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?
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.
The disconnects with dvb-usb need reboot cause driver cannot be removed with modprobe.
That sounds like it might be a bug in dvb-usb driver. It always should
be possible to remove the driver.
Sure.
This long standing bug is really nasty and makes permanent high speed usb connections unusable on Linux,
at least with this VIA hardware.
No debug parms in modules, we need to ask linux-usb how to debug this.
You can start by building a kernel with CONFIG_USB_DEBUG enabled.
Yes, will do it, thx.
Alan Stern
y
tom
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