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Re: [Xen-devel] More Xen troubles (with xend this time)
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From: Keir F. <Kei...@cl...> - 2004-11-30 14:09:52
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Unfortunately when a domain crashes it seems to confuse xend such that
it isn't even restartable. So then you need to reboot the
machine. Clearly this needs looking into. :-)
-- Keir
>
> When trying to reproduce a crash (when I do "xm restore foo.xen", the
> restored VM crashed instantaneously), I hit the following "bug" (I hope
> that the problem lies between my keyboard and my chair and that I didn't
> find another real bug) :
>
> I did restore the domain, then noticed it was crashed ("-----c" in xm
> list). I tried to destroy it, but it didn't work. So I stopped xend,
> restarted it ... And there it goes :
>
> isnpro:~# xm list
> (111, 'Connection refused')
> Error: Error connecting to xend, is xend running?
>
> isnpro:~# xend start
>
> isnpro:~# xm list
> (111, 'Connection refused')
> Error: Error connecting to xend, is xend running?
>
> isnpro:~# ps aux | grep x
> root 644 0.0 0.0 0 0 ? S Nov29 0:02 [xenblkd]
> root 14003 0.0 1.8 4308 1112 ? S 14:37 0:00 xfrd
>
> isnpro:~# lsof | grep LISTEN
> portmap 970 daemon 4u IPv4 2122 TCP
> *:sunrpc (LISTEN)
> exim4 1113 Debian-exim 0u IPv4 2291 TCP
> localhost:smtp (LISTEN)
> inetd 1119 root 4u IPv4 2304 TCP
> *:discard (LISTEN)
> inetd 1119 root 6u IPv4 2306 TCP
> *:daytime (LISTEN)
> inetd 1119 root 7u IPv4 2307 TCP
> *:time (LISTEN)
> sshd 1129 root 3u IPv4 2329 TCP
> *:ssh (LISTEN)
> rpc.statd 1135 root 6u IPv4 2369 TCP
> *:893 (LISTEN)
> xfrd 14003 root 2u IPv4 274713 TCP
> *:8002 (LISTEN)
>
> isnpro:~# tail /var/log/xend.log
> [2004-11-30 14:17:00 xend] INFO (XendRoot:91) EVENT> xend.domain.exit
> ['xipetotec', '22', 'crash']
> [2004-11-30 14:17:00 xend] INFO (XendRoot:91) EVENT> xend.domain.destroy
> ['xipetotec', '22']
> [2004-11-30 14:17:28 xend] INFO (SrvDaemon:607) Xend Daemon started
> [2004-11-30 14:18:35 xend] INFO (SrvDaemon:607) Xend Daemon started
> [2004-11-30 14:19:57 xend] INFO (SrvDaemon:607) Xend Daemon started
> [2004-11-30 14:23:45 xend] INFO (SrvDaemon:607) Xend Daemon started
> [2004-11-30 14:25:46 xend] INFO (SrvDaemon:607) Xend Daemon started
> [2004-11-30 14:31:43 xend] INFO (SrvDaemon:607) Xend Daemon started
> [2004-11-30 14:31:54 xend] INFO (SrvDaemon:607) Xend Daemon started
> [2004-11-30 14:37:40 xend] INFO (SrvDaemon:607) Xend Daemon started
>
> (many "Xend Daemon started" messages since I tried many times to restart
> it...)
>
> So I thought that xfrd (xend?) was running on port 8002 instead of 8000,
> and I tried to setup a redir (who knows!) :
>
> isnpro:~# redir --cport 8002 --lport 8000 &
> [1] 14025
> isnpro:~# xm list
> Traceback (most recent call last):
> File "/usr/sbin/xm", line 9, in ?
> main.main(sys.argv)
> File
> "/root/Xen/xen-2.0-testing.bk/dist/install/lib/python/xen/xm/main.py",
> line 795, in main
> File
> "/root/Xen/xen-2.0-testing.bk/dist/install/lib/python/xen/xm/main.py",
> line 106, in main
> File
> "/root/Xen/xen-2.0-testing.bk/dist/install/lib/python/xen/xm/main.py",
> line 124, in main_call
> File
> "/root/Xen/xen-2.0-testing.bk/dist/install/lib/python/xen/xm/main.py",
> line 343, in main
> AttributeError: 'str' object has no attribute 'sort'
>
> Okay, it seems it wasn't a very clever idea after all.
>
> What should I try now ? (I don't want to reboot the thing yet, since the
> virtual domains are still running and I can't stop them right now).
>
>
>
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