From: thomas schorpp <thomas.schorpp@googlemail.com>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: "C. Hemsing" <C.Hemsing@gmx.net>,
linux-media@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: was: af9015, af9013 DVB-T problems. now: Intermittent USB disconnects with many (2.0) high speed devices
Date: Sun, 13 Jun 2010 21:10:00 +0200 [thread overview]
Message-ID: <4C152D08.7060007@gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1006131117530.23535-100000@netrider.rowland.org>
Am 13.06.2010 17:22, schrieb Alan Stern:
> On Sun, 13 Jun 2010, thomas schorpp wrote:
>
>> Am 13.06.2010 15:57, schrieb Alan Stern:
>>> On Sun, 13 Jun 2010, thomas schorpp wrote:
>>>
>>>> ehci-hcd is broken and halts silently or disconnects after hours or a few days, with the wlan usb adapter
>>>
>>> How do you know the bug is in ehci-hcd and not in the hardware?
>>
>> All 3 usb devices and 2 different series VIA usb hosts and Hemsing's and many other broken i2c comms reporter's on linux-media are broken instead?
>
> It's certainly possible and has been known to happen.
>
>> Well, if we get that confirmed, I'll buy 2 of those with NEC chipset:
>> http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=190318779935
>>
>>>
>>>> I was able to catch a dmesg err message like "ehci...force halt... handshake failed" once only.
>>>
>>> Can you please post the error message?
>>
>> Jun 3 08:38:29 tom3 kernel: [75071.004062] ehci_hcd 0000:00:0e.2: force halt; handhake cc9c0814 0000c000 00000000 -> -110
>> Jun 3 08:45:13 tom3 kernel: [75475.004061] ehci_hcd 0000:00:0e.2: force halt; handhake cc9c0814 0000c000 00000000 -> -110
>> Previous debian testing version of Linux tom3 2.6.32-5-686 #1 SMP Tue Jun 1 04:59:47 UTC 2010 i686 GNU/Linux,
>> not yet reproduced with current version.
Reproducible with the new debian testing kernel:
[90395.572222] usb 4-4: USB disconnect, address 3
[90395.585864] wlan0: deauthenticating from 00:19:cb:87:5e:4a by local choice (reason=3)
[90396.100206] usb 4-4: new high speed USB device using ehci_hcd and address 4
[90411.192304] hub 4-0:1.0: unable to enumerate USB device on port 4
[90411.448242] usb 3-2: new full speed USB device using uhci_hcd and address 3
[90411.635297] usb 3-2: not running at top speed; connect to a high speed hub
[90411.757316] usb 3-2: New USB device found, idVendor=148f, idProduct=2573
...
[90412.212601] Registered led device: rt73usb-phy4::quality
[90414.004060] ehci_hcd 0000:00:0e.2: force halt; handhake cca1a814 0000c000 00000000 -> -110
Trying to reproduce in full speed only mode without ehci_hcd driver loaded.
>
> You may need to copy the "broken periodic workaround" code from the
> PCI_VENDOR_ID_INTEL case in ehci_pci_setup(),
> drivers/usb/host/ehci-pci.c into the PCI_VENDOR_ID_VIA case.
Yes, will do this on the machine with the 2.6.34 kernel and watch the dvb-usb stick for disconnects to report.
>
> Alan Stern
>
>
Thank You very much,
y
tom
prev parent reply other threads:[~2010-06-13 19:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-13 7:12 af9015, af9013 DVB-T problems C. Hemsing
2010-06-13 13:19 ` was: af9015, af9013 DVB-T problems. now: Intermittent USB disconnects with many (2.0) high speed devices thomas schorpp
2010-06-13 13:57 ` Alan Stern
2010-06-13 14:21 ` thomas schorpp
2010-06-13 15:22 ` Alan Stern
2010-06-13 19:10 ` thomas schorpp [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4C152D08.7060007@gmail.com \
--to=thomas.schorpp@googlemail.com \
--cc=C.Hemsing@gmx.net \
--cc=linux-media@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=stern@rowland.harvard.edu \
--cc=thomas.schorpp@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.