similar to: How to debug XEN, in case where DomU/Dom0 gets unresponsive?

Displaying 20 results from an estimated 10000 matches similar to: "How to debug XEN, in case where DomU/Dom0 gets unresponsive?"

2008 Aug 14
6
xenconsoled needs restart after long dom0 uptime otherwise domU console output hangs and domU doesn''t come up
Hello list! I''ve noticed this problem a couple of times now.. so I''m wondering if it''s a known bug? Symptoms: After "long" dom0 uptime (174 days when it happened now, was something similar on previous times too) cannot start new pv domUs anymore.. pygrub runs and boots the kernel, but kernel newer gets to actually running initrd and the console output
2007 Jan 10
1
"''Invalid kernel'', ''xc_dom_find_loader: no loader found\n" with new vanilla 2.6.23-rc8
Hey folks, this is my first contact to XEN-users list. So please be patient if I missed something. I''ve searched a lot before writing this email. My problem: I do have a non-VT/Pacifica box (an old IBM Laptop). There I''ve got already Xen installed (Dom0, 2.6.18-xen0). Now I''ve tried to use the newest vanilla kernel from Kernel.org (at this time: 2.6.23-rc8). As commonly
2011 Feb 08
8
XEN 4.0.2-rc2 - using OCAML xenstored -- xend not starting?
Hi All, I just tried a new installation of Ubuntu 10.04 (64bit) + Xen and am having some trouble starting XEN. I am using the latest mercurial checkout (4.0.2-rc2) and the only change I made was to Config.mk to enable building the OCAML version of xenstored. " CONFIG_OCAML_XENSTORED ?= y". I am using the same kernel I built earlier for a similar Ubuntu 10.04-64bit / Xen 4.0.0
2007 Nov 27
1
build error with current (changeset 16475) xen-unstable tree
I do recieve this error when building xen-unstable tree. gcc -O2 -fomit-frame-pointer -m32 -march=i686 -DNDEBUG -fno-strict-aliasing -std=gnu99 -Wall -Wstrict-prototypes -Wno-unused-value -Wdeclaration-after-statement -DVMXASSIST -nostdinc -fno-builtin -fno-common -iwithprefix include -Werror -Wno-pointer-arith -pipe -I/home/xen-unstable.hg/xen/include
2008 Aug 13
1
Cannot start xen domUs anymore, domUs hang on kernel startup, happens after a long dom0 uptime
Hello! I've noticed this problem two times now.. last time I fixed it by rebooting the (centos 5.1 x86 32b) xen host/dom0. Symptoms: - Already running domUs (debian 2.6.18-6-xen-686 32b PAE) continue running and working OK - Cannot start new domUs (debian 2.6.18-6-xen-686).. kernel bootup just hangs before running initrd. Same domU with the exact same xen domU cfgfile worked earlier.
2008 Oct 10
4
xenconsole: Could not open tty `/dev/pts/5'': No such file or directory
Hi, i''m running a two dom0 nodes cluster for HA, and xen domUs running on top, currently it handles 5 domUs. The issue is that there''s a domU that can only run on one node, it''s not possible to start it on the other one. I get a ''b'' status and can''t access the console. Other domUs can start in either node and I can access their console without
2009 Mar 02
2
Bug#517863: Make logging of guest console output in dom0 via xenconsoled configurable
Package: xen-utils-3.2-1 Version: 3.2.1-2 Severity: wishlist Hi, this morning I spend some time to find out how to log console output of Xen guest domains into a file in dom0. I ended up using a quick 'n dirty solution: mario:/usr/lib/xen-3.2-1/bin 0-# diff -u xend.orig xend --- xend.orig 2009-03-02 16:49:49.000000000 +0100 +++ xend 2009-03-02 16:16:03.000000000 +0100 @@ -100,7 +100,8 @@
2007 Apr 18
3
Grant Tables between dom0 and domU?
Hi All, The interface manual says - grant tables provide a generic mechanism sharing between domains. Subsequent lines suggest mechanism sharing between only unpriviliged domains. Can grant tables be used for this capability based shared memory communication between dom0 and domUs? Thanks ~psr -- pradeep singh rautela "proud to be a TUXedo, BSDemons you are a little late" - me
2011 Oct 06
6
reg dom0 console
Hello All, After a few months of hiatus, we have resumed working on mips port of Xen. We are at the point of booting dom0 userland (init process and its children). The init process gets spawned and in turn forks off processes to run commands in /etc/rc.d/init.d/rcS. However, the getty process does not seem to run subsequently and hence the login prompt is not displayed. Dom 0 does not use the
2012 Dec 06
23
1000 Domains: Not able to access Domu via xm console from Dom0
Hi all, I am running Xen 4.1.2 with ubuntu Dom0. I have essentially got 1000 Modified Mini-OS DomU''s running at the same time. When i try and access the 1000th domain console: xm console DOM1000 xenconsole: could not read tty from store: No such file or directory The domain is alive and running according to xentop, and has been for some time. I can successfully access the first 338
2012 Dec 06
23
1000 Domains: Not able to access Domu via xm console from Dom0
Hi all, I am running Xen 4.1.2 with ubuntu Dom0. I have essentially got 1000 Modified Mini-OS DomU''s running at the same time. When i try and access the 1000th domain console: xm console DOM1000 xenconsole: could not read tty from store: No such file or directory The domain is alive and running according to xentop, and has been for some time. I can successfully access the first 338
2015 Jun 19
1
CentOS 6 domU console issue
Howdy, I'm having an issue with the console for CentOS 6 domUs. When I boot the domU I can see the console just fine. After grub has made its selection I get these errors: xenconsole: Could not open tty `': No such file or directory libxl: error: libxl_exec.c:118:libxl_report_child_exitstatus: console child [0] exited with error status 2 After that the boot process continues fine and
2013 Oct 08
10
xl console regression on xen-unstable
I''m unable to start xl console on latest xen-unstable (build with commit 8e0da8c07f4f80e14314977a11f738bd74a5b62b). > xl -vvv console sid > xenconsole: Could not read tty from store: No such file or directory I also tried "xl create -c", and it shows console from pygrub but when the "xl create" reaches the end I got the same error: > xenconsole: Could not
2010 Mar 02
3
Very unresponsive, sometimes stalling domU (5.4, x86_64)
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi list, please forgive cross posting, but I cannot specify the problem enough to say whether list it fits perfectly, so I'll ask on both. I have some machines based with following specs (see at the end of the email). They run CentOS 5.4 x86_64 with the latest patches applied, Xen-enabled and should host one or more domUs. I put the domUs'
2010 Mar 02
3
Very unresponsive, sometimes stalling domU (5.4, x86_64)
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi list, please forgive cross posting, but I cannot specify the problem enough to say whether list it fits perfectly, so I'll ask on both. I have some machines based with following specs (see at the end of the email). They run CentOS 5.4 x86_64 with the latest patches applied, Xen-enabled and should host one or more domUs. I put the domUs'
2011 Oct 28
2
Bug#646917: [Virtual-pkg-base-maintainers] Bug#646917: base: Debian gets unresponsive on higher IO load - BUG: soft lockup - CPU#0 stuck for 61s
reassign 646917 xen thanks -- .''`. Sell Crazy Someplace Else. We're all stocked up here : :' : `. `' `- Proudly running Debian GNU/Linux
2011 Apr 12
0
samba active directory question
We are migrating to 2008 Active Directory and in making changed to smb.conf and krb5.conf and restarting smb services I get below error in the winbindd.log: Winbind won't start [2011/04/07 15:03:09, 1] nsswitch/winbindd.c:main(979) winbindd version 3.0.22-13.16-SUSE-SLES10 started. Copyright The Samba Team 2000-2004 [2011/04/07 15:03:09, 0]
2007 May 03
5
Dom0 versus DomU and sata DVD drives
I have couple question about using Xen in the "real" world. My test box is a Dell Optiplex 745 with a Core 2 processor and 4 G of RAM. I am using 64 bit Centos 5 with Xen 3.03. Right now I have it set up so Dom0 is my working domain and I add other DomU for whatever tests i need to do. From what I''ve read here, this is not the best way to do things. So my first question is,
2008 Dec 04
1
xenconsole not working
Hello all, Today after a reboot of my server, I encountered the following error: > # xm console hackbloc > xenconsole: Could not read tty from store: No such file or directory I have not changed anything and have never run into this problem before. I have no idea what to do here, I mounted the image and checked that /dev/tty* were still there and they are. xm show lists the server as
2012 Feb 22
10
xen-unstable: Qemu upstream domUs not start on Wheezy
Dom0 is Wheezy 64 bit with kernel 3.2.0-1-amd64 version 3.2.4-1, xen from xen-unstable.hg changeset 24858:a88ba599add1 plus these patch for not fail build: http://xen.1045712.n5.nabble.com/PATCH-0-of-2-rename-libxl-yajl-gen-alloc-td5469362.html And also this change for lib patch modified with multiarch support: vi config/StdGNU.mk LIBLEAFDIR_x86_64 ?= lib DomUs PV working, domUs with