Re: Promise, DMA and RAID5 problems running 2.4.1

[Alan Cox]

> It is known bug which I reported to Andre already. Open
> drivers/ide/ide.c in favorite text editor, and replace strange
> body of ide_delay_50ms() with simple mdelay(50). Promise driver
> invokes ide_delay_50ms with interrupts disabled, so it freezes
> here forever. If you have NMI watchdog, you'll get nice oopses.

Its a bug in the promise driver. ide_delay_50ms() is being friendly to the
rest of the box. If the reset path for the promise cant be polite then it
should use mdelay() itself.