[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-users] domU shell prompt freezes after live migration
We are running xen 4.0 on Debian Squeeze in a two-node cluster. We are creating and running Ubuntu (lucid) vms. I have not had trouble with live migration of vms in the past, but on this installation I experience the following problem. When I create a vm I can log into it normally. That is, when I receive a prompt, I can type a command at the prompt, hit return and the command will execute, or if no command is given, the prompt is regenerated on the following line. I can migrate the vm from node to node without a problem. However, on the current installation, after the vm is migrated the first time, the shell, or prompt accessing the vm malfunctions by freezing up. When I log into the migrated vm, I do not receive a prompt. If, then I hit return, I receive the ubuntu server greeting, and then receive a prompt. But this prompt is frozen. Attempts to hit return do not produce a new prompt on a following line, and it is not possible to execute any commands. When I destroy the terminal window and repeat the process, the same thing happens. Any ideas what might be causing this problem?I include configuration data below (which we have always used successfully heretofore). And also I notice that xm top (which shows the vbd_rd and vbd_wr (virtual block device read and write request) information for the vm is 0 after migration is performed. Any help is greatly appreciated. Ben Weaver /etc/inittab [as specified in the Xen installation instructions]: 1:2345:respawn:/sbin/getty 38400 hvc0 2:23:respawn:/sbin/getty 38400 tty1 # NO getty on ttyS0! /etc/xend/xend-config.sxp: (xend-relocation-server yes) (xend-relocation-port 8002) (xend-relocation-address '') (xend-relocation-hosts-allow '') xm top output on vm after migration:... vbd_rd = 0 vbd_wr = 0 (prior to migration xm top shows non-zero values for vbd_rd and vbd_wr). _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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