On Fri, Sep 05, 2014 at 03:33:04PM -0700, Sarah Sharp wrote: > Andrea, Dan Williams has a set of patches that should resolve this > issue, please test these: Ok great. > > http://marc.info/?l=linux-usb&m=140872773111261&w=2 Could you rebase on current upstream, this is against 16-rc5. For now I'll test commit e65e21a542cab81d794db4e5fe919c4e1d624ea7 on 16-rc5 without weaking any /sysfs pm runtime related file, and I'll let you know if it hangs again. > > I'm running > > ax88179_178a in two places without apparent problems, interestingly I > > didn't reproduce more lockups after turning off the powersave > > feature. The only catch is that the xhci hang is not easily > > reproducible... > > Which powersave feature? Never mind I let the stress test run overnight again and it hung even with autosuspend/control set to the default value. In short it still hangs... but it's not easy to reproduce, in some case it takes several hours, sometime it hangs in a few minutes. > What do you mean by hang? Do other USB devices work under xhci (e.g. > mouse and keyboard) but the ethernet stops working? Or all USB devices > under xHCI stop working? Or the xHCI driver causes a kernel oops? > What's the failure mode? I posted all the kernel logs in the previous email with dynamic debug enabled too. No oops. rmmod xhci_hcd; modprobe xhci_hcd recovers fine from it. There are no other xhci devices in use, I didn't test what would happen to them after the hang if they were connected. Thanks, Andrea -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
