search for: time_calibration_std_rendezvous

...update_wall_time() after dom0 switches to xen as clocksource. The source of hang seems to be in xen stime_local_stamp in cpu_time that suddenly jumps to a large 64bit value. I''ve been chasing to figure where that happens, and why for the hybrid and not PV. It appears the source of jump is time_calibration_std_rendezvous() in c->stime_master_stamp. Chasing that, seems to come from read_platform_stime(). The jump happens after switch to xen clocksource in dom0. I''ll continue to debug, but let me know if you have any thoughts or idea what might be going on. thanks, Mukesh