Messages in this thread | | | Date | Mon, 28 Jan 2013 12:46:39 -0800 | From | Jonathan Nieder <> | Subject | [regression] external HDD in USB3 enclosure cannot be dynamically removed (Re: Linux 3.7.5) |
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Hi Holger,
Holger Hoffstaette wrote: >> On Mon, Jan 28, 2013 at 12:42:16PM +0100, Holger Hoffstaette wrote:
>>> Apologies for being late but I'm afraid I just found at least one >>> regression in this release. >>> >>> I have an external HDD in an USB3 enclosure for the occasional backup. I >>> turn it on, it gets registered as sdX, I mount it/use it/unmount it and >>> turn it off, which worked fine with kernels including 3.7.4. With 3.7.5 > > FWIW it didn't really work with 3.7.4 either - just didn't notice before. > >>> the kernel seems no longer notified of the changed device power status; >>> nothing in dmesg and the device stays in the list of SCSI devices as >>> e.g. shown by lsscsi. This is repeatable. Turning the device back >>> on/using it works fine, it's just that I cannot dynamically remove it >>> any longer. [...] > No, current 3.8-rc5 did not work either. I first found 3.7.2 OK and 3.7.3 > bad. Bisecting found: > > --snip-- > f7965c0846d74b270e246c1470ca955d5078eb07 is the first bad commit > commit f7965c0846d74b270e246c1470ca955d5078eb07 > Author: Sarah Sharp <sarah.a.sharp@linux.intel.com> > Date: Wed Nov 14 17:58:04 2012 -0800 > > USB: Handle warm reset failure on empty port. > > commit 65bdac5effd15d6af619b3b7218627ef4d84ed6a upstream. [...] > Reverting this from 3.7.3 all the way to 3.8-rc5 makes USB 3.0 > disconnection/power-off device removal work again. Verified both on the > bisection box and by now also the original machine.
Thanks for tracking this down. Forwarding to relevant people.
Hope that helps, Jonathan
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