From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1O65wd-0000s0-6Q for qemu-devel@nongnu.org; Sun, 25 Apr 2010 13:48:39 -0400 Received: from [140.186.70.92] (port=37596 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1O65wa-0000rs-Tt for qemu-devel@nongnu.org; Sun, 25 Apr 2010 13:48:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1O65wZ-0003h1-Nn for qemu-devel@nongnu.org; Sun, 25 Apr 2010 13:48:36 -0400 Received: from sj-iport-6.cisco.com ([171.71.176.117]:50412) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1O65wZ-0003gS-IH for qemu-devel@nongnu.org; Sun, 25 Apr 2010 13:48:35 -0400 From: David Ahern Date: Sun, 25 Apr 2010 11:48:29 -0600 Message-Id: <1272217710-28120-1-git-send-email-daahern@cisco.com> Subject: [Qemu-devel] [PATCH] ehci: Improve detection of invalid entries in the async schedule List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: jan.kiszka@web.de Cc: qemu-devel@nongnu.org Hi Jan: Another patch for the ehci branch - emptying out my patch queue as I need to set this aside for a while. I am testing qemu and qemu-kvm with 3 different USB keys -- all Kingstons of various sizes 1 GB, 4GB and 8GB. I am definitely seeing different behaviors with the 4GB and 8GB working really well. With the 4GB key I am seeing data rates of 5MB/sec with qemu and close to 8MB/sec with kvm. The 1 GB key hits hiccups from time to time. If you see the stall enable debugging in usb-linux: --- a/usb-linux.c +++ b/usb-linux.c @@ -243,7 +243,7 @@ static void async_complete(void *opaque) p = aurb->packet; - DPRINTF("husb: async completed. aurb %p status %d alen %d\n", + printf("husb: async completed. aurb %p status %d alen %d\n", aurb, aurb->urb.status, aurb->urb.actual_length); if (p) { David