On Tue, Apr 2, 2013 at 1:28 PM, huang ying <huang.ying.caritas@xxxxxxxxx> wrote: > On Tue, Apr 2, 2013 at 4:51 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: >> >> On Monday, April 01, 2013 11:34:46 AM Bjorn Helgaas wrote: >> > [+cc Zheng, who added this with 71a83bd727] >> > >> > On Sat, Mar 30, 2013 at 4:38 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: >> > > From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> >> > > >> > > The runtime PM of PCIe ports turns out to be quite fragile, as in >> > > some cases things work while in some other cases they don't and we >> > > don't seem to have a good way to determine whether or not they are >> > > going to work in advance. >> > >> > Do you have any references to problems encountered when enabling >> > runtime PM for PCIe ports? That information will be useful to anybody >> > who wants to take another crack at getting this working. >> >> Well, bug 53811 is one example and problems recently reported by >> Martin are another. Do you want me to dig deeper? > > For bug 53811, I have a debug patch posted in bugzilla to disable > runtime PM for PCIe port with hotplug capability. It appears that > patch resolved the issue for the reporter. Do think that patch can > solve the hotplug issue. For Martin's hotplug issue, it appears that a similar patch I sent to him resolve his hotplug issue too. For Martin's "XHCI dead port" issue, that is, PME issue. I just sent him another debug patch to try. Sorry for late! Best Regards, Huang Ying -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
