Re: New USB stack on FreeBSD w/Linux emulation layer coming
David Brownell <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Monday 21 May 2007, Oliver Neukum wrote: > Am Mittwoch, 16. Mai 2007 16:41 schrieb David Brownell: > > > in that when you have > > > pre-allocated all buffers and all USB host controller descriptors, you will > > > never get in the situation of not being able to allocate transfer descriptors > > > on the fly, like done on Linux. > > > > That's not a failure mode that's been often observed on Linux. (Never, > > in my own experience... which I admit has not focussed on that particular > > type of stress load.) So it's hard to argue that it should motivate a > > redesign of core APIs. > > We are seeing report of the networking stack exhausting the atomic > pool. They are rare these days, but do exist. But transfer descriptors don't come from there. ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel