On Tue, Jul 10, 2012 at 9:42 PM, Mulyadi Santosa <[email protected]>wrote:
> Hi.. > > On Tue, Jul 10, 2012 at 6:51 PM, Arun KS <[email protected]> wrote: > > Hello Experts, > > > > I have a requirement to change __log_buf memory(kernel printk buffer) > > as non cacheable memory. > > How can I change the page attributes for changing cache policy to non > cacheable? > > I just can give short clue. I think somehow you must find its PTE > entry...there, IIRC there is page attribute that can be changed to > make it uncacheable. > > cross check the Intel processor manual for further clarification (if > it's indeed x86 arch) > > -- > regards, > > Mulyadi Santosa > Freelance Linux trainer and consultant > > blog: the-hydra.blogspot.com > training: mulyaditraining.blogspot.com > > _______________________________________________ > Kernelnewbies mailing list > [email protected] > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > The __log_buf is a static array. Will it be in cacheable page? And by cacheable here, I guess we mean entry present in page cache, right? - Rohan
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