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Old 08-24-05, 08:46 AM   #2
Join Date: Jul 2002
Location: Netherlands, Europe
Posts: 2,105
Default Re: X/PC hang by starting xawtv, vncviewer

Your /var/log/messages is full of entries like these:
Aug 24 13:28:39 wurm kernel: NVRM: bad caching on address 0xc2eeb000: actual 0x163 != expected 0x173

The problem is called cache aliasing and can occur when multiple mappings to a certain memory page exist. To fix the problem you need to upgrade your kernel as it is a kernel bug. Not sure if the latest 2.4x kernel fixes the issue, if it doesn't you must upgrade to 2.6.11 or newer.
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