From: Greg KH <gregkh@suse.de>
To: "Éric Piel" <E.A.B.Piel@tudelft.nl>
Cc: Alan Stern <stern@rowland.harvard.edu>,
LKML <linux-kernel@vger.kernel.org>,
linux-usb@vger.kernel.org, "Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: Regression 3.0-rc5+ : khubd blocked
Date: Fri, 1 Jul 2011 06:29:19 -0700 [thread overview]
Message-ID: <20110701132919.GB8902@suse.de> (raw)
In-Reply-To: <4E0DC172.9010504@tudelft.nl>
On Fri, Jul 01, 2011 at 02:45:38PM +0200, Éric Piel wrote:
> Hello,
> I've come across to what looks like a regression in the kernel a
> few commits after 3.0-rc5.
>
> When I turn off a usb hub, to which my mouse and keyboard are connected,
> and then turn it on again, they are not detected again. After unplugging
> it and waiting a few minutes I get a "task khubd:621 blocked for more
> than 120 seconds."
>
> I haven't investigated much. It seems reproducible here on my x86_64
> laptop. It doesn't seem to happen on a 3.0-rc4. Maybe important, my
> kernel already has commit 2e34b429a404675dc4fc4ad2ee339eea028da3ca
> "Merge branch 'usb-linus' of
> git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6"
>
> Let me know if you need me to investigate more, or maybe there is
> already a fix for that bug?
Can you run 'git bisect' to track it down to the exact patch that causes
the problem?
thanks,
greg k-h
next prev parent reply other threads:[~2011-07-01 13:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-01 12:45 Éric Piel
2011-07-01 13:29 ` Greg KH [this message]
2011-07-01 15:21 ` Alan Stern
2011-07-01 15:41 ` Éric Piel
2011-07-01 16:12 ` Sarah Sharp
2011-07-01 16:20 Éric Piel
2011-07-01 17:19 ` Alan Stern
2011-07-01 20:08 ` Sarah Sharp
2011-07-01 20:40 ` Alan Stern
2011-07-01 20:53 ` Sarah Sharp
2011-07-01 22:05 ` Éric Piel
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