Messages in this thread | | | Date | Fri, 3 Feb 2012 15:59:53 -0500 | From | Konrad Rzeszutek Wilk <> | Subject | kobject (ffff88003ffbb4b8): tried to init an initialized object, something is seriously wrong. |
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Hey Greg,
With or without your previous patch (the one that added an cpu_device_release function) I am getting this in 3.3-rc2. I did not get this in 3.2.
I added some extra printks to make sure that the handle_vcpu_hotplug_event code actually did call 'arch_unregister_cpu' which is certainly looks to be doing.
I hadn't done a bisection yet, but was wondering if this is related to the previous issues with the sysdev. Or kobject getting more observant.
[ 34.984105] Disabling CPU3 present [ 34.984801] arch_unregister_cpu: CPU 3
sh-4.1# sh-4.1# sh-4.1# [ 42.297542] Contemplating CPU 0 which should be online [ 42.298447] Enabling CPU0 present online [ 42.299229] Contemplating CPU 1 which should be online [ 42.300001] Enabling CPU1 present online [ 42.300783] Contemplating CPU 2 which should be online [ 42.301558] Enabling CPU2 present online [ 42.302387] Contemplating CPU 3 which should be online [ 42.303198] Enabling CPU3 [ 42.303895] arch_register_cpu: CPU 3 [ 42.304188] kobject (ffff88003ffbb4b8): tried to init an initialized object, something is seriously wrong. [ 42.304188] Pid: 30, comm: xenwatch Tainted: G O 3.3.0-rc2-00008-g4b64969 #1 [ 42.304188] Call Trace: [ 42.304188] [<ffffffff812ce4d9>] kobject_init+0x89/0xa0 [ 42.304188] [<ffffffff813ca917>] device_initialize+0x27/0x90 [ 42.304188] [<ffffffff813cbbc1>] device_register+0x11/0x20 [ 42.304188] [<ffffffff815f2210>] register_cpu+0x52/0xb6 [ 42.304188] [<ffffffff815d66c0>] arch_register_cpu+0x60/0x70 [ 42.304188] [<ffffffff8136b095>] handle_vcpu_hotplug_event+0x175/0x180 [ 42.304188] [<ffffffff81367140>] xenwatch_thread+0xb0/0x180 [ 42.304188] [<ffffffff810a7ec0>] ? wake_up_bit+0x40/0x40 [ 42.304188] [<ffffffff81367090>] ? split+0xf0/0xf0 [ 42.304188] [<ffffffff810a77e6>] kthread+0x96/0xa0 [ 42.304188] [<ffffffff815fec24>] kernel_thread_helper+0x4/0x10 [ 42.304188] [<ffffffff815f6b40>] ? retint_restore_args+0x5/0x6 [ 42.304188] [<ffffffff815fec20>] ? gs_change+0x13/0x13
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