[Qemu-devel] [Bug 544527] Re: usbfs is bugged with >2.6.32.9 and <=2.6.33 (breaks VMWare, Qemu, sane scanners, ...)

[David Kühling]

I'm not very experienced with kernel development, so didn't try to
create a patch for now. It wasn't even immediately obvious were to send
patches to.  If nobody else wants to work on the issue I'll try to
allocate some time for it. Pretty amazing how the bug got in the kernel
in the first place.  I mean, even the simplest USB testcase could have
caught it.

cheers,

David

-- 
usbfs is bugged with >2.6.32.9 and <=2.6.33 (breaks VMWare, Qemu, sane 
scanners, ...)
https://bugs.launchpad.net/bugs/544527
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Status in QEMU: Fix Committed
Status in SANE-backends - Backends for SANE: Fix Committed
Status in Tv Time: Fix Committed
Status in Virtualbox: Fix Committed
Status in “linux” package in Ubuntu: Fix Committed

Bug description:
Binary package hint: tvtime

There's a problem with isochronous and usbfs, suse tried to improve usbfs but 
it end up that it broke usbfs.
For isochronous the entire packet needs to be copied and not only a part of it.

http://lkml.org/lkml/2010/2/26/490  (Report)
http://lkml.org/lkml/2010/2/27/226 (Bugfix)

please merge this bugfix asap.

ProblemType: Bug
Architecture: amd64
Date: Mon Mar 22 21:09:00 2010
DistroRelease: Ubuntu 10.04
LiveMediaBuild: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100322)
Package: tvtime 1.0.2-5ubuntu2
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
SourcePackage: tvtime
Uname: Linux 2.6.32-16-generic x86_64