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From: lkcl . <luke.leighton@gmail.com>
To: ath9k-devel@lists.ath9k.org
Subject: [ath9k-devel] EOMA68-A20 (allwinner sunxi a20) 4.7.0-rc2 ath9k_htc "ath9k_htc: Unable to allocate URBs" issue
Date: Sun, 24 Jul 2016 15:51:01 +0100	[thread overview]
Message-ID: <CAPweEDzap+wRsPUZLOmBeKFetCVezC8bUdQ4J+APUMgGGZ3L_g@mail.gmail.com> (raw)

hi folks, we're running a crowdfunding campaign live at the moment on
crowdsupply so it is a little more prominent than usual debugging
issues: ath9k_htc has the "unable to allocate urbs" issue which has
cropped up a number of times in the past, since 2013 and even 2010.

i'm plugging in a powered USB3 Hub into the OTG port (set up as a USB
Host).  the OTG port is USB2.  (i don't yet have access to a powered
USB2-only hub)


this is what i get:

[  146.752856] usb 5-1.4: new high-speed USB device number 7 using musb-hdrc
[  146.931295] usb 5-1.4: ath9k_htc: Firmware ath9k_htc/htc_7010-1.4.0.fw reques
ted
[  146.938943] usbcore: registered new interface driver ath9k_htc
[  147.051422] usb 5-1.4: ath9k_htc: Transferred FW: ath9k_htc/htc_7010-1.4.0.fw
, size: 72812
[  147.060165] usb 5-1.4: ath9k_htc: Unable to allocate URBs
[  147.066080] usb 5-1.4: ath9k_htc: USB layer deinitialized
[  153.176102] usb 5-1.4: USB disconnect, device number 7

now, here's the really strange thing: this issue does *NOT* occur if
the ath9k_htc 9271 dongle is plugged in as the very first device (but
we get additional problems)  here's the sequences that i've tried so
far:

* plug in TP-Link 9271 dongle: works fine
* plug in Logitech dual-endpoint (hybrid usb-hid keyboard and usb-hid trackpad):
  keyboard works, TRACKPAD DOES NOT
* unplug either device and re-plug them back in, result is:

[  804.942464] usb 5-1: new high-speed USB device number 58 using musb-hdrc
[  805.482464] usb 5-1: new high-speed USB device number 59 using musb-hdrc
[  806.022463] usb 5-1: new high-speed USB device number 60 using musb-hdrc
[  806.602464] usb 5-1: new high-speed USB device number 61 using musb-hdrc
[  807.182479] usb 5-1: new high-speed USB device number 62 using musb-hdrc

if the hub is then unplugged it is no longer recognised.  plugging in
any usb device directly into the usb port is also no longer
recognised.


second sequence attempted:

* plug in Logitech dual-endpoint device: works fine
* plug in TP-Link 9271 dongle: Unable to allocate URBs
* unplug both devices, plug something (anything) back in: new
high-speed number 58 59 60 61 62 .... one every second

third sequence attempted:

* plug in Logitech dual-endpoint device: works fine
* plug in ASIX88xxx USB-ETH dongle: works fine
* plug in *SECOND* ASIX88xx USB-ETH dongle: works fine
* plug in TP-Link 9271: wark, wark


in essence, then, it would seem as if the TP-Link 9271 is
destabilising the usb bus infrastructure.

any additional information needed, please do let me know.

l.

             reply	other threads:[~2016-07-24 14:51 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-24 14:51 lkcl . [this message]
2016-07-24 15:01 ` [ath9k-devel] EOMA68-A20 (allwinner sunxi a20) 4.7.0-rc2 ath9k_htc "ath9k_htc: Unable to allocate URBs" issue lkcl .
2016-07-24 15:14   ` lkcl .
2016-07-24 16:16   ` Oleksij Rempel
2016-07-24 18:24     ` lkcl .
2016-07-24 19:18       ` Oleksij Rempel
2016-07-24 19:38         ` lkcl .
2016-07-24 19:40           ` Oleksij Rempel
2016-07-24 19:58             ` lkcl .
     [not found]               ` <01d3ea7b-6fe3-a77a-1351-6a40d88f061a@rempel-privat.de>
2016-07-25  5:07                 ` [ath9k-devel] Fwd: " fixed-term.Oleksij.Rempel
2016-07-25  5:37                   ` lkcl .

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