Carl Fink wrote:
Removing the second SODIMM from the laptop had no effect, but removing the first (and swapping the second into slot #1) seems to have stopped the freezes, at least on ten minutes of work. So maybe a combination of kernel and hardware problems?
Since you suspect ram problems, i suggest you to try memtest86 or memtest86+ and run one of them as long as you can, to stress your RAM and to see if there are any errors. They are not infallible but can detect most ram problems.
You can install the debian packages or download the floppy or the iso bootable images from their sites:
memtest86: http://www.memtest86.com memtest86+: http://www.memtest.org Good luck. Cesare.