Hi
Thanks Baolu very much!
Because of the reason usb3 module can not be used, it will affect the strong of usb3 module;
1, the xhci control is suspend and resume, why to re-allocate memory?
2, whether we can allocate memory for more times, so we can avoid the problem;
Best Regards,
Pengcheng Li
> -----Original Message-----
> From: Lu Baolu [mailto:baolu.lu@xxxxxxxxxxxxxxx]
> Sent: Friday, March 25, 2016 10:19 PM
> To: Lipengcheng; Mathias Nyman; gregkh@xxxxxxxxxxxxxxxxxxx
> Cc: stern@xxxxxxxxxxxxxxxxxxx; balbi@xxxxxx; chasemetzger15@xxxxxxxxx; mjg59@xxxxxxxxxx; kborer@xxxxxxxxx; jun.li@xxxxxxxxxxxxx;
> Robert.Schlabbach@xxxxxxx; linux-usb@xxxxxxxxxxxxxxx
> Subject: Re: 答复: 答复: 答复: 答复: 【xhci】suspend and resume core dump problem
>
> Hi,
>
> On 03/25/2016 03:39 PM, Lipengcheng wrote:
> > Hi,
> > Thanks Baolu very much!
> > The kernel is 3.10.Before the problem is inevitable emergence. But we fix patch number:b630d4b9d05ba2e66878ca4614946d0f950d4111
> and your suggest.
> > Then we resume and suspend the seventh and it is ok only if the usb3 can not work. So the changes are effective.
>
> Thanks for testing.
>
> > In the wrong state which the usb3 can not work, we continue to suspend and resume. It will be core dump. Should it be a normal
> phenomenon?
>
> dpm_run_callback(): platform_pm_resume+0x0/0x5c returns -12
> PM: Device hiusb-xhci.0 failed to resume: error -12
>
>
> Your xHCI host controller failed to resume. As the result, your usb3 devices should not work. You couldn't suspend it once more either.
>
> Best Regards,
> Baolu
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