Re: PCI bus chanages from 2.2.x to 3.x/4.x and data corruption.

1999-05-30 Thread Luigi Rizzo
> > > It may be a compiler optimisation. > > > > i think all memory-mapped registers should be declared "volatile" to > > avoid such things occur. I remember when i was looking at both the > > meteor and bt848 drivers, there was some confusion about it. > > Depending on when you looked, the stuff

Re: PCI bus chanages from 2.2.x to 3.x/4.x and data corruption.

1999-05-26 Thread Luigi Rizzo
> Please read this. It affects our commercial users. > > I'm trying to find out if/how we initialise the PCI bus and any > memory controllers differently in 3.x compared to 2.2.x > > Since upgrading from 2.2.x to 3.x or 4.x, many many users have > noticed garbage on the video grabbed by the bt848

PCI bus chanages from 2.2.x to 3.x/4.x and data corruption.

1999-05-25 Thread Roger Hardiman
Please read this. It affects our commercial users. I'm trying to find out if/how we initialise the PCI bus and any memory controllers differently in 3.x compared to 2.2.x Since upgrading from 2.2.x to 3.x or 4.x, many many users have noticed garbage on the video grabbed by the bt848 in their Vide