Re: [regression] external HDD in USB3 enclosure cannot be dynamicallyremoved (Re: Linux 3.7.5)
From: Holger Hoffstätte
Date: Wed Feb 13 2013 - 03:28:44 EST
On 12.02.2013 21:42, Sarah Sharp wrote:
> I think I see the issue. Your host controller reports the Inactive
> state after a USB disconnect. My host controllers go to the RxDetect
> state on a disconnect.
> The patches that went into 3.8 and the stable kernels to better handle
> the Inactive state were not designed to handle a connected device going
> to the Inactive state. I thought that would be a rare case, but
> apparently it's not.
> There was a further set of patches queued for 3.9 to deal with connected
> devices going to the Inactive state, but they looked like they were too
> big for stable:
> d3b9d7a USB: Fix connected device switch to Inactive state.
> a24a607 USB: Rip out recursive call on warm port reset.
> 2d4fa94 USB: Prepare for refactoring by adding extra udev checks.
> 0fe51aa USB: Don't use EHCI port sempahore for USB 3.0 hubs.
> Can you retry with Greg's usb-next branch?
> git clone git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git -b usb-next
> If that fixes your problem, we should either get those additional
> patches into 3.8 and the stable trees, or do a revert of the whole
> series and just let 3.9 carry the full patchset.
Good news! This one does indeed work as expected - the device can be
removed and is gone for good. Upstream & Stable plz :)
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