netdev - Re: [PATCH net-2.6.24 0/3]: More TCP fixes

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Message-ID: <4703B16C.2000106@fr.ibm.com>
Date:	Wed, 03 Oct 2007 17:12:44 +0200
From:	Cedric Le Goater <clg@...ibm.com>
To:	Cedric Le Goater <legoater@...e.fr>
CC:	Ilpo Järvinen <ilpo.jarvinen@...sinki.fi>,
	David Miller <davem@...emloft.net>,
	Netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net-2.6.24 0/3]: More TCP fixes

Cedric Le Goater wrote:
> Ilpo Järvinen wrote:
>> On Wed, 3 Oct 2007, Cedric Le Goater wrote:
>>
>>> Ilpo Järvinen wrote:
>>>> Ah, that's path 1) then... Since you seem to have enough time, I would say 
>>>> that the path 1 is good as well and bugs unrelated to the fix will show up 
>>>> there too...
>>> arg. yes. sorry for the confusion.
>>>
>>>> I should have stated it explicitly that with path 2 those 3 patches should 
>>>> not be applied because the aim is not a fix but reproducal. Path 2 was 
>>>> intentionally left without the potentional fix as then nice backtrace 
>>>> informs when we can stop trying (which would hopefully occurred 
>>>> pretty soon) :-).  But lets discard that path 2...
>>> I have 2 spare nodes so i'll run both. 1) is on already without any issues
>>> i'm just compiling 2)
> 
> Below are the messages I got on 2) right after running ketchup (which does 
> a wget www.kernel.org) 
> 
> not a warning on 1) with your extra verbose patch.

bummer, I got this one on 1) :(

C.

WARNING: at /home/legoater/linux/net-2.6.24.git/net/ipv4/tcp_input.c:2325 tcp_fastretrans_alert()

Call Trace:
 <IRQ>  [<ffffffff8022ddb6>] __wake_up+0x1f/0x4c
 [<ffffffff803fd9d3>] tcp_ack+0xcee/0x18ac
 [<ffffffff80400764>] tcp_rcv_established+0x61f/0x6df
 [<ffffffff8024e8d8>] __lock_acquire+0x8a1/0xf1b
 [<ffffffff8040795b>] tcp_v4_do_rcv+0x3e/0x394
 [<ffffffff804082d5>] tcp_v4_rcv+0x624/0x9b1
 [<ffffffff803ecfa3>] ip_local_deliver+0x1da/0x2a4
 [<ffffffff803ed900>] ip_rcv+0x57c/0x5c4
 [<ffffffff8045ae53>] packet_rcv_spkt+0x19a/0x1a8
 [<ffffffff803ce78e>] netif_receive_skb+0x2ba/0x2de
 [<ffffffff88044505>] :tg3:tg3_poll+0x65d/0x8a4
 [<ffffffff803ce958>] net_rx_action+0xb8/0x191
 [<ffffffff802385cb>] __do_softirq+0x5f/0xe0
 [<ffffffff8020c97c>] call_softirq+0x1c/0x28
 [<ffffffff8020e672>] do_softirq+0x3b/0xb9
 [<ffffffff802386c2>] irq_exit+0x4e/0x50
 [<ffffffff8020e48e>] do_IRQ+0xbe/0xd8
 [<ffffffff80209cb9>] mwait_idle+0x0/0x4d
 [<ffffffff8020bcc6>] ret_from_intr+0x0/0xf
 <EOI>  [<ffffffff80464e10>] __sched_text_start+0x5f0/0x62b
 [<ffffffff80464e10>] __sched_text_start+0x5f0/0x62b
 [<ffffffff80209cfc>] mwait_idle+0x43/0x4d
 [<ffffffff802099fb>] enter_idle+0x22/0x24
 [<ffffffff80209c4f>] cpu_idle+0x9d/0xc0
 [<ffffffff80464513>] rest_init+0x57/0x59
 [<ffffffff8060c82a>] start_kernel+0x2d1/0x2dd
 [<ffffffff8060c14e>] _sinittext+0x14e/0x155

WARNING: at /home/legoater/linux/net-2.6.24.git/net/ipv4/tcp_input.c:2325 tcp_fastretrans_alert()

Call Trace:
 <IRQ>  [<ffffffff8022ddb6>] __wake_up+0x1f/0x4c
 [<ffffffff803fd9d3>] tcp_ack+0xcee/0x18ac
 [<ffffffff80400764>] tcp_rcv_established+0x61f/0x6df
 [<ffffffff8024e8d8>] __lock_acquire+0x8a1/0xf1b
 [<ffffffff8040795b>] tcp_v4_do_rcv+0x3e/0x394
 [<ffffffff804082d5>] tcp_v4_rcv+0x624/0x9b1
 [<ffffffff803ecfa3>] ip_local_deliver+0x1da/0x2a4
 [<ffffffff803ed900>] ip_rcv+0x57c/0x5c4
 [<ffffffff8045ae53>] packet_rcv_spkt+0x19a/0x1a8
 [<ffffffff803ce78e>] netif_receive_skb+0x2ba/0x2de
 [<ffffffff88044505>] :tg3:tg3_poll+0x65d/0x8a4
 [<ffffffff803ce958>] net_rx_action+0xb8/0x191
 [<ffffffff802385cb>] __do_softirq+0x5f/0xe0
 [<ffffffff8020c97c>] call_softirq+0x1c/0x28
 [<ffffffff8020e672>] do_softirq+0x3b/0xb9
 [<ffffffff802386c2>] irq_exit+0x4e/0x50
 [<ffffffff8020e48e>] do_IRQ+0xbe/0xd8
 [<ffffffff80209cb9>] mwait_idle+0x0/0x4d
 [<ffffffff8020bcc6>] ret_from_intr+0x0/0xf
 <EOI>  [<ffffffff80464e10>] __sched_text_start+0x5f0/0x62b
 [<ffffffff80464e10>] __sched_text_start+0x5f0/0x62b
 [<ffffffff80209cfc>] mwait_idle+0x43/0x4d
 [<ffffffff802099fb>] enter_idle+0x22/0x24
 [<ffffffff80209c4f>] cpu_idle+0x9d/0xc0
 [<ffffffff80464513>] rest_init+0x57/0x59
 [<ffffffff8060c82a>] start_kernel+0x2d1/0x2dd


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