[Cbe-oss-dev] Context switching while page fault handling and warning

Benjamin Herrenschmidt benh at kernel.crashing.org
Tue Jun 20 17:05:43 EST 2006


On Tue, 2006-06-20 at 16:17 +1000, Benjamin Herrenschmidt wrote:
> And a similar bug in wait_suspend_mfc_complete() ...

Which is still not out problem...

Another one now in spufs, in file.c, we map problem state registers
without _PAGE_GUARDED. Fixing that for all occurences of mmap except
local store fixed the wrong address problem.

Now the test case still hangs because we are getting a stop&signal after
the DMA completes and we never get to read that damn tag from the MFC, I
don't know how that is supposed to work... I wonder if we can access
problem state registers after we got a stop & exit ? And why did we get
that in the first place ? I'm not yet that familiar with the intrinsics
of the SPEs there...

Ben.




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