kernel freeze with 1GB and SMP

[David Geldreich <David.Geldreich@xxxxxxxxxxxxxxx>]

    Hello v4l users/developpers,

    I am currently trying to solve a problem with a v4l2 driver for Matrox Meteor2 frame grabber (thanks to Cord Seel of
emlix.com).

    This driver uses highmemory to store a ring buffer when streaming video. On a 512Mb machine, I limit the memory to
500Meg (with mem=500M) and so the driver got 12Mb to use. This works fine with a non-SMP kernel (2.4.17) but with an SMP
kernel it seems that after ioremapping the physical high memory to virtual adress space the kernel freeze.

    Does anyone knows of a v4l2 (or other) driver using this highmemory technique and that has no problem on an SMP
kernel ?

    Thanks in advance.