linux-kernel - Re: [PATCH] ovs: do not allocate memory from offline numa node

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: <20151005.064451.2162263446408087981.davem@davemloft.net>
Date:	Mon, 05 Oct 2015 06:44:51 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	khlebnikov@...dex-team.ru
Cc:	dev@...nvswitch.org, pshelar@...ira.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, vbabka@...e.cz, linux-mm@...ck.org
Subject: Re: [PATCH] ovs: do not allocate memory from offline numa node

From: Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
Date: Fri, 02 Oct 2015 13:18:22 +0300

> When openvswitch tries allocate memory from offline numa node 0:
> stats = kmem_cache_alloc_node(flow_stats_cache, GFP_KERNEL | __GFP_ZERO, 0)
> It catches VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES || !node_online(nid))
> [ replaced with VM_WARN_ON(!node_online(nid)) recently ] in linux/gfp.h
> This patch disables numa affinity in this case.
> 
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@...dex-team.ru>

Applied, but this should probably use NUMA_NO_NODE unconditionally.
--
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/