linux-kernel - Re: [PATCH 3/3] mm: catch memory commitment underflow

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <53AB4BF1.3000504@intel.com>
Date:	Wed, 25 Jun 2014 15:23:45 -0700
From:	Dave Hansen <dave.hansen@...el.com>
To:	Konstantin Khlebnikov <koct9i@...il.com>, linux-mm@...ck.org,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	Hugh Dickins <hughd@...gle.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] mm: catch memory commitment underflow

On 06/24/2014 01:16 PM, Konstantin Khlebnikov wrote:
> reserve;
>  
> +#ifdef CONFIG_DEBUG_VM
> +	WARN_ONCE(percpu_counter_read(&vm_committed_as) <
> +			-(s64)vm_committed_as_batch * num_online_cpus(),
> +			"memory commitment underflow");
> +#endif

Why not use VM_WARN_ON_ONCE()?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/