On Thu, Mar 3, 2016 at 2:58 PM, Rasmus Villemoes <li...@rasmusvillemoes.dk> wrote: > Looking up the vvar mapping and dumping its contents sometimes results > in a soft lockup. On 4.5-rc6+ (master from earlier today) it seems to be > a little harder to trigger than on the 4.2something Ubuntu kernel I > first saw it on, but in both cases it's easy to reproduce (10s of > iterations at most) by running the below program in a loop. >
I can't reproduce this. Do you have a .config or some other hint? Can you also give me the contents of /sys/devices/system/clocksource/clocksource0/current_clocksource and the output from 'dmesg |grep -i hpet'? And is this in a VM or on a native boot? My best guess is that you have a particularly buggy hpet. --Andy
