From: Sarah Sharp <sarah.a.sharp@linux.intel.com>
To: Robert Hancock <hancockrwd@gmail.com>
Cc: Greg KH <gregkh@suse.de>, Linux-usb <linux-usb@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Sleeping function called from invalid context in 2.6.37 xhci_hcd
Date: Thu, 6 Jan 2011 00:00:25 -0800 [thread overview]
Message-ID: <20110106080025.GA27255@xanatos> (raw)
In-Reply-To: <AANLkTi=a=ARbmr6e9KvuNdtLWkQyfecrQOPeTHze5=Xf@mail.gmail.com>
On Wed, Jan 05, 2011 at 06:59:59PM -0600, Robert Hancock wrote:
> On Wed, Jan 5, 2011 at 6:30 PM, Greg KH <gregkh@suse.de> wrote:
> > On Wed, Jan 05, 2011 at 06:22:03PM -0600, Robert Hancock wrote:
> >> Just saw this on booting up on the latest Fedora Rawhide kernel
> >> based on 2.6.37. Looks like we were trying to do a runtime suspend
> >> on the xHCI USB controller and it disabled MSI-X while interrupts
> >> were disabled?
> >
> > Known issue, patches came in too late to make it for .37, hopefully will
> > show up in .38-rc and then get backported to .37. They are on the
> > linux-usb mailing list if you need them now.
>
> Not sure if it's related to this issue or not, but I also noticed the
> USB 3.0 card wasn't detecting any connected devices until I disabled
> USB autosuspend on the controller through sysfs (which is enabled by
> default in that Fedora Rawhide kernel)..
There's a couple more patches to deal with some issues with
disconnecting a USB device (or safely removing a USB mass storage
device) when the bus is suspended. See the patches starting in this
thread:
http://marc.info/?l=linux-usb&m=129421308020494&w=2
Try applying the first five patches and let me know if you still see any
issues. The fourth patch has a known compile warning (it will get fixed
shortly) but you shouldn't run into that particular error path.
Sarah Sharp
prev parent reply other threads:[~2011-01-06 8:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-06 0:22 Sleeping function called from invalid context in 2.6.37 xhci_hcd Robert Hancock
2011-01-06 0:30 ` Greg KH
2011-01-06 0:59 ` Robert Hancock
2011-01-06 8:00 ` Sarah Sharp [this message]
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