Thank you for clearing my doubt. On Mon, Feb 20, 2012 at 8:39 PM, Dave Hylands <dhylands@xxxxxxxxx> wrote: > Hi Subin, > > On Mon, Feb 20, 2012 at 6:47 PM, subin gangadharan > <subingangadharan@xxxxxxxxx> wrote: >> Hi All, >> >> Please correct me if I am wrong. In linux each process will have its >> own page tables, so when a interrupt happens processor will switch to >> interrupt context >> and execute the proper handler. So my doubt, if this is the case, >> interrupt hanlder will be using the pagetables of the interrupted >> process or is there a separate page table for this. > > Yep - that's right. Conceptually you can imagine that the kernel page > tables are replicated in each process, so when the interrupt occurs, > the kernel mappings will always be in effect regardless of which task > is running. How this is actually achieved may vary from architecture > to architecture. > > -- > Dave Hylands > Shuswap, BC, Canada > http://www.davehylands.com -- With Regards Subin Gangadharan I am not afraid and I am also not afraid of being afraid. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
