From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 6 May 2002 05:05:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 6 May 2002 05:05:57 -0400 Received: from gw.chygwyn.com ([62.172.158.50]:17924 "EHLO gw.chygwyn.com") by vger.kernel.org with ESMTP id ; Mon, 6 May 2002 05:05:55 -0400 From: Steven Whitehouse Message-Id: <200205060845.JAA07094@gw.chygwyn.com> Subject: Re: Kernel deadlock using nbd over acenic driver. To: chen_xiangping@emc.com (chen, xiangping) Date: Mon, 6 May 2002 09:45:49 +0100 (BST) Cc: linux-kernel@vger.kernel.org ('linux-kernel@vger.kernel.org') In-Reply-To: from "chen, xiangping" at May 05, 2002 10:26:57 PM Organization: ChyGywn Limited X-RegisteredOffice: 7, New Yatt Road, Witney, Oxfordshire. OX28 1NU England X-RegisteredNumber: 03887683 Reply-To: Steve Whitehouse X-Mailer: ELM [version 2.5 PL1] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, What kernel version are you using ? I suspect that its not the ethernet driver causing this deadlock. Am I right in thinking that if you kill the nbd server process that the hanging process is released ? Steve. > > Hi, > > I encounter a deadlock situation when using nbd device over gigabit > ethernet. The network card is 3c 985 giga card using acenic driver. When the > network has some significant back ground traffic, even making a ext2 file > system can not succeed. When the deadlock happens, the nbd client daemon > just stuck in tcp_recvmsg() without receiving any data, and the sender > threads continue to send out requests until the whole system hangs. Even I > set the nbd client daemon SNDTIMEO, the nbd client daemon could not exit > from tcp_recvmsg(). > > Is there any known problem with the acenic driver? How can I identify it is > a problem of the NIC driver, or somewhere else? > > Thanks for help! > > > Xiangping Chen > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >