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From: Matthew D Fleming <mdf@FreeBSD.org>
Date: Wed, 15 Sep 2010 15:53:05 +0000 (UTC)
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X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/sys/kern sched_ule.c
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mdf         2010-09-15 15:53:05 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    sys/kern             sched_ule.c 
  Log:
  SVN rev 212666 on 2010-09-15 15:53:05Z by mdf
  
  MFC r212115:
  
  Fix a bug with sched_affinity() where it checks td_pinned of another
  thread in a racy manner, which can lead to attempting to migrate a
  thread that is pinned to a CPU.  Instead, have sched_switch() determine
  which CPU a thread should run on if the current one is not allowed.
  
  KASSERT in sched_bind() that the thread is not yet pinned to a CPU.
  
  KASSERT in sched_switch() that only migratable threads or those moving
  due to a sched_bind() are changing CPUs.
  
  Note that this is direct commit as ipi_cpu() only exists in CURRENT.
  
  Revision    Changes    Path
  1.257.2.10  +13 -11    src/sys/kern/sched_ule.c