Mitch Kelly
2007-Dec-17 02:45 UTC
RE: [Xen-users] How to see a domU''s console (without a working networkconnection)?
xm list to get the name of it xm console NAMEHERE to attach its console> > > >---- Original Message ---- >From: richw@richw.org >To: xen-users@lists.xensource.com >Subject: RE: [Xen-users] How to see a domU''s console (without a >working networkconnection)? >Date: Sun, 16 Dec 2007 18:41:18 -0800 > >>Sorry if this is an elementary question, but . . . . >> >>Is there a way for me to see the console output from a domU without >>depending on the domU having a working network connection? >> >>I''m still trying to figure out why a domU simply is not reachable >via >>a network bridge. I''m hoping maybe being able to see what is going >on >>in the domU, via its console output, might help, but I''m worried >that >>the lack of a working network connection to the domU might make it >>difficult or impossible for me to see its console. >> >>-- >>Rich Wales === Palo Alto, CA, USA === >richw@richw.org >>http://www.richw.org === >http://en.wikipedia.org/wiki/User:Richwales >> >>_______________________________________________ >>Xen-users mailing list >>Xen-users@lists.xensource.com >>http://lists.xensource.com/xen-users >>_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Mitch Kelly wrote:> xm list to get the name of it > xm console NAMEHERE to attach its consoleThanks. When I did the above, I discovered that the console output had frozen at a particular point. Nothing more happened after that. I went and did other things for about FOUR HOURS, and when I returned and looked at the console output, there was still no further output. See the attached file. The last two lines of console output happened after I did an "xm shutdown" on the domU. Any ideas as to why my domU is hanging like this? What sorts of diagnostic measures should I try next? -- Rich Wales === Palo Alto, CA, USA === richw@richw.org http://www.richw.org === http://en.wikipedia.org/wiki/User:Richwales _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Stephan Seitz
2007-Dec-17 07:21 UTC
Re: [Xen-users] domU freezes solid after startup -- why?
Rich Wales schrieb:> Mitch Kelly wrote: > >> xm list to get the name of it >> xm console NAMEHERE to attach its console > > Thanks. > > When I did the above, I discovered that the console output had frozen > at a particular point. Nothing more happened after that. > > I went and did other things for about FOUR HOURS, and when I returned > and looked at the console output, there was still no further output. > > See the attached file. The last two lines of console output happened > after I did an "xm shutdown" on the domU. > > Any ideas as to why my domU is hanging like this? What sorts of > diagnostic measures should I try next?You posted already the solution: 107074.946701] xencons_init: Initializing xen vfb; pass xencons=tty to prevent this [107074.947127] Xen virtual console successfully installed as xvc0 add extra = ''xencons=tty'' to the domU config file.> > ------------------------------------------------------------------------ > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users-- Stephan Seitz Senior System Administrator *netz-haut* e.K. multimediale kommunikation zweierweg 22 97074 würzburg fon: +49 931 2876247 fax: +49 931 2876248 web: www.netz-haut.de <http://www.netz-haut.de/> registriergericht: amtsgericht würzburg, hra 5054 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Stephan Seitz wrote:> add extra = ''xencons=tty'' to the domU config file.Thanks. I tried this, but the domU still freezes up -- though it seems to be freezing at a different place now than it did previously. See the attached console output. This time, it froze on the third line from the end ("Setting the system clock.."); the last two lines of output happened after I did an "xm shutdown" on the domU. In case it matters, I''m trying to run Xen 3.1 on an Ubuntu 7.10 system (kernel = 2.6.22-14-xen). The hardware is an AMD Athlon XP 2700+ with 2 GB of RAM. The dom0 seems to run perfectly. -- Rich Wales === Palo Alto, CA, USA === richw@richw.org http://www.richw.org === http://en.wikipedia.org/wiki/User:Richwales _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Rich Wales
2007-Dec-20 01:17 UTC
[Xen-users] SOLVED: domU freezes solid after startup -- why?
Following up on my earlier posting:> See the attached console output. This time, it froze on the third line > from the end ("Setting the system clock.."); the last two lines of output > happened after I did an "xm shutdown" on the domU. > > In case it matters, I''m trying to run Xen 3.1 on an Ubuntu 7.10 system > (kernel = 2.6.22-14-xen). The hardware is an AMD Athlon XP 2700+ with > 2 GB of RAM. The dom0 seems to run perfectly.The domU was freezing up in /etc/rcS.d/S11hwclock.sh -- presumably while trying to run /sbin/hwclock. I mounted the domU''s disk, added HWCLOCKACCESS=no to /etc/default/rcS -- bypassing the clock setting code (presumably unnecessary, right?, since the domU''s clock is simply a reflection of the dom0''s clock?) -- and the domU comes up just fine now. -- Rich Wales === Palo Alto, CA, USA === richw@richw.org http://www.richw.org === http://en.wikipedia.org/wiki/User:Richwales _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Earlier, I wrote:> The domU was freezing up in /etc/rcS.d/S11hwclock.sh -- presumably > while trying to run /sbin/hwclock. I mounted the domU''s disk, added > HWCLOCKACCESS=no to /etc/default/rcS -- bypassing the clock setting > code (presumably unnecessary, right?, since the domU''s clock is > simply a reflection of the dom0''s clock?) -- and the domU comes up > just fine now.Well, almost. Two problems remain: (1) The startup of a domU stalls for about three minutes, apparently in the /etc/rcS.d/S11hwclock.sh script. I can get rid of this delay by making /sbin/hwclock non-executable (chmod 000). (2) My local time zone is not being set during startup -- the system thinks it should use UTC. "hwclock --hctosys" is supposed to set the kernel''s timezone value, but that isn''t happening because I set HWCLOCKACCESS=no, bypassing the "hwclock" calls in hwclock.sh. Any suggestions for setting the kernel''s timezone value to the local timezone in a domU without running "hwclock --hctosys"? -- Rich Wales === Palo Alto, CA, USA === richw@richw.org http://www.richw.org === http://en.wikipedia.org/wiki/User:Richwales _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi all, Sun has opened the openSolaris on x86. Xen announces to support Solaris. How about Xen-ia64 support to Solaris? Thanks! -Yuzhong _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Sun, Dec 23, 2007 at 04:34:16PM +0800, Yuzhong Sun wrote:> > Sun has opened the openSolaris on x86. Xen announces to support Solaris. How > about Xen-ia64 support to Solaris?The raw cpu-instructions are not modified by xen but go directly onto the cpu, so you still need the domU-system to support the architecture the dom0 runs on. So you need an (open)solaris-version compiled for IA64, havent yet heard of sun seeing a business-case there and pushing it. Christian _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Last week, I asked:> Any suggestions for setting the kernel''s timezone value to th > local timezone in a domU without running "hwclock --hctosys"?For the record, the answer (on my Ubuntu system) was to run: dpkg-reconfigure tzdata and go through the menu to select my desired time zone. -- Rich Wales === Palo Alto, CA, USA === richw@richw.org http://www.richw.org === http://en.wikipedia.org/wiki/User:Richwales _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users