From: Stephen Warren <swarren@wwwdotorg.org>
To: Andreas Bombe <aeb@debian.org>
Cc: Alan Stern <stern@rowland.harvard.edu>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [Regression] process hangs due to "USB: EHCI: work around silicon bug in Intels EHCI controllers"
Date: Tue, 19 Mar 2013 19:29:43 -0600 [thread overview]
Message-ID: <51491107.5060001@wwwdotorg.org> (raw)
In-Reply-To: <20130320000336.GA8912@amos.fritz.box>
On 03/19/2013 06:03 PM, Andreas Bombe wrote:
> The named commit (6402c796d3) causes a process to hang indefinitely in
> usb_kill_urb(). Reverting it fixes the problem. The bug also prevents
> suspend/shutdown/reboot from completing, presumably due to the hanging
> process.
>
> (Cc'ing Stephen Warren because I only found his report after I bisected
> it myself. Do you also see a blocked process?)
Yes, I believe the symptoms we're both seeing are identical.
> This is the hanging process on my system:
> [ 240.364085] INFO: task colord-sane:3619 blocked for more than 120 seconds.
...
> [ 240.364118] Call Trace:
> [ 240.364127] [<ffffffff81685af0>] schedule+0x65/0x67
> [ 240.364132] [<ffffffff8141a235>] usb_kill_urb+0xb5/0xd3
prev parent reply other threads:[~2013-03-20 1:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-20 0:03 [Regression] process hangs due to "USB: EHCI: work around silicon bug in Intels EHCI controllers" Andreas Bombe
2013-03-20 1:29 ` Stephen Warren [this message]
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