From: Dave Hansen <dave@sr71.net>
To: gregkh <gregkh@suse.de>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
linux-usb@vger.kernel.org
Subject: USB disconnects every 30 seconds (2.6.27-rc8)
Date: Fri, 03 Oct 2008 10:45:39 -0700 [thread overview]
Message-ID: <1223055939.7944.32.camel@nimitz> (raw)
I'm seeing some odd USB behavior with newer kernels
(2.6.27-rc8-00062-g330f647 to be exact). Almost exactly, every 30
seconds, one of my USB hubs disconnects. At first, I thought it was a
hardware issue, and started swapping cables. Then, I realized that I'd
*just* rebooted into a new kernel. So, I booted back to the distro
kernel and these went away.
Even though my mouse is hanging off that hub, I don't seem to notice the
disconnects.
$ dmesg | grep disconnect
[ 3599.496217] usb 3-4.4.4: USB disconnect, address 122
[ 3599.677346] usb 3-4.1: USB disconnect, address 121
[ 3627.804621] usb 3-4.1: USB disconnect, address 124
[ 3628.004400] usb 3-4.4.4: USB disconnect, address 123
[ 3659.496421] usb 3-4.4.4: USB disconnect, address 126
[ 3659.676186] usb 3-4.1: USB disconnect, address 125
[ 3689.493763] usb 3-4.1: USB disconnect, address 3
[ 3689.708916] usb 3-4.4.4: USB disconnect, address 127
[ 3719.497221] usb 3-4.4.4: USB disconnect, address 7
[ 3719.684965] usb 3-4.1: USB disconnect, address 6
[ 3749.496323] usb 3-4.1: USB disconnect, address 9
[ 3749.691180] usb 3-4.4.4: USB disconnect, address 8
Full dmesg and .config:
http://sr71.net/~dave/linux/config-10-03-2008.1.txt
http://sr71.net/~dave/linux/dmesg-10-03-2008.1.log
The last one I tried before this was -rc3, and it appears to be OK. The
Ubuntu 2.6.24-19-generic kernel also appears not to have this issue.
A quick scan of LKML and linux-usb didn't turn up anything similar.
The machine is a Lenovo T61 plugged into the Lenovo dock. At this
point, the only thing plugged into the suspect hub is my mouse.
-- Dave
next reply other threads:[~2008-10-03 18:08 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-03 17:45 Dave Hansen [this message]
2008-10-03 18:40 ` USB disconnects every 30 seconds (2.6.27-rc8) Alan Stern
2008-10-03 19:08 ` Dave Hansen
2008-10-03 20:55 ` Alan Stern
2008-10-03 22:24 ` Thomas Gleixner
2008-10-03 22:46 ` Dave Hansen
2008-10-03 23:06 ` Dave Hansen
2008-10-04 8:48 ` Marcel Holtmann
2008-10-04 16:33 ` Alan Stern
2008-10-04 18:12 ` Alan Stern
2008-10-05 17:59 ` Dave Hansen
2008-10-05 19:16 ` Alan Stern
2008-10-05 20:31 ` Dave Hansen
2008-10-03 19:23 ` Alan Stern
2008-10-03 19:56 ` Dave Hansen
2008-10-03 20:55 ` Alan Stern
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