Date: Tue, 08 Jan 2008 14:50:38 -0800 (PST)
Message-Id: <20080108.145038.203528847.davem@davemloft.net>
To: m.kozlowski@tuxland.pl
Cc: torvalds@linux-foundation.org, linux-kernel@vger.kernel.org,
       sparclinux@vger.kernel.org
Subject: Re: Linux 2.6.24-rc7: sparc64: WARNING: at
 kernel/lockdep_proc.c:267 lockdep_stats_show()
From: David Miller <davem@davemloft.net>
In-Reply-To: <200801081942.17139.m.kozlowski@tuxland.pl>
References: <alpine.LFD.1.00.0801061410290.3148@woody.linux-foundation.org>
	<200801081942.17139.m.kozlowski@tuxland.pl>
Mime-Version: 1.0
Content-Type: Text/Plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1030
Lines: 28

From: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Date: Tue, 8 Jan 2008 19:42:16 +0100

> Hello,
> 
> 	Got this when doing usual looping over /proc entries on fresh test kernel:
> 
> WARNING: at kernel/lockdep_proc.c:267 lockdep_stats_show()
> Call Trace:
>  [0000000000492704] lockdep_stats_show+0x6ac/0x6c0
>  [00000000004eb4b4] seq_read+0x5c/0x340
>  [000000000050b2bc] proc_reg_read+0x64/0xa0
>  [00000000004cd72c] vfs_read+0x74/0x120
>  [00000000004cdb4c] sys_read+0x34/0x60
>  [00000000004062d4] linux_sparc_syscall32+0x3c/0x40
>  [0000000000012ff4] 0x12ffc

Please turn off lockdep on sparc64, currently it not
reliable.  I have many things to audit, including how
the stack frames are presented to the lockdep layer.

So any problem you run into can be due to issues like
that.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/