Re: [Bug #15202] lockdep warning during elevator_switch

From: Eric W. Biederman
Date: Wed Feb 24 2010 - 20:35:42 EST


Hugh Dickins <hugh.dickins@xxxxxxxxxxxxx> writes:

> On Mon, 22 Feb 2010, AmÃrico Wang wrote:
>> On Mon, Feb 22, 2010 at 5:30 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
>> > This message has been generated automatically as a part of a summary report
>> > of recent regressions.
>> >
>> > The following bug entry is on the current list of known regressions
>> > from 2.6.32. ÂPlease verify if it still should be listed and let the tracking team
>> > know (either way).
>> >
>> >
>> > Bug-Entry    : http://bugzilla.kernel.org/show_bug.cgi?id=15202
>> > Subject     : lockdep warning during elevator_switch
>> > Submitter    : Hugh Dickins <hugh.dickins@xxxxxxxxxxxxx>
>> > Date      Â: 2010-01-31 23:55 (22 days old)
>> > References   Â: http://marc.info/?l=linux-kernel&m=126498212613051&w=4
>> >
>>
>> This should be fixed by:
>> http://lkml.org/lkml/2010/2/11/329
>
> This regression does still need to be listed for 2.6.33-rc8-git.
>
> Americo is right that the warning goes away if I apply those patches from Eric,
> but they look like more than we'd be adding into 2.6.33 at this stage ...
> and bootup of latest git plus those patches gave me 71 messages of the form
> BUG: key fxxxxxxx not in .data!

Which probably means one or two more spots that need annotation.

2.6.33 is out so these are targeted for 2.6.34...

Eric
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