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Date: Thu, 03 Apr 2008 15:40:08 +0200 From: Soeren Sonnenburg <kernel@....de> To: Ilpo Järvinen <ilpo.jarvinen@...sinki.fi> Cc: Linux Kernel <linux-kernel@...r.kernel.org>, Netdev <netdev@...r.kernel.org> Subject: Re: 2.6.25-rc8: WARNING: at net/ipv4/tcp_input.c:2173 tcp_mark_head_lost+0x11d/0x150() On Thu, 2008-04-03 at 16:26 +0300, Ilpo Järvinen wrote: > On Thu, 3 Apr 2008, Soeren Sonnenburg wrote: > > > trying to download things, I am seeing this (ignore the tainted, it is > > from madwifi and although the module is loaded the device was never > > used) > > > > Could anyone make sense of this please? > > ...I'm just trying to find out who and where invariants of the TCP code > are broken. These were relatively recently enabled (pre-2.6.24 just didn't > care too much). A number of long standing issues plus bugs from my > modifications have been fixed because of the more rigid checking :-). > > > ------------[ cut here ]------------ > > WARNING: at net/ipv4/tcp_input.c:2173 tcp_mark_head_lost+0x11d/0x150() > > > ------------[ cut here ]------------ > > WARNING: at net/ipv4/tcp_input.c:1771 tcp_enter_frto+0x267/0x270() > > > ------------[ cut here ]------------ > > WARNING: at net/ipv4/tcp_input.c:2532 tcp_ack+0x1a6f/0x1d60() > > Can you reproduce it? Yes, by massively downloading things :-) But I have no real recipe to make it easily reproducible... Looks like you are in fact interested in: grep WARNING: /var/log/kern.log | cut -c 40- | sort -u net/ipv4/tcp_input.c:1771 tcp_enter_frto+0x267/0x270() net/ipv4/tcp_input.c:2173 tcp_mark_head_lost+0x11d/0x150() net/ipv4/tcp_input.c:2532 tcp_ack+0x1a6f/0x1d60() net/ipv4/tcp_input.c:3067 tcp_ack+0x1d2b/0x1d60() > Please include netdev next time while report networking related problems. OK Soeren -- 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/
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