It's on Fedora 21 (though it was present in Fedora 20 as well) there's a bug report with Redhat's bugzilla in the description. I don't think those commands will work on my system, but I'll get it straightened out and get back to you on the usbcore and xhci logs. On Mon, May 4, 2015 at 8:14 AM, Brian Monroe <briancmonroe@xxxxxxxxx> wrote: > It's on Fedora 21 (though it was present in Fedora 20 as well) there's a bug > report with Redhat's bugzilla in the description. I don't think those > commands will work on my system, but I'll get it straightened out and get > back to you on the usbcore and xhci logs. > > On Sun, May 3, 2015 at 6:40 PM Lu, Baolu <baolu.lu@xxxxxxxxxxxxxxx> wrote: >> >> Hi Brian Monroe, >> >> On which platform did you see this problem? >> >> Do you have any kernel messages when this problem happens? >> >> It should be more helpful if we have kernel messages with usbcore and >> xhci dynamic debug enabled. >> >> "usbcore" and "xhci" dynamic debug could be enabled with below commands. >> >> # echo -n 'module xhci_hcd =p' > /sys/kernel/debug/dynamic_debug/control >> # echo -n 'module usbcore =p' > /sys/kernel/debug/dynamic_debug/control >> >> Thanks, >> Baolu >> >> On 04/29/2015 02:23 AM, Brian Monroe wrote: >> > I filed a bug with kernel.org: >> > https://bugzilla.kernel.org/show_bug.cgi?id=97391 and Greg >> > Kroah-Hartman requested that I email this list to advise you of the >> > issue as well. >> > >> > There's also a bug that's been filed with Fedora >> > https://bugzilla.redhat.com/show_bug.cgi?id=1168557 for this issue, >> > and there's the lspci info from different machines listed there. >> > >> > The computer will reboot instead of shutting down. We found a work >> > around when you disable xHCI (and consequently USB3) support in the >> > BIOS and the bug goes away. This has been present in Version 3.17 and >> > later in the kernel changes for Fedora 21. >> > -- >> > 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 >> > >> > >> > -- 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
