From: Eric Dumazet <eric.dumazet@gmail.com>
To: Rafael Aquini <aquini@redhat.com>
Cc: Ben Greear <greearb@candelatech.com>,
Francois Romieu <romieu@fr.zoreil.com>,
atomlin@redhat.com, netdev@vger.kernel.org, davem@davemloft.net,
edumazet@google.com, pshelar@nicira.com, mst@redhat.com,
alexander.h.duyck@intel.com, riel@redhat.com,
sergei.shtylyov@cogentembedded.com, linux-kernel@vger.kernel.org
Subject: Re: [Patch v2] skbuff: Hide GFP_ATOMIC page allocation failures for dropped packets
Date: Tue, 28 May 2013 10:46:01 -0700 [thread overview]
Message-ID: <1369763161.3301.545.camel@edumazet-glaptop> (raw)
In-Reply-To: <20130528174304.GD11614@optiplex.redhat.com>
On Tue, 2013-05-28 at 14:43 -0300, Rafael Aquini wrote:
>
> Perhaps the explanation is because we're looking into old stuff bad effects,
> then. But just to list a few for your appreciation:
> --------------------------------------------------------
> --------------------------------------------------------
> May 14 09:00:34 ifil03 kernel: swapper: page allocation failure. order:1,
> mode:0x20
> May 14 09:00:34 ifil03 kernel: Pid: 0, comm: swapper Not tainted
> 2.6.32-220.el6.x86_64 #1
> May 14 09:00:34 ifil03 kernel: Call Trace:
> May 14 09:00:34 ifil03 kernel: <IRQ> [<ffffffff81123f0f>] ?
> __alloc_pages_nodemask+0x77f/0x940
> May 14 09:00:34 ifil03 kernel: [<ffffffff8115ddc2>] ? kmem_getpages+0x62/0x170
> May 14 09:00:34 ifil03 kernel: [<ffffffff8115e9da>] ? fallback_alloc+0x1ba/0x270
> May 14 09:00:34 ifil03 kernel: [<ffffffff8115e42f>] ? cache_grow+0x2cf/0x320
> May 14 09:00:34 ifil03 kernel: [<ffffffff8115e759>] ?
> ____cache_alloc_node+0x99/0x160
> May 14 09:00:34 ifil03 kernel: [<ffffffff8115f53b>] ?
> kmem_cache_alloc+0x11b/0x190
> May 14 09:00:34 ifil03 kernel: [<ffffffff8141f528>] ? sk_prot_alloc+0x48/0x1c0
> May 14 09:00:34 ifil03 kernel: [<ffffffff8141f7b2>] ? sk_clone+0x22/0x2e0
> May 14 09:00:34 ifil03 kernel: [<ffffffff8146ca26>] ? inet_csk_clone+0x16/0xd0
> May 14 09:00:34 ifil03 kernel: [<ffffffff814858f3>] ?
> tcp_create_openreq_child+0x23/0x450
> May 14 09:00:34 ifil03 kernel: [<ffffffff814832dd>] ?
> tcp_v4_syn_recv_sock+0x4d/0x2a0
> May 14 09:00:34 ifil03 kernel: [<ffffffff814856b1>] ? tcp_check_req+0x201/0x420
> May 14 09:00:34 ifil03 kernel: [<ffffffff8147b166>] ?
> tcp_rcv_state_process+0x116/0xa30
> May 14 09:00:34 ifil03 kernel: [<ffffffff81482cfb>] ? tcp_v4_do_rcv+0x35b/0x430
> May 14 09:00:34 ifil03 kernel: [<ffffffff81484471>] ? tcp_v4_rcv+0x4e1/0x860
> May 14 09:00:34 ifil03 kernel: [<ffffffff814621fd>] ?
> ip_local_deliver_finish+0xdd/0x2d0
> May 14 09:00:34 ifil03 kernel: [<ffffffff81462488>] ? ip_local_deliver+0x98/0xa0
> May 14 09:00:34 ifil03 kernel: [<ffffffff8146194d>] ? ip_rcv_finish+0x12d/0x440
> May 14 09:00:34 ifil03 kernel: [<ffffffff8101bd86>] ?
> intel_pmu_enable_all+0xa6/0x150
> May 14 09:00:34 ifil03 kernel: [<ffffffff81461ed5>] ? ip_rcv+0x275/0x350
> May 14 09:00:34 ifil03 kernel: [<ffffffff8142bedb>] ?
> __netif_receive_skb+0x49b/0x6e0
> May 14 09:00:34 ifil03 kernel: [<ffffffff8142df88>] ?
> netif_receive_skb+0x58/0x60
> May 14 09:00:34 ifil03 kernel: [<ffffffffa00a0a9e>] ?
> vmxnet3_rq_rx_complete+0x36e/0x880 [vmxnet3]
> ....
> --
I hope you do realize this path has nothing to do with skb allocation ,
but socket cloning ?
next prev parent reply other threads:[~2013-05-28 17:46 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-26 20:45 [Patch v2] skbuff: Hide GFP_ATOMIC page allocation failures for dropped packets atomlin
2013-05-27 18:18 ` Rafael Aquini
2013-05-27 22:41 ` Francois Romieu
2013-05-28 16:00 ` Ben Greear
2013-05-28 16:15 ` Rafael Aquini
2013-05-28 16:19 ` Ben Greear
2013-05-28 16:29 ` Eric Dumazet
2013-05-28 17:43 ` Rafael Aquini
2013-05-28 17:46 ` Eric Dumazet [this message]
2013-05-28 18:03 ` Eric Dumazet
2013-05-28 18:19 ` Joe Perches
2013-05-28 21:32 ` Rik van Riel
2013-05-28 17:29 ` Joe Perches
2013-05-28 21:30 ` Rik van Riel
-- strict thread matches above, loose matches on Subject: below --
2013-05-26 20:19 atomlin
2013-05-27 17:39 ` Rik van Riel
2013-05-27 22:25 ` Eric Dumazet
2013-05-28 4:31 ` Joe Perches
2013-05-28 6:04 ` Eric Dumazet
2013-05-28 6:08 ` Joe Perches
2013-05-28 17:15 ` Debabrata Banerjee
2013-05-29 7:36 ` Rik van Riel
2013-05-27 17:56 ` Sergei Shtylyov
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