Network crashes under heavy load
in [Debian]
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From: Nathen on 4 Jul 2010 16:10 For some reason my server stops responding to network traffic (shares go offline, no response to SSH or ping, etc) after heavy load - transferring large amounts of data via Samba or running several iperf benchmarks causes it, however the system still responds to the power button so shuts down when it's pressed. I'm using an Intel D510MO board with Realtek 8111DL network controller which I'm guessing has something to do with it, I could be wrong. I think it might be a bug but I thought it best to ask here first. Thanks. :) -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/AANLkTims_CIOcLWbuOWylrGvxHsUfNQkE_5MZ1KmR0Pe(a)mail.gmail.com
From: Andrei Popescu on 4 Jul 2010 17:40 On Du, 04 iul 10, 20:53:32, Nathen wrote: > For some reason my server stops responding to network traffic (shares > go offline, no response to SSH or ping, etc) after heavy load - > transferring large amounts of data via Samba or running several iperf > benchmarks causes it, however the system still responds to the power > button so shuts down when it's pressed. I'm using an Intel D510MO > board with Realtek 8111DL network controller which I'm guessing has > something to do with it, I could be wrong. I think it might be a bug > but I thought it best to ask here first. > Thanks. :) Anything interesting in the logs (/var/log/syslog)? Do you have a different adapter (preferably different chipset) to test with? Are you sure it's not the switch (if you have any)? You might also try to replace the cable(s), you never know. Regards, Andrei -- Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic
From: Ron Johnson on 4 Jul 2010 18:10 On 07/04/2010 02:53 PM, Nathen wrote: > For some reason my server stops responding to network traffic (shares > go offline, no response to SSH or ping, etc) after heavy load - > transferring large amounts of data via Samba or running several iperf How heavy is "heavy"? > benchmarks causes it, however the system still responds to the power > button so shuts down when it's pressed. I'm using an Intel D510MO > board with Realtek 8111DL network controller which I'm guessing has Yeah, probably. > something to do with it, I could be wrong. I think it might be a bug > but I thought it best to ask here first. Intel NICs seem to be very popular on servers, and are very well supported under Linux. -- Seek truth from facts. -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/4C310458.9030104(a)cox.net
From: Jaime Di Cristina on 4 Jul 2010 21:10 On Sun, Jul 04, 2010 at 08:53:32PM +0100, Nathen wrote: > For some reason my server stops responding to network traffic (shares > go offline, no response to SSH or ping, etc) after heavy load - > transferring large amounts of data via Samba or running several iperf > benchmarks causes it, however the system still responds to the power > button so shuts down when it's pressed. I'm using an Intel D510MO > board with Realtek 8111DL network controller which I'm guessing has > something to do with it, I could be wrong. I think it might be a bug > but I thought it best to ask here first. > Thanks. :) Hello: Are you running the latest BIOS version? Check this thread: http://bbs.archlinux.org/viewtopic.php?pid=771174 . A poster there said that network problems went away after updating the BIOS to version 0210. Also there are some vague reports of network problems in the newegg.com reviews for this board. One user says that the problems can be solved by "manually compiling drivers from Realtek". I hope that you can solve the problem and would appreciate if you shared your results. Jaime -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/20100705010440.GA3443(a)lpc.lan
From: Nathen on 5 Jul 2010 06:10 Thanks for replying. To answer your questions - I couldn't find anything unusual in the logs, the first message around the time of the crash was the shutdown message when I pressed the power button. I have a PCI realtek card I could try with, I think it's a different chipset so I'll try with that, no switch and a different cable when I get home later. Sorry, I should have been more specific - it usually happens after copying tens of GB but it seems random because it survives more sometimes. For example I was backing up a number of large files (about 40GB total) which caused a crash the first time I tried, halfway through copying a file but everything copied fine after a reboot. Also running iperf about ten times caused another crash but again this seems variable. An Intel NIC would usually be my first choice but since this board has no PCIe slots I'm hesitant to use a PCI NIC if it's going to limit network bandwidth. I hope that answers all your questions and I'll try updating BIOS, drivers and run those tests when I get home. Thanks -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/AANLkTilt2XbW_CzIYSXBbiwikMK8__H_vBkeTUywiuwb(a)mail.gmail.com
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