similar to: Unable to switch input to xen from serial console

hi, I am wondering if anybody is doing Xen or Dom0 debugging with gdb here. If yes, could you show me the procedure of doing that? Thanks, Neo -- I would remember that if researchers were not ambitious probably today we haven''t the technology we are using! _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

Hi, I am trying to release domU pages from page_list and xenpage_list after domU shutdown while retaining the rest of the domain information. To achieve this in __domain_finalise_shutdown i call domain_relinquish_resources. This is failing to release pages from page_list for type PGT_l2_page_tables and crashing dom0. To be specific, while testing on mini-os i saw that when

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

Hi, I have been trying to debug Xen using kdb. However, I am unable to successfully boot dom0 after compiling and installing kdb. Software/hardware config: Base distribution - Debian Lenny (64-bit) on a Dell desktop (Optiplex 780) with a serial cable to another machine. Xen 4.0.1 (without kdb) works fine. Here are the steps I followed to set up Xen-unstable with kdb. 1. Cloned code from

Trying to migrate a 64bit PV guest with 64GB running medium to heavy load on xen 3.4.0, it is showing lot of soft lockups. The softlockups are causing dom0 reboot by the cluster FS. The hardware has 256GB and 32 CPUs. Looking into the hypervisor thru kdb, I see one cpu in sh_resync_all() while all other 31 appear spinning on the shadow_lock. I vaguely remember seeing some thread on this while

Hi all, Can some one tell me where phys_to_machine_mapping is being initialized for a domU having paging mode set to PG_translate. I see that, populate_physmap() after calling __alloc_xen_heap_pages only updates the machine_to_physmap but how is the mfn for the allocated page being updated/set for phys_to_machine_mapping?? I see that phys_to_machine_mapping is a #defined to RO_MPT_VIRT_START

Hi all, I am having confusion regarding the way a newly created domain is allocated vcpu. Initially during dom0 creation alloc_vcpu is called to create vcpu structs for all the available cpu''s and assigned to dom0. But its not the case for domU creation. 1. So how will dom0 relinquish/share vcpu to/with a newly created domU. Does this happen as part of the shared_info page mapping??

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

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.

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

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

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

I have to reinit a firewall that can only be done from its console port, and I do not have an XP system with Hyperterminal on it. So I went through the archive and learned that minicom could do the job for me. I installed it and went to configure it (minicom -s). I can set the speeds, but the challenge is selecting the serial device. I have a Serial-to-USB dongle, and when I connect it,

Hi, I was able to implement T122p one port PRI and was able to call out, but I am planning to use TE412p (includes echo cancellation) 4 port digital card (PRI), I wanted to know can asterisk support 3 four port PRI cards (12 PRI connections) with proper hardware like dual core quadcore processor and 8gb RAM in one server? Also I was planning to implement using 64 bit architecture with Asterisk:

After booting from a 10-alpha2 disk I am seeing "lock order reversal" messages show up from time to time. Current logs have 35 entries. The machine normally is running 9.1 from zfs root and I have setup a separate disk (eSATA case connected through backplane port to onboard SATA port) that I have installed 10-alpha amd64 onto a ufs partition to test port building with. I started by