Source: linux Version: 4.5.5-1 Severity: normal Hi,
My Lenovo Thinkpad X250 freezes a couple of seconds after resuming from suspend. This happened with 4.5, but not with v4.6. I bisected the problem using mainline kernel with Debian config to the following commit: sre@earth ~/src/linux (git)-[fdd9b86...|bisect] % git bisect bad fdd9b8655933c3eb3154fe1ed351c17b654258bd is the first bad commit commit fdd9b8655933c3eb3154fe1ed351c17b654258bd Author: Alexander Usyskin <alexander.usys...@intel.com> Date: Fri Jan 8 00:49:21 2016 +0200 mei: wd: drop the watchdog code from the core mei driver Instead of integrating the iAMT watchdog in the mei core driver we will create a watchdog device on the mei client bus and create a driver for it. This patch removes the watchdog code from the mei core driver. Signed-off-by: Alexander Usyskin <alexander.usys...@intel.com> Signed-off-by: Tomas Winkler <tomas.wink...@intel.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> My system was configured to use the watchdog via "RuntimeWatchdogSec=30" in "/etc/systemd/system.conf". After disabling the feature no system freeze happens after suspend/resume cycle. -- Sebastian -- System Information: Debian Release: stretch/sid APT prefers testing APT policy: (1000, 'testing'), (500, 'unstable'), (200, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386, armhf Kernel: Linux 4.6.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system)