Am Donnerstag, 11. August 2005 18:41 schrieben Sie: >>arrays allocated by the driver eat 2kB each, so a stack overflow is very >>likely. Even with 8kB stack it is still not impossible. Using the version >>from 2.6.5 will not be a very good idea I think, it's likely to crash your >>machine one day. >> >:-( >: >>The right solution would be fixing the driver to use kmalloc()/kfree() when >> he really needs the memory. There was a patch only a few days ago that >> tried to do that, but it was not really well done and would have crashed. >> If you are really interested in I can do such a patch. The code of this >> driver sucks universes through nanotubes, but one day someone _will_ have >> to start cleaning this up. > >Define: really interested > >So, probably we are really interested. Though there are a couple of caveats: > >- Testing can be done only very limited. We have only one raid array >available and it is in production
If whatever I do will go wrong you'll see it very fast. Then you can't receive data ;) >- Servers are not in yet, but will been in the next couple of weeks >- As Arjan noted the kernel will be "some vendor 2.6.5". More precisely >sles9 or rhle 3. This is dictated by the setup of informix 10 on those >machines, we are stuck with that unfortunately. To be really interesting >a patch should be backportable to 2.6.5 (or the equivalent rh kernel). This should be rather simple. Just use their kernel sources, copy the files from a newer kernel in and rebuild the module. >- I am currently investigating if other controllers are able to support >this raid array and are supported. If so it might be a better idea to >use those Yes, if you find some which have a driver that smells less it would be a good idea to use them. >- We are willing to offer something in exchange. This ranges from 24 >bottles of beer of your choice to something else. The something else >part needs to be discussed, but the beer part I can be held responsible >for :-) *g* I'll remind you ;) Eike
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