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

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Hi Duan Chenghao,

> -----Original Message-----
> From: duanchenghao <duanchenghao@xxxxxxxxxx>
> Sent: Monday, October 14, 2024 7:11 AM
> To: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>; Gopal, Saranya
> <saranya.gopal@xxxxxxxxx>
> Cc: Rafael J. Wysocki <rafael@xxxxxxxxxx>; Hongyu Xie
> <xy521521@xxxxxxxxx>; gregkh@xxxxxxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; linux-pm@xxxxxxxxxxxxxxx; linux-
> usb@xxxxxxxxxxxxxxx; niko.mauno@xxxxxxxxxxx; pavel@xxxxxx;
> stanley_chang@xxxxxxxxxxx; tj@xxxxxxxxxx; Hongyu Xie
> <xiehongyu1@xxxxxxxxxx>
> 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.

Thanks,
Saranya

> Thanks
> Duan Chenghao
> 
> 





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