On Thu, Jan 18, 2007 at 06:22:10AM -0800, Karthik.G. wrote: > Can someone kindly let me know if it is possible to access the user > process' address space from a kernel thread ? No. > I tried changing the mm pointer from NULL to a user space mm but it > OOPSed giving page fault error.(Or is there anything else i need to > apart from resetting the mm pointer and active_mm pointer to user > thread's mm and active_mm?) > I also tried to tried to reset the cr3 register of the processor > executing the kernel thread to the user thread's cr3(My machine has > 2 processors) but it didnt help either. So you already found out that it indeed doesn't work :) > I am stuck with this for a loong time now.Kindly let me know if this > is possible. Or is there anyother way to try this? The usual trick: create a device driver, use procfs (deprecated) or sysfs file, or use a netlink socket. It all depends on what you want to achieve. If you could tell a bit more about what you want to achieve, we can help you what to do. Erik -- They're all fools. Don't worry. Darwin may be slow, but he'll eventually get them. -- Matthew Lammers in alt.sysadmin.recovery
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