Messages in this thread | | | Date | Thu, 25 Sep 2014 13:02:28 +0200 | From | Schrey <> | Subject | Re: linux-stable: backport usb related commit to 3.10 and 3.12? |
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Hi,
resending; multiple systems are and have been working fine for me, with that commit backported to kernel 3.10 and 3.12.
2014-08-23: > Greetings. > > On an administered server, I noticed that there's a constant load > around 0.70 when running kernels 3.10 and 3.12, even if > the system is doing nothing, and in single user mode. > Culprit seems to be the process 'khubd'. > No such effect when running kernels 3.4 or 3.14. > > I reverse bisected linux-stable and found that the following commit > fixes it for me, for both kernel 3.10 and 3.12: > > [08d1dec6f4054e3613f32051d9b149d4203ce0d2] usb:hub set > hub->change_bits when over-current happens > > > Could that commit be backported to the stable 3.10 and 3.12 series? > > (Disclaimer: I'm not a programmer, but I'd be happy to help with any > testing involved) > > Regards > Ingmar > > -------------------------------------------------------------------------- > > > $ git diff ac5166bcdb43889a5bd837f5076b78049e1f8bca > 08d1dec6f4054e3613f32051d9b149d4203ce0d2 > diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c > index c1422a0..babba88 100644 > --- a/drivers/usb/core/hub.c > +++ b/drivers/usb/core/hub.c > @@ -1147,7 +1147,8 @@ static void hub_activate(struct usb_hub *hub, > enum hub_activation_type type) > /* Tell khubd to disconnect the device or > * check for a new connection > */ > - if (udev || (portstatus & > USB_PORT_STAT_CONNECTION)) > + if (udev || (portstatus & > USB_PORT_STAT_CONNECTION) || > + (portstatus & USB_PORT_STAT_OVERCURRENT)) > set_bit(port1, hub->change_bits); > > } else if (portstatus & USB_PORT_STAT_ENABLE) { > >
-- this space for rent
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