On 03/23/20 16:36, Oliver Neukum wrote: > Am Montag, den 23.03.2020, 14:38 +0000 schrieb Qais Yousef: > > Hi > > > > I've hit the following lockdep warning when I trigger hibernate on arm64 > > platform (Juno-r2) > > > > > > echo suspend > /sys/power/disk > > echo disk > /sys/power/state > > > > I only had a usb flash drive attached to it. Let me know if you need more info. > > Hi, > > that is not a lockdep issue, but the hub driver is not properly killing > its URB presumably. Yet, the driver looks correct to me. Please use > the additional patch and activate dynamic debugging for usbcore. Yes sorry my bad, it's a WARN_ONCE(). I applied your patch and will reproduce, but meanwhile not sure if you noticed this line in my previous email [ 327.154849] usb usb2: runtime PM trying to activate child device usb2 but parent (7ffb0000.ohci) is not active Thanks -- Qais Yousef
