Re: usb: dwc3: some USB devices not working after 6.4.8

From: Thinh Nguyen
Date: Thu Sep 07 2023 - 19:56:13 EST


On Fri, Sep 08, 2023, Kenta Sato wrote:
> On Wed, Sep 6, 2023 at 10:32 AM Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx> wrote:
> Hi Thinh,
>
> I tested your patch with 6.5.1. It seems to solve the issue and the
> kernel worked the same as 6.4.7.
>
> I attached three log (dmesg) files:
> - withpatch.log --- 6.5.1 + patch
> The kernel could detect both USB devices. No "-ETIMEDOUT: failed to
> initialize core" message.
> - nopatch.log --- 6.5.1 without any patches (case 1)
> The kernel could detect NETGEAR A6210 but not BUFFALO USB Flash Disk.
> That was happening less often (about 1 time per 5 boots).
> - nopatch-succ.log --- 6.5.1 without any patches (case 2)
> The kernel could detect both USB devices even if it showed
> "-ETIMEDOUT: failed to initialize core".
>
> Please let me know if you need anything else.
>
> Thank you.
> Kenta
>

Thanks for the report and the test!

I'll prepare a proper patch when v6.6 rc-1 is released. I need to
cleanup and reduce some of the delays in this experiment.

BR,
Thinh