Re: [PATCH 2.4.32] Fix AVM C4 ISDN card init problems with newer CPUs
From: Willy Tarreau
Date: Fri Aug 04 2006 - 01:16:04 EST
On Thu, Aug 03, 2006 at 06:56:15PM +0100, Alan Cox wrote:
> Ar Iau, 2006-08-03 am 19:53 +0300, ysgrifennodd Jukka Partanen:
> > AVM C4 ISDN NIC: Add three memory barriers, taken from 2.6.7,
> > (they are there in 18.104.22.168 too), to fix module initialization
> > problems appearing with at least some newer Celerons and
> > Pentium III.
> Should be using cpu_relax() I think. Its a polled busy loop so you want
> other CPU threads to run if possible.
Agreed, but I think it should be a second patch since 2.6 would need it
> Otherwise the code seems quite logical depending how c4inmeml is defined.
OK, I'm queuing it for 2.4.34.
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