From: Gustavo Luiz Duarte <gustavold@linux.vnet.ibm.com>
To: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
Michael Ellerman <mpe@ellerman.id.au>
Subject: Re: [PATCH] powerpc/perf/24x7: Fix lockdep warning
Date: Tue, 07 Jul 2015 17:54:31 -0300 [thread overview]
Message-ID: <559C3C87.9010601@linux.vnet.ibm.com> (raw)
In-Reply-To: <20150707193725.GA12395@us.ibm.com>
On 07/07/2015 04:37 PM, Sukadev Bhattiprolu wrote:
> From 370152d9427e57cd9632b00189f71099f8e85544 Mon Sep 17 00:00:00 2001
> From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
> Date: Tue, 7 Jul 2015 12:21:10 -0400
> Subject: [PATCH 1/1] powerpc/perf/24x7: Fix lockdep warning
>
> The sysfs attributes for the 24x7 counters are dynamically allocated.
> Initialize the attributes using sysfs_attr_init() to fix following
> warning which occurs when CONFIG_DEBUG_LOCK_VMALLOC=y.
>
> [ 0.346249] audit: initializing netlink subsys (disabled)
> [ 0.346284] audit: type=2000 audit(1436295254.340:1): initialized
> [ 0.346489] BUG: key c0000000efe90198 not in .data!
> [ 0.346491] DEBUG_LOCKS_WARN_ON(1)
> [ 0.346502] ------------[ cut here ]------------
> [ 0.346504] WARNING: at ../kernel/locking/lockdep.c:3002
> [ 0.346506] Modules linked in:
>
> Reported-by: Gustavo Luiz Duarte <gustavold@linux.vnet.ibm.com>
> Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Tested-by: Gustavo Luiz Duarte <gustavold@linux.vnet.ibm.com>
I verified that it fixes a BUG splat on PowerVM (tested on little endian).
[]'s
Gustavo
next prev parent reply other threads:[~2015-07-07 20:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-07 19:37 [PATCH] powerpc/perf/24x7: Fix lockdep warning Sukadev Bhattiprolu
2015-07-07 20:54 ` Gustavo Luiz Duarte [this message]
2015-07-08 10:54 ` Michael Ellerman
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