Re: [PATCH] USB: Fix the issue of task recovery failure caused by USB status when S4 wakes up

duanchenghao
2024-10-16T09:06:42Z

Hi Saranya,

在 2024-10-16星期三的 08:57 +0000，Gopal, Saranya写道：
> Hi Duan Chenghao,
>
> > -----Original Message-----
> > From: duanchenghao <duanchenghao@kylinos.cn>
> > Sent: Monday, October 14, 2024 7:11 AM
> > To: Alan Stern <stern@rowland.harvard.edu>; Gopal, Saranya
> > <saranya.gopal@intel.com>
> > Cc: Rafael J. Wysocki <rafael@kernel.org>; Hongyu Xie
> > <xy521521@gmail.com>; gregkh@linuxfoundation.org; linux-
> > kernel@vger.kernel.org; linux-pm@vger.kernel.org; linux-
> > usb@vger.kernel.org; niko.mauno@vaisala.com; pavel@ucw.cz;
> > stanley_chang@realtek.com; tj@kernel.org; Hongyu Xie
> > <xiehongyu1@kylinos.cn>
> > Subject: Re: [PATCH] USB: Fix the issue of task recovery failure
> > caused
> > by USB status when S4 wakes up
> >
> > 在 2024-10-12星期六的 11:01 -0400，Alan Stern写道：
> > Hi Saranya,
> >
> > > On Sat, Oct 12, 2024 at 05:51:41PM +0800, duanchenghao wrote:
> > > >
> > > > Hi Alan,
> > > >
> > > > The V3 patch has been sent. Please review it to check if it
> > > > aligns
> > > > with
> > > > the solution you described.
> > >
> > > Yes, that is what I meant.
> > >
> > > Have you and all the other people at kylinos.cn tested the patch
> > > to
> > > make
> > > sure that it fixes the problem?
> > >
> > > Alan Stern
> >
> > If you have time, you can arrange to test your issue using the V3
> > version. This way, we can jointly verify whether the problem has
> > been
> > resolved.
> >
> My testing completed today.
> I couldn't reproduce the issue when I ran 1500 S4 cycles with v3
> version of your patch.
> The issue was anyway rare before with an occurrence rate of 20/1500
> cycles in our system.
> So, please conclude after verifying from your side also.
>

Thank you very much for your verification. I am currently conducting
parallel testing on multiple machines, and the results should be
available soon as well.

Thanks,
Duan Chenghao

> Thanks,
> Saranya
>
> > Thanks
> > Duan Chenghao
> >
> >
>