>From Benjamin Tissoires <[email protected]>, Tue, Sep 02, 2014 at >03:58:08PM -0400: > Hi, > > On 09/02/2014 01:46 PM, Dylan Alex Simon wrote: > > Whenever either disconnecting the USB device or simply rmmod'ing the module > > (even when not in use), I get a kernel panic. I haven't managed to capture > > a > > backtrace, but at least the first two lines were saved after an rmmod. > > > > Let me know if you'd like me to try to capture more info, but this problem > > seems very reproducible (at least with a mk2 device; I never had the > > problem on > > older kernels with a mk1). I do direct write()s to the hidraw device, but > > don't otherwise use the driver while it's loaded. > > > > Also at https://bugzilla.kernel.org/show_bug.cgi?id=83751 > > Do you happen to see a "unsupported firmware " error when plugging your > device? > > If so, then the following patch should help with the panic (but you will an > other one to be able to use again your device).
No, no unsupported firmware messages. The device and driver work fine otherwise. It registers (and unregisters) all the devices. Hotplug events: 18:53:17 kernel: thingm 0003:27B8:01ED.0004: hidraw3: USB HID v1.01 Device [ThingM blink(1) mk2] on usb-0000:00:12.2-3.1.4/input0 18:53:17 hotplug: 694 add module path:/module/hid_thingm 18:53:17 hotplug: 695 add hidraw path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/hidraw/hidraw3 18:53:17 hotplug: 696 add leds path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/leds/thingm3:red:led1 18:53:17 hotplug: 698 add leds path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/leds/thingm3:blue:led1 18:53:17 hotplug: 697 add leds path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/leds/thingm3:green:led1 18:53:17 hotplug: 699 add leds path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/leds/thingm3:red:led2 18:53:17 hotplug: 700 add leds path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/leds/thingm3:green:led2 18:53:17 hotplug: 701 add leds path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/leds/thingm3:blue:led2 18:53:17 hotplug: 702 add drivers path:/bus/hid/drivers/thingm <snip, rmmod:> 08:38:42 hotplug: 710 remove leds path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/leds/thingm3:red:led1 08:38:42 hotplug: 712 remove leds path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/leds/thingm3:blue:led1 08:38:42 hotplug: 711 remove leds path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/leds/thingm3:green:led1 08:38:42 hotplug: 714 remove leds path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/leds/thingm3:green:led2 08:38:42 hotplug: 713 remove leds path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/leds/thingm3:red:led2 08:38:42 hotplug: 715 remove leds path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/leds/thingm3:blue:led2 08:38:42 hotplug: 716 remove hidraw path:/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:27B8:01ED.0004/hidraw/hidraw3 08:38:42 kernel: BUG: unable to handle kernel paging request at fffffffb8a80aaf8 08:38:42 kernel: IP: [<ffffffff8106e30c>] osq_lock+0x3c/0x110 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
