[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [5050] uhci: rewrite UHCI emulator, fully async operati
From: |
Max Krasnyansky |
Subject: |
Re: [Qemu-devel] [5050] uhci: rewrite UHCI emulator, fully async operation with multiple outstanding transactions ( Max Krasnyansky) |
Date: |
Thu, 21 Aug 2008 23:07:03 -0700 |
User-agent: |
Thunderbird 2.0.0.16 (X11/20080723) |
Aurelien Jarno wrote:
> I am using QEMU, from the SVN, without KQEMU. The problem does not
> depend of the console used (SDL, VNC or curses). The guest kernel
> outputs the following errors:
> usb 1-2: device not accepting address 2, error -71
> usb 1-2: new full speed USB device using uhci_hcd and address 3
> usb 1-2: device not accepting address 3, error -71
> usb 1-2: new full speed USB device using uhci_hcd and address 4
> usb 1-2: device not accepting address 4, error -71
> usb 1-2: new full speed USB device using uhci_hcd and address 5
> usb 1-2: device not accepting address 5, error -71
>
> You can download the image from:
> http://people.debian.org/~aurel32/qemu/amd64/
>
> It is reproducible with the following command line:
> qemu-system-x86_64 -hda debian_etch_amd64_small.qcow -usbdevice tablet
>
>
> The error can also be reproduced with -usbdevice mouse or -usbdevice
> disk:image.
Turns out I managed to screw up transaction length handling for control
transfers in certain scenarious. Looks like XP and newer kernels are not
sensitive to that.
I just sent out a patch that fixes the regression.
[PATCH] uhci: Fixed length handling for SETUP and OUT tokens
Please confirm that it fixes your setup. I tested XP, your Debian image and
Fedora 9.
Max
- [Qemu-devel] [5050] uhci: rewrite UHCI emulator, fully async operation with multiple outstanding transactions ( Max Krasnyansky), Anthony Liguori, 2008/08/21
- Re: [Qemu-devel] [5050] uhci: rewrite UHCI emulator, fully async operation with multiple outstanding transactions ( Max Krasnyansky), Aurelien Jarno, 2008/08/21
- Re: [Qemu-devel] [5050] uhci: rewrite UHCI emulator, fully async operation with multiple outstanding transactions ( Max Krasnyansky), Anthony Liguori, 2008/08/21
- Re: [Qemu-devel] [5050] uhci: rewrite UHCI emulator, fully async operation with multiple outstanding transactions ( Max Krasnyansky), Anthony Liguori, 2008/08/21
- Re: [Qemu-devel] [5050] uhci: rewrite UHCI emulator, fully async operation with multiple outstanding transactions ( Max Krasnyansky), Max Krasnyansky, 2008/08/21
- Re: [Qemu-devel] [5050] uhci: rewrite UHCI emulator, fully async operation with multiple outstanding transactions ( Max Krasnyansky), Aurelien Jarno, 2008/08/21
- Re: [Qemu-devel] [5050] uhci: rewrite UHCI emulator, fully async operation with multiple outstanding transactions ( Max Krasnyansky), Max Krasnyansky, 2008/08/21
- Re: [Qemu-devel] [5050] uhci: rewrite UHCI emulator, fully async operation with multiple outstanding transactions ( Max Krasnyansky),
Max Krasnyansky <=
- Re: [Qemu-devel] [5050] uhci: rewrite UHCI emulator, fully async operation with multiple outstanding transactions ( Max Krasnyansky), Aurelien Jarno, 2008/08/22