when we suspend/resume Blackfin SMP systems, we notice that the freezer code runs on multiple cores. this is of course what you want -- freeze processes in parallel. however, the code only uses non-smp based barriers which causes us problems ... our cores need software support to keep caches in sync, so our smp barriers do just that. but the non-smp barriers do not, and so the frozen/thawed processes randomly get stuck in the wrong task state. thinking about it, shouldnt the freezer code be using smp barriers ? the point is to make sure that the updates are seen across all cores are not just the current one ? -mike _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
