On Wed, Oct 26, 2011 at 02:01:51PM +0200, Bart Hartgers wrote: > 2011/10/26 Greg KH <gregkh@xxxxxxx>: > > On Wed, Oct 26, 2011 at 01:29:42PM +0200, Bart Hartgers wrote: > >> Hi, > >> > >> This patch for the usb serial ark3116 driver fixes an initialisation > >> ordering bug that gets triggered on hotplug when using at least recent > >> debian/ubuntu userspace. Without it, ark3116 serial cables don't work. > >> > >> Patch is against 3.1. > > > > Should this also be backported to older kernels? When did this problem > > first show up? > > > The problem is triggered by a combination of the new driver (>=2.6.34) > and recent-ish userspace versions. I do not know exactly what > userspace bit causes the bug to happen. I got the first bug reports in > the past weeks/month from people using debian-testing and arch-linux, > using kernel 3.0. I could not reproduce the problem on ubuntu 11.04 > (2.6.38&3.0), but fortunately, it triggered when I upgraded to ubuntu > 11.10 (3.0) ;-). > > So backporting it to 3.0 and perhaps 2.6.3[89] will definitely be > good. For older kernels it is only needed if they are used in > combination with more modern userspace. Ok, I'll add this to 3.0-stable when it hits Linus's tree, the .38 and .39 kernels are no longer being maintained. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
