I'm trying to debug a rather difficult data-overwriting problem, and it
would be a big help to be able to use a data breakpoint.
Is there any easy way of doing this? I'd prefer not to use a kernel
debugger, because the address of the breakpoint and the time when it's
needed are determined dynamically.
Does anybody have a little lightweight procedure for setting one of the
x86's debug registers to point to a particular location in kernel memory
space? I don't care if the whole system crashes when the debug exception
occurs, just so long as I can get a stack trace and find out where the
overwrite comes from.
Alan Stern
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