BTW, Pete, I add the following option on VMware WS 5.5 debug binary to dump the USB IO.
usb.analyzer.enable = "TRUE" So you don't have to use the usbmon to do that. Chris On Sun, Oct 02, 2005 at 03:08:29PM -0700, Pete Zaitcev wrote: > On Sat, 1 Oct 2005 16:20:59 -0400, Christopher Li <[EMAIL PROTECTED]> wrote: > > > I hit this limit with running ehci in the VM. The a single ehci > > qTD transfer buffer can be 5 pages long, that is 20K. [...] > > Even 16K is too much, IMHO. > > > I can complicate the user space part to work around that, > > but it seems much simpler just allow usbdevfs to accept bigger buffers. > > It seems, yes. However, I assure you that this is not going to > work for anyone who has anything reasonable swapped out, because > of the kmalloc(). > > 16K is an order 2 allocation on systems with 4KB pages, such as > Opteron. It kinda sorta works, but not really. > > This looks like a requirement to think about a better API. Also, > the things that Harald was trying to fix, with pids and signals, > just tell me that something was really wrong from the start. > > -- Pete > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
