linux-kernel - Re: linux-next: Tree for Feb 6 [WARNING: at kernel/sched/clock.c:219 sched_clock

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Message-ID: <CA+icZUUu2-tg+980e0yOMhGq_igkj=FZahy96fh0dcwXdM3+tg@mail.gmail.com>
Date:	Wed, 6 Feb 2013 09:23:46 +0100
From:	Sedat Dilek <sedat.dilek@...il.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	x86@...nel.org, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: linux-next: Tree for Feb 6 [WARNING: at kernel/sched/clock.c:219 sched_clock_cpu+0xf9/0x110()]

On Wed, Feb 6, 2013 at 8:43 AM, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> Hi all,
>
> Changes since 20130204:
>
> The metag tree gained a conflict against the arc tree.
>
> I added a couple of merge fix patches to the mips tree for breakage in
> other architectures.
>
> The powerpc tree still had a build failure.
>
> The crypto tree gained a conflict against the net-next tree.
>
> The sound-asoc tree lost its build failure.
>
> The block tree gained a build failure for which I applied a merge fix
> patch.
>
> The battery tree gained a conflict against the mfd tree.
>
> The spi tree gained a conflict against the sound-asoc tree.
>
> The kvm tree gained a conflict against the arm tree.
>
> The driver-core tree gained conflicts against the spi and iommu trees.
>
> The tty tree gained a build failure on sparc32 for which I applied a
> patch.
>
> The akpm tree gained a conflict against the nfsd tree and a build failure
> for which I reverted a commit.
>
> ----------------------------------------------------------------------------
>

[ CC x86 folks ]

With today's Linux-Next I get this warning:

[    0.000000] Console: colour dummy device 80x25
[    0.000000] ------------[ cut here ]------------
[    0.000000] WARNING: at kernel/sched/clock.c:219 sched_clock_cpu+0xf9/0x110()
[    0.000000] Hardware name: 530U3BI/530U4BI/530U4BH
[    0.000000] Modules linked in:
[    0.000000] Pid: 0, comm: swapper/0 Not tainted
3.8.0-rc6-next20130206-1-iniza-small #1
[    0.000000] Call Trace:
[    0.000000]  [<ffffffff8105a5cf>] warn_slowpath_common+0x7f/0xc0
[    0.000000]  [<ffffffff8105a62a>] warn_slowpath_null+0x1a/0x20
[    0.000000]  [<ffffffff81093319>] sched_clock_cpu+0xf9/0x110
[    0.000000]  [<ffffffff8105c611>] __console_unlock.part.9+0x31/0x440
[    0.000000]  [<ffffffff816b327b>] ? printk+0x61/0x63
[    0.000000]  [<ffffffff8105ca4d>] console_unlock+0x2d/0x40
[    0.000000]  [<ffffffff81d3ecce>] con_init+0x218/0x22b
[    0.000000]  [<ffffffff81d3e259>] console_init+0x16/0x27
[    0.000000]  [<ffffffff81d06d7a>] start_kernel+0x28b/0x3fc
[    0.000000]  [<ffffffff81d068ef>] ? repair_env_string+0x5a/0x5a
[    0.000000]  [<ffffffff81d06120>] ? early_idt_handlers+0x120/0x120
[    0.000000]  [<ffffffff81d065ec>] x86_64_start_reservations+0x2a/0x2c
[    0.000000]  [<ffffffff81d066e1>] x86_64_start_kernel+0xf3/0x102
[    0.000000] ---[ end trace 79eb6cf41ffc867b ]---
[    0.000000] console [tty0] enabled

Not sure, if this related to the known console/fbcon locking issue.
I will try later to merge [1] and check again.

- Sedat -

[1] http://cgit.freedesktop.org/~airlied/linux/log/?h=fbcon-locking-fixes

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