Re: [xfs-masters] 2.6.29-rc: kernel BUG at fs/xfs/support/debug.c:108

Alexander Beregalov
2009-01-10T12:19:01Z

2009/1/10 Alexander Beregalov <a.beregalov@gmail.com>:
> 2009/1/10 Alexander Beregalov <a.beregalov@gmail.com>:
>> 2009/1/10 Alexander Beregalov <a.beregalov@gmail.com>:
>>> 2009/1/9 Dave Chinner <david@fromorbit.com>:
>>>> On Fri, Jan 09, 2009 at 07:41:21AM +0300, Alexander Beregalov wrote:
>>>> Looks like the same btree corruption problem as this:
>>>>
>>>> http://oss.sgi.com/archives/xfs/2009-01/msg00118.html
>>>>
>>>> We're working to find the cause right now, but I find it interesting
>>>> that you are running a CONFIG_XFS_DEBUG=y kernel and the first
>>>> point that something is found wrong is the same place that the
>>>> above non-debug case is detecting corruption.
>>>>
>>>> Can you reproduce it/have a reproducable test case?
>>> Yes, it is easy reproducible for me, it happens every time I run
>>> `rtorrent` during few minutes after boot.
>>> I will try to provide simpler testcase.

It is hard to bisect it,
These are last good and bad commits:
good: [854929f05831d3a290a802815ee955b96c740c61] [XFS] add new btree statistics
bad: [7f7c39ccb6045cf1fd5e7684a484c445291b44d4] [XFS] make btree tracing generic