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SubjectRe: [Xen-devel] [GIT PULL] (xen) stable/for-jens-3.14 : NFO: trying to register non-static key. the code is fine but needs lockdep annotation.
On Tue, Feb 11, 2014 at 04:52:15PM +0100, Sander Eikelenboom wrote:
> Hi Konrad,
>
> Today decided to tryout another kernel RC and your pull request to Jens on top of it .. and I encoutered this one:

Thank you for testing!

Could you provide the .config file please?

Did you see this _before_ the pull request with Jens? I presume
not, but just double checking?

And lastly - what were you doing when you triggered this? Just launching
a guest?

CC-ing Roger and other folks who were on the patches.

>
>
> [ 438.029756] INFO: trying to register non-static key.
> [ 438.029759] the code is fine but needs lockdep annotation.
> [ 438.029760] turning off the locking correctness validator.
> [ 438.029770] CPU: 3 PID: 9593 Comm: blkback.2.xvda Tainted: G W 3.14.0-rc2-20140211-pcireset-net-btrevert-xenblock+ #1
> [ 438.029773] Hardware name: MSI MS-7640/890FXA-GD70 (MS-7640) , BIOS V1.8B1 09/13/2010
> [ 438.029784] ffff88005224c4f0 ffff88004e5d9b68 ffffffff81b808c4 ffff88004ba2b510
> [ 438.029791] 0000000000000002 ffff88004e5d9c38 ffffffff81116eab ffff88004e5d9bf8
> [ 438.029798] ffffffff81117b35 0000000000000000 0000000000000000 ffffffff82cee570
> [ 438.029799] Call Trace:
> [ 438.029815] [<ffffffff81b808c4>] dump_stack+0x46/0x58
> [ 438.029826] [<ffffffff81116eab>] __lock_acquire+0x1c2b/0x2220
> [ 438.029833] [<ffffffff81117b35>] ? lock_acquire+0xe5/0x150
> [ 438.029841] [<ffffffff81117b0d>] lock_acquire+0xbd/0x150
> [ 438.029847] [<ffffffff810e5965>] ? flush_work+0x5/0x290
> [ 438.029852] [<ffffffff810e599d>] flush_work+0x3d/0x290
> [ 438.029856] [<ffffffff810e5965>] ? flush_work+0x5/0x290
> [ 438.029863] [<ffffffff81117b35>] ? lock_acquire+0xe5/0x150
> [ 438.029872] [<ffffffff816fef01>] ? xen_blkif_schedule+0x1a1/0x8d0
> [ 438.029881] [<ffffffff81b8ae0d>] ? _raw_spin_unlock_irqrestore+0x6d/0x90
> [ 438.029888] [<ffffffff8111392b>] ? trace_hardirqs_on_caller+0xfb/0x240
> [ 438.029894] [<ffffffff81113a7d>] ? trace_hardirqs_on+0xd/0x10
> [ 438.029901] [<ffffffff816fefe9>] xen_blkif_schedule+0x289/0x8d0
> [ 438.029907] [<ffffffff8110d510>] ? __init_waitqueue_head+0x60/0x60
> [ 438.029913] [<ffffffff81113a7d>] ? trace_hardirqs_on+0xd/0x10
> [ 438.029919] [<ffffffff81b8ae21>] ? _raw_spin_unlock_irqrestore+0x81/0x90
> [ 438.029925] [<ffffffff816fed60>] ? xen_blkif_be_int+0x40/0x40
> [ 438.029932] [<ffffffff810ee374>] kthread+0xe4/0x100
> [ 438.029938] [<ffffffff81b8afe0>] ? _raw_spin_unlock_irq+0x30/0x50
> [ 438.029946] [<ffffffff810ee290>] ? __init_kthread_worker+0x70/0x70
> [ 438.029951] [<ffffffff81b8c1fc>] ret_from_fork+0x7c/0xb0
> [ 438.029958] [<ffffffff810ee290>] ? __init_kthread_worker+0x70/0x70
>
> Doesn't seem to serious .. but never the less :-)
>
> --
>
> Sander
>
>
> Monday, February 10, 2014, 8:54:02 PM, you wrote:
>
> > On Mon, Feb 10 2014, Konrad Rzeszutek Wilk wrote:
> >> Hey Jens,
> >>
> >> Please git pull the following branch:
> >>
> >> git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git stable/for-jens-3.14
> >>
> >> which is based off v3.13-rc6. If you would like me to rebase it on
> >> a different branch/tag I would be more than happy to do so.
>
> > Older is fine, it's only an issue if you are ahead of the branch you
> > want to go into.
>
> dd>>
> >> The patches are all bug-fixes and hopefully can go in 3.14.
> >>
> >> They deal with xen-blkback shutdown and cause memory leaks
> >> as well as shutdown races. They should go to stable tree and if you
> >> are OK with I will ask them to backport those fixes.
> >>
> >> There is also a fix to xen-blkfront to deal with unexpected state
> >> transition. And lastly a fix to the header where it was using the
> >> __aligned__ unnecessarily.
>
> > Pulled!
>
>
> --
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