On Wed, Apr 14, 2010 at 8:04 PM, Vikash Kumar <vikashskumar@xxxxxxxxx> wrote: > Hi everyone, > > I am writing a simple memory manager for my application which will > free any excess memory being used by my modules, so that it's > available again for use. My modules allocate memory using alloc_page & > kmem_cache_alloc and so the memory manager uses put_page & > kmem_cache_free respectively to free up the memory which is not in > use. > > The problem I am facing is, even after I free the memory using > put_page & kmem_cache_free, my modules are not able to get the free > memory. I have written a test code which allocates a lot of memory in > loop and when out of memory sleeps on memory manager to free up the > memory. Memory manager successfully executes free code and wakes up > the sleeping process as memory should be available now. Interestingly > the alloc_page / kmem_cache_alloc calls still fail to allocate > memory. Now, I am clueless why it is happening so seeking help. Random guess... Are you sure it is still free between your free and allocate. ie.. no one else comes in between takes away your memory ? Thanks - Manish > > > Regards, > Vikash Kumar > http://VikashKumar.com/ > > -- > To unsubscribe from this list: send an email with > "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx > Please read the FAQ at http://kernelnewbies.org/FAQ > > -- Thanks - Manish ================================== [$\*.^ -- I miss being one of them ================================== -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
