On 02/17/2011 10:31 AM, onlineque onlineque wrote: > Hello, > > I have this problem - I have installation of Xen and Centos 5 (all RPMs are from Centos repositories). > I have several DomU virtual machines running on this machine. > When I try to copy some bigger amount of data from another physical computer to Dom0/DomU on this machine, the network freezes. The link is still up, I can see that the connection really links on the switch, but nothing is received or sent to the network. I tried to stop all the DomUs, stop the network, unload the network drivers from memory and loading them again and starting the network, but the problem persists. Only reboot solves the problem. > Sometimes the amount of data have to be around gigabytes (last time it was 10GB), sometimes 500MB is enough to stop the network... > I also tried to change the NIC, but the behavior is the same. > Btw. logs don't say anything :-/ > > Any idea ? Thank you very much ! > Replace the Realtek network card (preferably with an Intel ! ) if you are using it. Try http://www.broadcom.com/support/ethernet_nic/driver-sla.php?driver=570x-Linux if using the BCM5705 interface. If this solves your problem, file a RFE in bugzlla.redhat.com because the current driver both in RHEL6 and in RHEL 5.6 is still based on version 1.108 Manuel > Vladimir > > > PS: this is the output of my lspci: > > 00:00.0 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge > 00:00.1 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge > 00:00.2 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge > 00:00.3 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge > 00:00.4 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge > 00:00.7 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge > 00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI bridge [K8T800/K8T890 South] > 00:05.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10) > 00:0b.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5705 Gigabit Ethernet (rev 03) > 00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller (rev 80) > 00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) > 00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81) > 00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81) > 00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81) > 00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81) > 00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86) > 00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge [KT600/K8T800/K8T890 South] > 00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60) > 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration > 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map > 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller > 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control > 00:19.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration > 00:19.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map > 00:19.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller > 00:19.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control > 01:00.0 VGA compatible controller: nVidia Corporation NV15 [GeForce2 GTS/Pro] (rev a4) > > output of uname -a: > > Linux hydra 2.6.18-194.11.4.el5xen #1 SMP Tue Sep 21 05:40:24 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux > > > _______________________________________________ > CentOS-virt mailing list > CentOS-virt at centos.org > http://lists.centos.org/mailman/listinfo/centos-virt -- Manuel Wolfshant linux registered user #131416 IT manager NoBug Consulting SRL A: Yes. >Q: Are you sure? >>A: Because it reverses the logical flow of conversation. >>>Q: Why is top posting frowned upon?