From: Cedric Le Goater <legoater@free.fr>
To: "Ilpo Järvinen" <ilpo.jarvinen@helsinki.fi>
Cc: Andrew Morton <akpm@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
Netdev <netdev@vger.kernel.org>,
David Miller <davem@davemloft.net>
Subject: Re: 2.6.23-rc8-mm2 - tcp_fastretrans_alert() WARNING
Date: Sat, 29 Sep 2007 16:55:13 +0200 [thread overview]
Message-ID: <46FE6751.3050205@free.fr> (raw)
In-Reply-To: <Pine.LNX.4.64.0709291532200.6776@kivilampi-30.cs.helsinki.fi>
Ilpo Järvinen wrote:
> On Fri, 28 Sep 2007, Ilpo Järvinen wrote:
>> On Fri, 28 Sep 2007, Cedric Le Goater wrote:
>>
>>> I just found that warning in my logs. It seems that it's been
>>> happening since rc7-mm1 at least.
>>>
>>> WARNING: at /home/legoater/linux/2.6.23-rc8-mm2/net/ipv4/tcp_input.c:2314 tcp_fastretrans_alert()
>>>
>>> Call Trace:
>>> <IRQ> [<ffffffff8040fdc3>] tcp_ack+0xcd6/0x1894
>>> ...snip...
>> ...Thanks for the report, I'll have look what could still break
>> fackets_out...
>
> I think this one is now clear to me, tcp_fragment/collapse adjusts
> fackets_out (incorrectly) also for reno flow when there were some dupACKs
> that made sacked_out != 0. Could you please try if patch below proves all
> them to be of non-SACK origin... In case that's true, it's rather
> harmless, I'll send a fix on Monday or so (this would anyway be needed)...
> If you find out that them occur with SACK enabled flow, that would be
> more interesting and requires more digging...
I'm trying now to reproduce this WARNING.
It seems that the n/w behaves differently during the week ends. Probably
taking a break.
C.
next prev parent reply other threads:[~2007-09-29 14:57 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-27 9:22 2.6.23-rc8-mm2 Andrew Morton
2007-09-27 10:52 ` 2.6.23-rc8-mm2 - drivers/net/ibm_newemac/mal - broken Kamalesh Babulal
2007-09-27 15:19 ` 2.6.23-rc8-mm2: problems on HP nx6325 Rafael J. Wysocki
2007-09-27 15:59 ` Rafael J. Wysocki
2007-09-27 15:49 ` Thomas Gleixner
2007-09-28 21:31 ` Rafael J. Wysocki
2007-09-27 16:53 ` Sam Ravnborg
2007-09-27 17:33 ` Randy Dunlap
2007-09-27 19:19 ` Sam Ravnborg
2007-09-27 19:48 ` Rafael J. Wysocki
2007-09-27 19:37 ` Randy Dunlap
2007-09-27 20:01 ` Rafael J. Wysocki
2007-09-27 19:18 ` 2.6.23-rc8-mm2: BUG near reiserfs_xattr_set Laurent Riffard
2007-09-27 19:48 ` Andrew Morton
2007-09-27 19:48 ` Andrew Morton
2007-09-27 20:05 ` Dave Hansen
2007-09-27 20:26 ` Christoph Hellwig
2007-09-27 20:53 ` [RFC][PATCH] make reiserfs stop using 'struct file' for internal xattr operations Dave Hansen
2007-09-27 21:04 ` Christoph Hellwig
2007-09-27 21:27 ` Dave Hansen
2007-09-27 21:51 ` Andrew Morton
2007-09-27 21:54 ` Andrew Morton
2007-09-27 22:02 ` Peter Zijlstra
2007-09-28 7:16 ` Christoph Hellwig
2007-09-28 7:29 ` [RFC][PATCH] stop abusing filp_open in reiserfs journal code Christoph Hellwig
2007-09-28 7:29 ` Christoph Hellwig
2007-09-28 7:29 ` Christoph Hellwig
2007-09-28 2:40 ` WARNING: at arch/x86_64/kernel/smp.c:397 smp_call_function_mask() Fengguang Wu
2007-09-28 2:40 ` Fengguang Wu
2007-09-28 8:52 ` Laurent Vivier
2007-09-28 9:09 ` Andrew Morton
2007-09-28 9:18 ` Laurent Vivier
2007-09-28 9:34 ` Andrew Morton
2007-09-28 12:07 ` Laurent Vivier
2007-09-29 6:59 ` Fengguang Wu
2007-09-29 6:59 ` Fengguang Wu
2007-09-29 8:15 ` Fengguang Wu
2007-09-29 8:15 ` Fengguang Wu
2007-10-02 9:11 ` [PATCH][RESEND] call free_init_pages() with irqs enabled in alternative_instructions() Fengguang Wu
2007-10-02 9:11 ` Fengguang Wu
2007-09-28 15:42 ` 2.6.23-rc8-mm2 - tcp_fastretrans_alert() WARNING Cedric Le Goater
2007-09-28 19:10 ` Ilpo Järvinen
2007-09-29 12:44 ` Ilpo Järvinen
2007-09-29 14:55 ` Cedric Le Goater [this message]
2007-09-29 20:49 ` Ilpo Järvinen
2007-10-01 9:26 ` Cedric Le Goater
2007-10-02 10:26 ` Ilpo Järvinen
2007-10-02 20:06 ` Ilpo Järvinen
2007-10-02 21:48 ` Ilpo Järvinen
2007-09-28 16:30 ` /proc/net/ bad hard links count [Was: 2.6.23-rc8-mm2] Jiri Slaby
2007-09-28 17:03 ` Eric W. Biederman
2007-09-29 9:37 ` 2.6.23-rc8-mm2 Dave Young
2007-09-29 15:19 ` 2.6.23-rc8-mm2 Greg KH
2007-09-30 1:29 ` 2.6.23-rc8-mm2 Dave Young
2007-09-30 5:18 ` 2.6.23-rc8-mm2 thunder7
2007-10-08 6:43 ` 2.6.23-rc8-mm2 Dave Young
2007-09-30 2:26 ` 2.6.23-rc8-mm2 Valdis.Kletnieks
2007-09-30 8:50 ` 2.6.23-rc8-mm2 Andrew Morton
2007-09-30 20:01 ` 2.6.23-rc8-mm2 Rafael J. Wysocki
2007-10-01 17:12 ` 2.6.23-rc8-mm2 Valdis.Kletnieks
2007-10-01 16:12 ` 2.6.23-rc8-mm2 Valdis.Kletnieks
2007-09-30 4:10 ` 2.6.23-rc8-mm2 - PowerPC link failure at arch/powerpc/kernel/head_64.o Kamalesh Babulal
2007-09-30 9:37 ` Kamalesh Babulal
2007-09-30 9:37 ` Kamalesh Babulal
2007-10-09 17:49 ` 2.6.23-rc8-mm2 Matt Mackall
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