Re: Regression: plugging in USB scanner breaks all USB functionality #forregzbot

From: Greg KH
Date: Sat Dec 04 2021 - 05:03:28 EST


On Fri, Dec 03, 2021 at 06:24:52PM +0100, Thorsten Leemhuis wrote:
> On 02.12.21 16:13, Thorsten Leemhuis wrote:
> > Hi, this is your Linux kernel regression tracker speaking.
> >
> > Thanks for the report.
> >
> > Top-posting for once, to make this easy accessible to everyone.
> >
> > FWIW, 5.14 is EOL, so it might not be fixed there. As the problem is in
> > newer kernels as well, I suspect that it was a change applies to 5.15 or
> > 5.16 that got backported. Maybe one of the developers might have an idea
> > which commit causes it. If that's not the case you likely should try a
> > bisection to find the culprit. Performing one between v5.14.11..v5.14.14
> > is likely the easiest and quickest way to find it.
> >
> > To be sure this issue doesn't fall through the cracks unnoticed, I'm
> > adding it to regzbot, my Linux kernel regression tracking bot:
> >
> > #regzbot ^introduced v5.14.11..v5.14.14
> > #regzbot title usb: plugging in USB scanner breaks all USB functionality
> > [regression present in 5.15.2 und 5.16-rc3, too]
> > #regzbot ignore-activity
>
> #regzbot introduced ff0e50d3564f
> #regzbot fixed-by 385b5b09c3546c87cfb730b76abe5f8d73c579a2

Odd, where did that git commit id come from? I don't see it in
linux-next or Linus's tree.

confused,

greg k-h