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    DateWed, 02 Jul 2008 15:13:52 +0800
    FromLai Jiangshan <>
    SubjectRe: [BUG] CFS vs cpu hotplug
    Ingo Molnar wrote:
    > * Lai Jiangshan <laijs@cn.fujitsu.com> wrote:
    > 
    >> The following oops still occurred whether this patch is applied or not.
    > 
    >>  [<ffffffff8059372c>] notifier_call_chain+0x33/0x5b
    >>  [<ffffffff802476a9>] __raw_notifier_call_chain+0x9/0xb
    >>  [<ffffffff802476ba>] raw_notifier_call_chain+0xf/0x11
    >>  [<ffffffff805736d6>] _cpu_down+0x191/0x256
    >>  [<ffffffff805737c1>] cpu_down+0x26/0x36
    >>  [<ffffffff805749c1>] store_online+0x32/0x75
    >>  [<ffffffff803d1982>] sysdev_store+0x24/0x26
    >>  [<ffffffff802d2551>] sysfs_write_file+0xe0/0x11c
    >>  [<ffffffff80290e6b>] vfs_write+0xae/0x137
    >>  [<ffffffff802913d3>] sys_write+0x47/0x70
    >>  [<ffffffff8020b1eb>] system_call_after_swapgs+0x7b/0x80
    > 
    > hm, there were multiple problems in this area and a lot of dormant bugs. 
    > Do you have this recent upstream commit in your tree:
    Hi, Ingo
    	I tested it again with the most recent upstreams(including the
    following patch) committed, the oops still occurred.
    
    Thanks, Lai Jiangshan
    
    > 
    > | commit fcb43042ef55d2f46b0efa5d7746967cef38f056
    > | Author: Zhang, Yanmin <yanmin_zhang@linux.intel.com>
    > | Date:   Tue Jun 24 16:06:23 2008 +0800
    > |
    > |    x86: fix cpu hotplug crash
    > |
    > |    Vegard Nossum reported crashes during cpu hotplug tests:
    > |
    > |      http://marc.info/?l=linux-kernel&m=121413950227884&w=4
    > 
    > ?
    > 
    > 	Ingo
    > 
    > 
    > 
    
    
    
    
    
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