Date: Tue, 08 Jan 2008 15:06:09 -0800 (PST)
Message-Id: <20080108.150609.43522839.davem@davemloft.net>
To: mingo@elte.hu
Cc: m.kozlowski@tuxland.pl, torvalds@linux-foundation.org,
       linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org,
       a.p.zijlstra@chello.nl
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: <20080108225631.GA7021@elte.hu>
References: <200801081942.17139.m.kozlowski@tuxland.pl>
	<20080108.145038.203528847.davem@davemloft.net>
	<20080108225631.GA7021@elte.hu>
Mime-Version: 1.0
Content-Type: Text/Plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 881
Lines: 25

From: Ingo Molnar <mingo@elte.hu>
Date: Tue, 8 Jan 2008 23:56:31 +0100

> is this anything the core lockdep code could help improve? Let us know 
> if any aspect is hindering you.

No, it's a sparc64 issue.

Another problem I ran into are the huge static table sizes
lockdep uses.  They really need to be either made smaller or
dynamically allocated.

Sparc64 has hard limitations on kernel size (due to firmware
and bootloader issues) and I hit these limits if I am not
careful on SMP with lockdep enabled.

Andi Kleen and I discussed in a thread several weeks ago.
I believe Andi even came up with a suggested direction to
fix this.

--
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/