Date: Tue, 16 Feb 2010 09:23:33 -0800 From: Maxim Sobolev <sobomax@FreeBSD.org> To: Miroslav Lachman <000.fbsd@quip.cz> Cc: Alfred Perlstein <alfred@FreeBSD.org>, freebsd-net@FreeBSD.org, Sergey Babkin <babkin@verizon.net>, "David G. Lawrence" <dg@dglawrence.com>, Jack Vogel <jfvogel@gmail.com> Subject: Re: Sudden mbuf demand increase and shortage under the load Message-ID: <4B7AD495.30900@FreeBSD.org> In-Reply-To: <4B7A7D2C.9040200@quip.cz> References: <4B79297D.9080403@FreeBSD.org> <4B79205B.619A0A1A@verizon.net> <4B7A38F5.3090404@FreeBSD.org> <4B7A7D2C.9040200@quip.cz>
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Miroslav Lachman wrote: > Can it be related to this issue somehow? > > http://lists.freebsd.org/pipermail/freebsd-current/2009-August/011013.html > http://lists.freebsd.org/pipermail/freebsd-current/2009-August/010740.html > > It was tested on FreeBSD 8 and high UDP traffic on igb interfaces emits > messages "GET BUF: dmamap load failure - 12" and later results in kernel > panic. > We have not received any response to this report. Could be the issue, however in our case there is no panic, just that all userland activity in the system ceases for 2 minutes after it reaches certain network load level. -Maxim
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