8007221: G1: concurrent phase durations do not state the time units ("secs") Summary: Add timer units to concurrent marking phases where the units were missing. Reviewed-by: jmasa, ysr

8008314: Unimplemented() Atomic::load breaks the applications Summary: jlong atomics isn't fully implemented om all 32-bit platforms so we try to avoid it. In this case the atomic add wasn't needed. Reviewed-by: dholmes, dlong

Merge

8008340: [sampling] assert(upper->pc_offset() >= pc_offset) failed: sanity Reviewed-by: kvn, sla