similar to: Issues while using kdb to debug Xen

Hi, kdb: to debug xen hypervisor, could also debug guests gdbsx: to debug PV/HVM linux guests The tree is : http://xenbits.xensource.com/ext/debuggers.hg See README-dbg. You''ll need to setup serial access for kdb. Thanks, Mukesh > > Hi Dan, > > I''m currently using your version of ssplitd as it is. I haven''t tried > kdb. For some reason I

Is there any way (short of not patching it into the kernel) to turn KDB off on a given machine? There are some machines I do not want dropping into kdb when/if it oopses. Thanx, b.

Hi Guys, Thanks for the interest in the xen hypervisor debugger, prev known as kdb. Btw. I''m gonna rename it to xdb for xen-debugger or hdb for hypervisor debugger. KDB is confusing people with linux kdb debugger and I often get emails where people think they need to apply linux kdb patch also... Anyways, attaching patch that is cleaned up of my debug code that I accidentally left in

I asked this a few weeks ago but didn''t get a response, so at the risk of being a nag, I''ll abbreviate and restate. I know there are other Xen specific debuggers, but I want to know if there''s any reason why SGI''s kdb, http://oss.sgi.com/projects/kdb, should not be included in a dom0 pv-ops kernel? While the patches apply cleanly and build, the result is that

I admit I was scepticle of this suggestion - but it actually seems to have worked. COmpiling a straight GENERIC kernel with KDB and DDB included do seem to have made my irq22 interrupt storms go away. Certainly I have spent some time trying to provoke the problem and not managed to make it read it's ugly head again. The thing is though, this doen't make me particularly happy - as I am

Hi, I have downloaded the following files libao-0.6.0.tar.gz libogg-1.0beta4.tar.gz libvorbis-1.0beta4.tar.gz vorbis-tools-1.0beta4.tar.gz as said from the download section. But I'm at a loss to what do after that. I don't have much experience/knowledge in compiling etc, but I still want to try out ogg. (I downloaded the source coz I have an OpenBSD machine, and there was no

Hello, I am trying to execute virsh commands on a host but it is giving errors due to failure in acquiring lock. root at kvm01:~# virsh suspend blindone error: Failed to suspend domain blindone error: Timed out during operation: cannot acquire state change lock Any suggestions how can we figure out possible reasons. -- Jatin -------------- next part -------------- An HTML attachment was

Hi all, When i do ''xm dmesg'' the last statement says "*** Serial input -> DOM0 (type ''CTRL-a'' three times to switch input to Xen)" (i have no clue what''s that supposed to mean??) But when i press ctrl-a three times at the serial console, nothing happens. Iam using minicom to connect to the serial port of xen machine. Once xen

Hi, I am a Xen newbie and have been trying to get Xen-3.4.1 working on my Ubuntu Lucid (kernel version 2.6.32-21) system, using kernel 2.6.18.8 as dom0. In attempting this, I ran into the following issue. On booting into Xen, I get these errors: Mounting none on /dev failed. No such device. ... Gave up waiting for root device. ... Alert! Could not mount /dev/sda1 as root device. Dropping to a

Please give me some pointers... Thanks a lot!

There is a patch for xen linux 2.6.10 that enables kdb. It works with the xen 2.0.3 and xen-2.0-testing. (I intend to keep it current with 2.0-testing, but I can''t guarantee instant currency every time there are changes to the test branch.) The patch and a brief HOWTO are located at http://www.ncultra.org/xen/kdb/ kdb works with both privileged and unprivileged kernels. Mike --

Fix the polling section of the hvc driver to use the global "last_hvc" variable, rather than the ttys. With this change debugging a xen dom0 kernel is possible via the following kernel parameter: kgdboc=hvc0 Signed-off-by: Ben Guthro <Benjamin.Guthro@citrix.com> diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c index 2d691eb..3750e74 100644 ---

Hello All, I am running Linux 2.4.7-10, 2.4.18-4 and 2.4.19-pre9, I see the following oops quite often (mainly on 2.4.19-pre9 with kdb). All the kernels I use have the kdb patch installed. 1 kmem_cache_alloc (offset 0x125) get_unused_buffer_head journal_write_metadata_buffer journal_commit_transaction kjournald kernel_thread kmem_cache_alloc dis xchg %eax, (%ebx) cmp $0x5a2cf071, %eax (where

Hello, I have been trying to migrate a guest from one host to another. But it is showing this error: virsh --connect qemu+ssh://root at host1/system migrate --live --undefinesource testvm3 qemu+ssh://root at host2/system tcp://host2:48160 error: operation failed: failed to retrieve chardev info in qemu with 'info chardev' I have tried this command from the host1 also but it shows the

Hi, friends How to debug Xen? Sometimes, I am confused with sudden hardware restart or halt. I can not see any output to analyze the problems. Can you introduce some debug methods adopted in the Xen development? _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

I see the following with a FreeBSD 5.3 DomU on 2.0.7 Fatal trap 12: page fault while in kernel mode fault virtual address = 0xca7a0088 fault code = supervisor read, page not present instruction pointer = 0x819:0xc0183343 stack pointer = 0x821:0xca069d30 frame pointer = 0x821:0x0 code segment = base 0x235, limit 0x8485e7c3, type 0x9

Im intending use Ext3 file system in my web farm. Im using RedHat 6.2 (kernel 2.2.16-3) and Turbo Linux Cluster Server 6.0. I have NO SUCCESS in path my own kernel. I downloaded the following ext3 packages: ext3-0.0.2f.tar.gz (linux-2.2.16-3.kdb.diff , linux-2.2.16-3.ext3.diff ) e2fsprogs-1.20-0.WIP.i386.rpm e2fsprogs-1.20-0.WIP.src.rpm e2fsprogs-1.20-0ext3.i386.rpm

Hello, Now that kernel 2.2.20 is out with security fixes, I'd be interested in using it with ext3. The latest patch for 2.2.19, 0.0.7a, applies with some offset (both with and without kdb), and even compiles (without kdb), but I scarcely know what I am doing so haven't tried it yet. Could people in the know enlighten me on that point? I guess there is little chance for another ext3

hi guys i just partially upgrade centos 3.4 to centos 4(using apt-get) and im having a problem removing kdb 1.08-10.2, kbd 1.12-2 is already installed and im trying to remove kdb 1.08 through apt-get and rpm -e here's what happened when i use apt-get: # apt-get remove kbd#1.08-10.2 Reading Package Lists... Done Building Dependency Tree... Done The following packages will be REMOVED:

I previously wrote: > I have come across what appears to be a bug in __invalidate_buffers() > w.r.t. the change in ext3-0.0.6 using BH_JDirty instead of BH_Dirty > for buffers held in the journal. If invalidate_buffers() is called > on a device (LVM likes to do this a lot, for whatever reason), it yanks > JDirty buffers out from underneath the journal layer, and causes an > oops