Date:   Thu, 16 Mar 2017 11:07:44 -0400 (EDT)
From:   Alan Stern <stern@...land.harvard.edu>
To:     Ulf Hansson <ulf.hansson@...aro.org>
cc:     Diego Viola <diego.viola@...il.com>,
        Greg KH <gregkh@...uxfoundation.org>,
        Wei WANG <wei_wang@...lsil.com.cn>,
        Roger <rogerable@...ltek.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Linux USB List <linux-usb@...r.kernel.org>
Subject: Re: Dell Inspiron 5558/0VNM2T hangs at resume from suspend when USB
 3 is enabled

On Thu, 16 Mar 2017, Ulf Hansson wrote:

> +Alan
> 
> On 15 March 2017 at 15:00, Diego Viola <diego.viola@...il.com> wrote:
> > On Tue, Mar 14, 2017 at 4:15 PM, Diego Viola <diego.viola@...il.com> wrote:
> >> On Tue, Mar 14, 2017 at 2:20 PM, Diego Viola <diego.viola@...il.com> wrote:
> >>> On Thu, Mar 9, 2017 at 2:15 PM, Diego Viola <diego.viola@...il.com> wrote:
> >>>> On Thu, Mar 9, 2017 at 11:11 AM, Diego Viola <diego.viola@...il.com> wrote:
> >>>>> On Wed, Mar 8, 2017 at 5:40 PM, Diego Viola <diego.viola@...il.com> wrote:
> >>>>>> Hi Greg,
> >>>>>>
> >>>>>> On Wed, Mar 8, 2017 at 5:15 PM, Greg KH <gregkh@...uxfoundation.org> wrote:
> >>>>>>> On Wed, Mar 08, 2017 at 03:49:19PM -0300, Diego Viola wrote:
> >>>>>>>> It hangs on resume from suspend if I have USB 3.0 enabled on the BIOS,
> >>>>>>>> it works fine with ehci_hcd or USB 2.0.
> >>>>>>>>
> >>>>>>>> The way I reproduce the problem is with this command:
> >>>>>>>>
> >>>>>>>> $ i3lock && systemctl suspend
> >>>>>>>>
> >>>>>>>> This is what I see on the screen when it hangs:
> >>>>>>>>
> >>>>>>>> https://dl.dropboxusercontent.com/u/6005119/dell/IMG_20170308_095000.jpg
> >>>>>>>> https://dl.dropboxusercontent.com/u/6005119/dell/IMG_20170307_133928.jpg
> >>>>>>>>
> >>>>>>>> Some logs:
> >>>>>>>>
> >>>>>>>> https://dl.dropboxusercontent.com/u/6005119/dell/dmesg1.txt
> >>>>>>>> https://dl.dropboxusercontent.com/u/6005119/dell/dmesg2.txt
> >>>>>>>>
> >>>>>>>> I'm on Arch Linux x86_64, kernel 4.9.11-1-ARCH.
> >>>>>>>>
> >>>>>>>> I also tried Linux 4.10.1 and I could reproduce this problem there as well.
> >>>>>>>>
> >>>>>>>> Please let me know if I could provide more info.
> >>>>>>>
> >>>>>>> Has any previous kernel ever worked properly before?  If so, any chance
> >>>>>>> you can use 'git bisect' to find the offending commit?
> >>>>>>
> >>>>>> I'm not sure, this is my work machine and I've only started using it
> >>>>>> recently (since about a month ago or so).
> >>>>>>
> >>>>>> I will try older kernels and see if I get any different results, I
> >>>>>> will report back in any case.
> >>>>>>
> >>>>>>>
> >>>>>>> And are you sure you have updated your bios to the latest version?
> >>>>>>
> >>>>>> Yes.
> >>>>>>
> >>>>>>>
> >>>>>>> thanks,
> >>>>>>>
> >>>>>>> greg k-h
> >>>>>>
> >>>>>> Thanks,
> >>>>>> Diego
> >>>>>
> >>>>> I found another workaround, I can suspend/resume fine with `i3lock &&
> >>>>> systemctl suspend` if I disconnect/unplug all my USB devices
> >>>>> (keyboard, mouse, etc). This with the default settings in the BIOS
> >>>>> (both USB 2.0 and 3.0 enabled).
> >>>>>
> >>>>> I'm also seeing some messages like this in dmesg:
> >>>>>
> >>>>> [   16.172190] usb 2-6: device descriptor read/64, error -110
> >>>>>
> >>>>> Would this indicate a hardware/firmware/power issue?
> >>>>>
> >>>>> Thanks,
> >>>>> Diego
> >>>>
> >>>> OK, I've built Linux 4.4.52 (I did a localmodconfig) and rebooted into
> >>>> it, I did a suspend/resume and it hanged the first time I tried to
> >>>> resume, which isn't much different than using the latest kernel.
> >>>>
> >>>> My dmesg is still being spammed with these messages:
> >>>>
> >>>> [  260.043673] usb 2-1: Device not responding to setup address.
> >>>> [  260.246918] usb 2-1: device not accepting address 15, error -71
> >>>> [  260.633662] usb 2-1: new high-speed USB device number 17 using xhci_hcd
> >>>> [  261.341340] usb 2-1: USB disconnect, device number 17
> >>>>
> >>>> I guess it's safe to assume at this point that this is a hardware problem?
> >>>>
> >>>> Thanks,
> >>>> Diego
> >>>
> >>> Hello,
> >>>
> >>> I've found something interesting and what it seems to be the cause of
> >>> my problem.
> >>>
> >>> As soon as I boot my system I can see this process being in the D-state:
> >>>
> >>> [root@...ost ~]# ps aux | grep " D"
> >>> root       269  0.0  0.0      0     0 ?        D    14:11   0:00 [rtsx_usb_ms_2]
> >>> root      1424  0.0  0.0  10788  2172 pts/2    S+   14:19   0:00 grep  D
> >>> [root@...ost ~]#
> >>>
> >>> I'm not exactly sure why that is, but if I do a 'rmmod rtsx_usb_ms'
> >>> the problem is gone. I already tried suspending/resuming ~40 times
> >>> after I disabled the module and the suspend/resume problem is gone.
> 
> That's a good observation!
> 
> It suspect the drivers/memstick/host/rtsx_usb_ms.c isn't behaving
> properly from PM point of view. Perhaps it tries to access its device
> while it from a runtime PM point view still is in a runtime suspended
> state. Exactly why I don't know yet.
> 
> Moreover we have had issues with this driver before and its
> corresponding SD card driver in drivers/mmc/host/rtsx_usb_sdmmc.c. On
> top of that, both their corresponding devices shares the same usb mfd
> device as parent, which is managed by drivers/mfd/rtsx_usb.c.
> 
> Unfortunate my knowledge about USB is still in the learning phase,
> however I know well about runtime PM ans system suspend, so perhaps I
> still might be able to help.
> 
> Anyway, I have looped in Alan, let's see if he has some input to this.

Is the rtsx_usb_ms device attached to an xHCI controller?

How is the hang during resume related to the actions of the xhci-hcd 
driver?  (You'll probably need to enable dynamic debugging for xhci-hcd 
and use a network console to get the answer.)

If this problem really is related to xhci-hcd, have you tried bringing 
it to the attention of the xhci-hcd maintainer?

Are you using the most up-to-date version of the kernel?  xhci-hcd is 
still getting fixes at a very high rate.

Alan Stern

> >>>
> >>> Diego
> >>
> >> Adding Roger Tseng to the CC also.
> >>
> >> Diego
> >
> > According to this document:
> >
> > http://downloads.dell.com/manuals/all-products/esuprt_laptop/esuprt_inspiron_laptop/inspiron-15-5558-laptop_reference%20guide_en-us.pdf
> >
> > My computer only has a SD card slot and no MEMSTICK slot.
> >
> > lsusb says this though:
> >
> > Bus 001 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129
> > Card Reader Controller
> >
> > Maybe the driver gets locked up looking for the MEMSTICK slot?
> 
> Yes correct!
> 
> >
> > Diego
> 
> Kind regards
> Uffe
> 

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