CVSROOT:        /cvs
Module name:    src
Changes by:     p...@cvs.openbsd.org    2020/04/20 21:36:57

Modified files:
        usr.sbin/vmd   : vm.c 

Log message:
vmd: improve concurrency control in pause

Previous implementation hit a deadlock sometimes as the pthread_cond_broadcast
for the pause mutex could happen before pthread_cond_wait.  This implementation
uses a barrier which is hit when all vpcus are paused.

ok mpi@

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