Hi Norman, Do you mean that I can't "detach" a virtual mapping from a dataspace?
If so, this could in fact be a problem for us since we need to be able to perform re-mapping. If it does not mean this, then how do I detach? ;-)
Thanks, Daniel
On 07/18/2011 03:10 AM, Norman Feske wrote:
Hi Daniel,
the support for managed dataspaces on Fiasco.OC has now become available with SVN revision 161. As reference of how this feature can be used, you can find a ready-to-use run script at 'base/run/rm_fault.run'. To execute the test case, just issue 'make run/rm_fault' from your build directory.
We have also used a slightly improved version of your test case for validating the page-fault handling code. The first improvement is the initialization order of the '_size' and '_rm' members of 'Physical_backing_store'. In the original version, an undefined value was passed as argument to the '_rm' constructor. The second improvement is the format string used to read values from the managed dataspace. Because the fresh allocated backing-store dataspace is initialized with zeros, %c won't show anything meaningful. Hence, the format string was changed to print integer values instead. Please find the new version (including a run script) attached.
One known limitation with managed dataspaces on Fiasco.OC is worth mentioning: Detaching a managed dataspace won't flush the corresponding region of the virtual address space of the client. This is a known (but small) issue resulting in the message "unmapping of managed dataspaces not yet supported" when the test case exits. Please give us a hint when this limitation becomes a problem for you.
Cheers Norman
On 07/16/2011 11:03 AM, Norman Feske wrote:
Hi Daniel,
I just want to let you know that we identified the problem yesterday. Please expect the fix to be available at our SVN as of mid next week.
Best regards Norman
On 07/14/2011 06:31 PM, Daniel Waddington wrote:
Hi Stefan, Not to rush you, but any idea how long a fix will be? (Just so I can re-prioritize if need be)
Thanks, Daniel
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