On Fri, 21 Mar 2008, Ingo Molnar wrote:

quoted text
> the best i found for lockdep was to include a fair number of them, and 
> to skip the top 3. struct vm_area that vmalloc uses isnt space-critical, 
> so 4-8 entries with a 3 skip would be quite ok. (but can be more than 
> that as well)

STACKTRACE depends on STACKTRACE_SUPPORT which is not available on 
all arches? alpha blackfin ia64 etc are missing it?

I thought there were also issues on x86 with optimizations leading to 
weird stacktraces?


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