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Re: [Xen-devel] [xen] double fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC

On Sun, Oct 6, 2013 at 10:10 PM, Fengguang Wu <fengguang.wu@xxxxxxxxx> wrote:
> I retried bisect with "Oops:" and the first bad commit is
> commit c817a67ecba7c3 ("kobject: delayed kobject release: help find buggy 
> drivers")

Ok, that makes way more sense.

> That commit has already helped expose some bugs, however I suspect there are
> still many hidden ones. In this particular bisect, the commit produces 85 good
> dmesgs and 2055 bad dmesgs, exposing all sorts of error messages
>    1929 Oops: 0002 [#1] PREEMPT SMP DEBUG_PAGEALLOC
>    1921 BUG: unable to handle kernel NULL pointer dereference at 
> 0000000000000008
>    1897 Kernel panic - not syncing: Fatal exception in interrupt

Ok, can you post some of the more promising oopses so that we can try
to figure out what kobject it is that causes problems?


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