[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] Memory Sharing


At 13:03 +0530 on 26 Jul (1311685428), Lakshitha Harshan wrote:
> I'm doing a research project related to memory sharing. In my project I'm
> trying to share the memory pages in kernel code segments. These kernels are
> identical.
> I have carried out some experiments to analyze these memory pages. Results
> concluded that no modifications occurs on these memory pages at runtime.
> But after sharing these pages using nominate and share functions, 5 memory
> pages calls unshare() operation just after sharing the code pages.
> So my question is, if no modifications occurs at runtime, how could be
> possible to call "unshare()"?

Have you tried tracing the callers of the function to find out what they
are?  The WARN() macro is handy for that - it prints a complete
backtrace of the hypervisor call chain. 


Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Xen Platform Team
Citrix Systems UK Ltd.  (Company #02937203, SL9 0BG)

Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.