Messages in this thread | | | Date | Thu, 6 Dec 2012 18:52:43 +0800 | Subject | Re: Race condition between driver_probe_device and device_shutdown | From | Ming Lei <> |
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On Thu, Dec 6, 2012 at 5:11 PM, Wedson Almeida Filho <wedsonaf@gmail.com> wrote: > [Sorry for taking so long to respond, after a week of silence I > assumed I wouldn't get any responses, plus I had moved on to other > things.] > > I happen to still have the logs, the relevant part is pasted at the end. > > Answering some of the questions: the driver is on the platform bus, in > fact, it's drivers/usb/host/ehci-tegra.c; after seeing the oops below, > I added printks when entering and exiting tegra_ehci_probe to try to > understand it better. > > Note that in the log we see some thread entering tegra_ehci_probe, but > nothing indicates that it has exited before we get the oops.
The commit d1c6c030fcec6f860d9bb6c632a3ebe62e28440b(driver core: fix shutdown races with probe/remove(v3)) has been merged to v3.6, so device_shutdown will wait for completing of probe.
Could you test kernel 3.6 or the latest kernel to see if the problem can be reproduced?
Thanks, -- Ming Lei
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