CreateFileMapping failed with OS status 1816 (Not enough quotais available to process this command)
in [Win32 Kernel]
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From: Stefan Kuhr on 30 Mar 2010 12:58 Hi Christoph, On 3/30/2010 5:07 PM, Christoph Rupp wrote: > Hi, > > I have a database library which uses memory mapped I/O to read pages > (usually 64k) from the database file. If this file becomes huge, then > i get above error on Win XP 32bit. > > I did some research about this and wanted to check with you what i > found out. Also, i have some ideas for solutions and want to verify > what is feasible. > > Here's a screenshot of my application in the task manager. > (highlighted in blue) > http://crupp.de/taskmanager.png > > From what i discovered, i'm hitting some wall regarding either paged > or non-paged memory. I guess it's the non-paged, although the limits > are quite low (450k). Am i right with that guess? > > My preferred solution (rather a workaround) for that problem is that i > can somehow query the amount of available pool memory and then try not > to exceed it (= set my internal caching limits). But i have not found > a SDK function which gives me this setting. Is there such a function? > > I also discovered that i can change registry settings (or maybe even > boot.ini?) to avoid that problem, but that's not an acceptable > workaround for most of my users. > > Another solution would be to fall back to ReadFile()/WriteFile() when > i hit this error. > > Opinions are very welcome. > > Thanks a lot > Christoph > The amount of kernel object handles looks suspicious to me. Do you have a handle leak? What kind of handles are these? NP memory usage for this process looks high as well. -- S |