search for: lock_suspend_event

...linked in previous operations, then there is an obsolete lock file in place, which causes the current and later migration cannot get lock. That happens seldomly but do happen. After checking the source code, I found there are some places that potentially cause lock file unlinked, including: 1) in lock_suspend_event() function, when write_exact fails, it doesn''t remove the lock file and later there is no chance to remove it. 2) in xc_suspend_evtchn_init() function, in "cleanup" block, I can''t see any reason for checking if(suspend_evtchn != -1), if suspend_evtchn=-1, it doesn'...