TheGrebs.com:IRC Logs:#xen:2006:01:22

---	Log	opened Sun Jan 22 07:56:58 2006
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10:09	<cfreak>	Error: Device 0 (vif) could not be connected. Hotplug scripts not working.
10:10	<cfreak>	i updated from 2.0.7 to 3.0
10:15	<mjt>	whee
10:16	<mjt>	the same thing as i tried to fix for two days ;)
10:16	<mjt>	check your /var/log/xen-hotplug
10:19	<cfreak>	there is no such file hmm
10:20	<mjt>	xen-hotplug.log it is
10:20	<mjt>	very difficult to find, heh ;)
10:21	<cfreak>	/var/log# ls xen
10:21	<cfreak>	xend-debug.log xend.log
10:21	<mjt>	have you upgraded the scripts too?
10:21	<mjt>	that file gets created by /etc/xen/scripts/*
10:22	<mjt>	btw, what's your /bin/sh ?
10:22	<cfreak>	bash
10:22	<mjt>	k
10:22	<cfreak>	i moved /etc/xen to /etc/xen.old and make copied new scripts
10:24	<cfreak>	http://pastebin.com/517597
10:25	<mjt>	in order to configure various v* stuff (vif, vbd etc), xen is calling scripts in /etc/xen/scripts/. Eg vif-brige. which opens /var/log/xen-hotplug.log as a first thing.
10:26	<mjt>	so for some reason those scripts do not work, or aren't being called.
10:27	<mjt>	a trivial guess: are they executable (those which does not end with .sh) ?
10:27	<cfreak>	sure they are
10:28	<mjt>	btw, that xend.log stuff you pasted is typical for your error message -- it's just how it looks like ;)
10:29	<mjt>	it's always 'storing blabla.. waiting for device.. failed'
10:29	<mjt>	# /etc/xen/vif-bridge
10:29	<mjt>	#
10:29	<mjt>	# Script for configuring a vif in bridged mode.
10:29	<mjt>	# The hotplugging system will call this script if it is specified either in
10:29	<mjt>	# the device configuration given to Xend, or the default Xend configuration
10:29	<mjt>	# in /etc/xen/xend-config.sxp. If the script is specified in neither of those
10:29	<mjt>	# places, then this script is the default.
10:29	<mjt>	may be of some use too :)
10:40	<cfreak>	what do i have to change for bridged mode on debian sarge
11:28	<cfreak>	"started domain tunnel" - but i cannot use xm console or ping it
11:31	<mjt>	what was the prob with vif?
11:35	<cfreak>	apt-get install ifrename hotplug
11:35	<cfreak>	solved this problem
11:36	<mjt>	aha
11:36	<mjt>	so xen scripts wasn't executed
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11:39	<thelsdj>	anyone got an idea as to why only 3192 mb ram would show up on a 64bit build (when 4gb is installed?)
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17:05	<grifferz>	hmm, in xen 2.0.x for the dom0 firewall I need to apply the rules to interface xen-br0 for traffic going to dom0. in xen 3.x it appears I should use eth0, not xenbr0 or peth0
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19:20	<yorkedork>	Unsure if this is the appropriate forum for such a question; however, I was wondering if some well-integrated developers knew of the state of of cpufreq integration across Xen. I'm beginning to work on power-aware work inside Xen, and the closest thing I have seen yet is TODO work on TSC synchronization on the xenwiki TODO list. Thoughts, suggestions?
19:40	<sdague>	yorkedork: you are best off sending an email to xen-devel for a question like that
19:40	<aliguori>	yorkedork, we discussed power-management at the summit actually, what are you working on in particular?
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19:42	<yorkedork>	(i apologize for my excitement, i haven't been able to speak with anyone who has a reasonable awareness/knowledge of the subject)
19:43	<aliguori>	yorkedork, sdague sending a note to xen-devel is not a bad idea btw, there is certainly more than a handful of people interested in the topic
19:43	<yorkedork>	my work includes implementing a scheduler in the hypervisor that can dynamically scale/pack the system globally
19:43	<yorkedork>	leveraging existing cpufreqd work in the linux kernel and some profiling work out of hp last year
19:44	<aliguori>	ah, well, the current problem area here is figuring out the load of all of the individual domains
19:44	<aliguori>	once you have that, it should be relatively straight forward to doing scaling in dom0
19:45	<yorkedork>	well, i'll be basing this on previous work on an existing system that using perf. counter and related informatino
19:45	<yorkedork>	hmm ... working from two different angles
19:45	<aliguori>	ok, and you're familiar all of the existing perf monitor stuff
19:45	<yorkedork>	from my perspective, the load/decision making is already there, but the framework to coordinate frequency/voltage scaling and performance information is not
19:46	<yorkedork>	xenprof
19:46	<yorkedork>	paper out of HP last year
19:46	<aliguori>	yeah
19:46	<yorkedork>	was what i have been focusing on
19:46	<aliguori>	take a look at the slides from the summit
19:46	<aliguori>	there were three talks on performance monitoring in xen
19:46	<aliguori>	i reckon xenoprof will meet your needs though
19:47	<yorkedork>	(only hopped on the bandwagon this semester)
19:47	<yorkedork>	after reading the paper, i was convinces
19:47	<yorkedork>	*convinced
19:47	<yorkedork>	would you consider a framework i have?
19:47	<aliguori>	yorkedork, you'd have to present it to xen-devel
19:47	<yorkedork>	(and let me know if you think it may be feasible/reasonable)?
19:47	<yorkedork>	ah ... k
19:48	<aliguori>	yorkedork, send it to xen-devel and i'll make sure to look at it
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19:54	<yorkedork>	aliguori: thank you for the advice/direction
19:55	<aliguori>	np
20:04	<yorkedork>	In your opinion, how far along is the AMD HVM stuff really? (looking at overview slides now)
20:06	<yorkedork>	(ack sorry, again, i'll just stick to the dev mailing list embarassed)
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20:28	<aliguori>	yorkedork, hvm (in general) is pretty good. can run windows and linux reasonably well. performance numbers haven't been put out yet for vt (intel) so I can't comment on specifics. amd hardware hasn't been released yet so, obviously, there aren't any numbers available yet for them
20:29	[~]	aliguori reboots to do some xen testing, bbiab
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21:08	<knewt>	hmm. i should probably stop trying to optimize this bit of code for now. it's just that I like the challenge. i've managed to pull it down from an avg time of 7.4ms to 6.83ms g
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---	Log	closed Mon Jan 23 00:01:00 2006