Re: Hardlocks with 2.4.21-pre5, pdc202xx_new (PDC20269) and shared

[Alan Cox]

On Wed, 2003-03-19 at 22:16, Wolfram Schlich wrote:
> When one of the Promise controllers is sharing the same IRQ with one of
> the NICs (don't matter which, I tried all) and data is copied *to* the
> machine over the network, the system deadlocks. When data is copied
> *from* the system over the network, it works all ok. Unfortunately the
> system BIOS doesn't give me any possibility of setting the IRQ
> channels by hand, so all I can do is put the cards into other slots.
> 

Thats very useful information. There certain have been (and it seems
still are) some cases with shared IRQ that are not quite handled right.
The 2.4.21pre5/pre5-ac work has partly been about fixing it. Deadlocks
suprise me however, since the problems I've seen have been I/O
errors.

However there is another known problem that does cause deadlocks with
the AMD76x, especially if the onboard IDE is used. Shove a PS/2 mouse
in the box, reboot and retest - if you dont already have one