linux-kernel - Re: Kernel causes excessive delay mounting USB device

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Date:	Sun, 4 Aug 2013 00:42:13 +0100
From:	"Dr. David Alan Gilbert" <dave@...blig.org>
To:	Vern Clark <vmclark@...izon.net>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Kernel causes excessive delay mounting USB device

* Vern Clark (vmclark@...izon.net) wrote:
> 
> Plugging in any USB flash stick takes 5-6 minutes before its mounted.
> 
> ===
> Using the current kernel-3.8.0-28-generic, the USB fails to load in proper time.
> I found this message in syslog: timeout: killing '/sbin/blkid -o udev -p /dev/sdb'. Right after which, the USB device was mounted.
> 
> Using an earlier kernel-3.2.37-030237-generic, fixed the problem.

Did you try going back to one of their previous 3.8.0 versions rather than a big jump like that?

> Aug  2 09:39:16 u kernel: [ 2269.914570] sd 11:0:0:0: [sdb] Assuming drive cache: write through
> Aug  2 09:39:47 u kernel: [ 2300.739825] usb 1-8: reset high-speed USB device number 11 using ehci-pci

Curious; I've just started getting something similar on the Ubuntu 3.10.0-6 kernels, and 
last nights v3.11-rc3 build.

It's been suggested perhaps:
http://www.spinics.net/lists/stable/msg16022.html

is the culprit, but I haven't tried it yet.

Dave
-- 
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