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Hello,

here's what I did so far - changed a few things so it should act almost like Darwin regarding interrupts. Consider this work in progress, it might cause problems on different hardware.
I didn't get any lockups anymore, although sometimes it just sits there several seconds without apparently processing anything besides clock interrupts but it always recovers ( and the delay only happens with USB and audio with interrupts shared active at the same time, like xmms playing something and fsck digging through a USB disk )
Maybe I'll find something to make the delay less annoying.

have fun
Michael


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