I recently experienced the same issue and noticed that it was related to my snmpd flipping out. I'm not sure if its just a buggy version of snmpd that ships with FC5 or if it's an overall issue with SNMPD and virtualized environments. Disabling snmpd resolved it for me, however I'm hoping this issue is resolved some day. Hope this helps. -Alex -----Original Message----- From: fedora-xen-bounces@xxxxxxxxxx [mailto:fedora-xen-bounces@xxxxxxxxxx] On Behalf Of EJacobsh@xxxxxxxxxxxxxxxxxxxx Sent: Wednesday, April 26, 2006 1:17 PM To: fedora-xen@xxxxxxxxxx Subject: [Fedora-xen] File operation causes kernel panic Hello, I'm having a problem with a Dell server (PowerEdge 2850) and a recently installed Fedora Core 5 with Xen kernel (2.6.16-1.2096_FC5xen0). Whenever I try to copy a larger file (128MB) to the server over the network, the server crashes (register dump on the console, remote sessions stop responding). This happens consistently with Anaconda, Samba and WinSCP3. It has happened with yum twice, although it works most of the time. When I reboot the server with a kernel that does not include Xen (2.6.16-1.2096_FC5), the copying works. I need some help figuring out what my next steps should be. I don't see anything unusual in the xend.log (see below). The xend-debug.log is empty. Is there some other place I should look? Are there any other diagnostic tools to use? Thanks for you help. Eric Jacobshagen CONNECT: The Knowledge Network xend.log: [xend] INFO (SrvDaemon:285) Xend Daemon started [xend] INFO (SrvDaemon:289) Xend changeset: unavailable . [xend.XendDomainInfo] DEBUG (XendDomainInfo:199) XendDomainInfo.recreate({'paused': 0, 'cpu_time': 24271818792L, 'ssidref': 0, 'handle': [0, 0, 0, 0, 0, 0, 0, 0, 0, , 0, 0, 0, 0, 0, 0], 'shutdown_reason': 0, 'dying': 0, 'dom': 0, 'mem_kb': 524288, 'maxmem_kb': -4, 'max_vcpu_id': 1, 'crashed': 0, 'running': 1, 'shutdown': 0, 'online_vcpus': 2, 'blocked': 0}) [xend.XendDomainInfo] INFO (XendDomainInfo:211) Recreating domain 0, UUID 00000000-0000-0000-0000-000000000000. [xend.XendDomainInfo] WARNING (XendDomainInfo:233) No vm path in store for existing domain 0 [xend.XendDomainInfo] DEBUG (XendDomainInfo:667) Storing VM details: {'ssidref': '0', 'uuid': '00000000-0000-0000-0000-000000000000', 'on_reboot': 'restart', on_poweroff': 'destroy', 'name': 'Domain-0', 'vcpus': '2', 'vcpu_avail': '3', 'memory': '512', 'on_crash': 'restart', 'maxmem': '512'} [xend.XendDomainInfo] DEBUG (XendDomainInfo:692) Storing domain details: {'cpu/0/availability': 'online', 'memory/target': '524288', 'cpu/1/availability': 'online', 'name': 'Domain-0', 'console/limit': '1048576', 'vm': '/vm/00000000-0000-0000-0000-000000000000', 'domid':'0'} [xend] DEBUG (XendDomain:151) number of vcpus to use is 0 [xend] INFO (SrvServer:114) unix path=/var/lib/xend/xend-socket -- Fedora-xen@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-xen ***************************************************************** <<<Disclaimer>>> In compliance with applicable rules and regulations, Instinet reviews and archives incoming and outgoing email communications, copies of which may be produced at the request of regulators. This message is intended only for the personal and confidential use of the recipients named above. If the reader of this email is not the intended recipient, you have received this email in error and any review, dissemination, distribution or copying is strictly prohibited. If you have received this email in error, please notify the sender immediately by return email and permanently delete the copy you received. Instinet accepts no liability for any content contained in the email, or any errors or omissions arising as a result of email transmission. Any opinions contained in this email constitute the sender's best judgment at this time and are subject to change without notice. Instinet does not make recommendations of a particular security and the information contained in this email should not be considered as a recommendation, an offer or a solicitation of an offer to buy and sell securities. *****************************************************************