2003 at 01:54:10AM -0400, CarlosRomero wrote:
> my one line patch just skips an io registration with a simple sanity check.
> never once have i heard a device with an ioport of 0x0.

AT DMA controller as stated in my other message, is one example.

> question is why it happens and only once.

It only happens once because in 99% of cases the entire device is disabled,
not just an individual range.

> (also noticing cutoff in /sys/devices/pci0/*/name)

There is a hard limit for device name length, see include/linux/device.h.
That is probably the cause.

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