Re: [REGRESSION][BISECTED] usb: hub: total system freeze after running adb

[Mathias Nyman]

On 12/5/25 03:56, Forest wrote:
> On Thu, 4 Dec 2025 01:41:37 +0200, Mathias Nyman wrote:
>
> > If possible, could you try with the same usb debugging enabled as last time,
> > and add HUNG_TASK debugging entries in kernel config:
> >
> > CONFIG_DETECT_HUNG_TASK=y
> > CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=30
> > CONFIG_DETECT_HUNG_TASK_BLOCKER=y
> >
> > And add the following patch to hub driver:
>
> That patch failed to apply, due to tab/space differences. I guess Thunderbird
> might have taken liberties when you sent it. It was easy enough to make those
> edits by hand, though.
>
> The result was again bursts of dmesg output roughly once per second, this time
> 107 lines each. I compared the last three bursts that made it to my redirected
> output file, and they were again the same except for timestamps and a few lines
> being reordered.
>
> A screen photo once again shows newer timestamps than the file. I did not
> read every line in the photo to compare it with the log file, but the last
> dozen lines look the same. I suppose I can send you the photo if you like.

Yes please, small differences, ordering, and timing matter in this case

Thanks
Mathias