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List:       linux-mmc
Subject:    Re: xHCI problem? [was Re: Erratic USB device behavior and device loss]
From:       Ritesh Raj Sarraf <rrs () researchut ! com>
Date:       2016-09-21 11:54:04
Message-ID: 1474458124.8192.6.camel () researchut ! com
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Hello Ulf,

On Wed, 2016-09-21 at 13:17 +0200, Ulf Hansson wrote:
> 
> I am pretty sure the memstick driver causes additional access to the
> usb device without first calling pm_runtime_get_sync(). To eliminate
> those cases from causing the issues, could you try disable the
> memstick driver all-together?

I'm assuming you are referring to the rtsx_usb_ms driver ?

What is the oddest thing right now, is that none of the rtsx modules are
reported loaded.

rrs@learner:~$ lsmod | grep -i rts
2016-09-21 / 17:07:08 ♒♒♒  ☹  => 1  

where as the module was built for the kernel, and does load when asked manually.

rrs@learner:~$ less /boot/config-4.8.0-rc7alxb+ 
2016-09-21 / 17:07:54 ♒♒♒  ☺  
rrs@learner:~$ find /lib/modules/4.8.0-rc7alxb+/ | grep rtsx
/lib/modules/4.8.0-rc7alxb+/kernel/drivers/mmc/host/rtsx_usb_sdmmc.ko
/lib/modules/4.8.0-rc7alxb+/kernel/drivers/mmc/host/rtsx_pci_sdmmc.ko
/lib/modules/4.8.0-rc7alxb+/kernel/drivers/mfd/rtsx_usb.ko
/lib/modules/4.8.0-rc7alxb+/kernel/drivers/mfd/rtsx_pci.ko
/lib/modules/4.8.0-rc7alxb+/kernel/drivers/memstick/host/rtsx_pci_ms.ko
/lib/modules/4.8.0-rc7alxb+/kernel/drivers/memstick/host/rtsx_usb_ms.ko
2016-09-21 / 17:08:09 ♒♒♒  ☺  

rrs@learner:~$ sudo modprobe rtsx-usb-sdmmc
2016-09-21 / 17:08:46 ♒♒♒  ☺  

rrs@learner:~$ dmesg | tail -n 5
[ 6870.017311] usb 2-4: Device not responding to setup address.
[ 6870.223471] usb 2-4: device not accepting address 19, error -71
[ 6870.223536] usb usb2-port4: unable to enumerate USB device
[ 7958.474543] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure
on pipe A (start=166356 end=166357) time 3 us, min 1073, max 1079, scanline
start 1088, end 1080
[ 9814.785241] usbcore: registered new interface driver rtsx_usb
2016-09-21 / 17:10:07 ♒♒♒  ☺  



- -- 
Ritesh Raj Sarraf
RESEARCHUT - http://www.researchut.com
"Necessity is the mother of invention."
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