Return-Path: MIME-Version: 1.0 In-Reply-To: References: Date: Wed, 19 Aug 2015 14:09:01 -0700 Message-ID: Subject: Re: Bluetooth related possible system hard lockups From: Jamin Collins To: linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-bluetooth-owner@vger.kernel.org List-ID: Issue Update I have not been successful in reproducing the issue *without* connecting a bluetooth device at least once. I have however actually witnessed the lockup now: - the screen does *not* turn off as part of the lockup - initially the keyboard was non-responsive - after a few seconds of use the jmouse stopped responding - was able to momentarily reconnect the bluetooth mouse and then it too stopped responding On Wed, Aug 19, 2015 at 1:04 PM, Jamin Collins wrote: > I've recently started experiencing what appear to be hard lockups on > what has otherwise been a very solid system (Lenovo W530 Thinkpad). > I'm running a fully updated Arch Linux install on it, and have been > for a few months (since roughly April of this year). Just before > experiencing these lockups I started using a bluetooth mouse. > > When the apparent lockup occurs: > - the laptop screen seems to be off (no display) > - the CPU fan is running at a moderate speed (not the slowest, and not > the fastest) > - no apparent disk activity > - nothing in journalctl (when I hard reset I find only a gap, last > entry hours before) > - unresponsive to network requests (ping, etc) > > The only way I've found to recover the system thus far is a hard reset > (hold power for 4+ seconds). > > I know it involves bluetooth being on, possibly requires having > connected a device, and then some indeterminate amount of time away > from the system (lack of user interaction). I'm currently testing > with bluetooth on, but no device connected to see if the issue occurs. > > The kernel in question: > Linux version 4.1.5-1-ARCH (builduser@tobias) (gcc version 5.2.0 (GCC) > ) #1 SMP PREEMPT Tue Aug 11 15:41:14 CEST 2015 > > Bluetooth: > Bluetooth daemon 5.33 > > The bluetooth device I've been using is a Thinkpad Bluetooth Laser Mouse: > ThinkPad Bluetooth Laser Mouse as > /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/bluetooth/hci0/hci0:11/0005:17EF:6002.0001/input/input19 > > I'm not subscribed to this list, so please CC me on replies.