similar to: How to debug a kernel module in domain 0?

Hi, gdbserver-xen coredump after i step through a few lines of code. build dom0 with debug_domu. Enable debuginfo and frame pointer for dom U and attach the domu with gdbserver . In gdb put breakpoint at say sys_open and after going through few lines of code gdbserver-xen coredumps. The resulting core file has the below stack $gdb /usr/local/bin/gdbserver-xen ./core GNU gdb 6.3-debian

I am trying to dump calling stack in Xen in my codes instead of using kgdb like tools. oprofile seems to be one possibility. While oprofile is already included in kernel 2.6.11, I don''t see this option when I do "make ARCH=xen menuconfig". Actually I always see the call stack dump after I crash the kernel. So I think there are some codes in kernel that can dump the stack

I''ve followed the instructions in tools/debugger/gdb/README for building and using gdbserver-xen. While playing around with debugging a running guest or dissecting a core file, I''ve discovered that using it with a 32-bit PV domU fails but it works fine on the same guest if it''s booted with a 64-bit kernel. Is this a known limitation, or am I doing something incorrectly?

I run a centos6.2 guest VM in xen4.1.2, the id of centos-domU is 22. The info of dom0 is: 2.6.32-131.21.1.el6.xendom0.x86_64 #1 SMP Tue Dec 13 18:09:29 EST 2011 x86_64 x86_64 x86_64 GNU/Linux Centos-domU: 2.6.32-220.7.1.el6.x86_64 #1 SMP Wed Mar 7 00:52:02 GMT 2012 x86_64 x86_64 x86_64 GNU/Linux At dom0, I went like this: [malei@xentest-4-1 Tue Apr 30 ~]$ sudo gdbsx -a 22 64 9999 Listening on

Hello, I need to test a linux device driver. I am wondering whether it''s possible to run the kernel with the new driver on hvmloader? Is it possible to run gdb/gdbserver-xen against? Has anyone done this? Any pointer will be greatly appreciated! Thanks, Test. --------------------------------- Never miss an email again! Yahoo! Toolbar alerts you the instant new Mail

>This is pretty surprising. When a domU is actually running, dom0 isn''t >really involved (other than for IO), so its surprising grsec makes a >difference. >Do you get any console output from the guest before it crashes? I''m >wandering if its actually been built incorrectly by the domain builder >running in dom0. I don''t get any output from the guest

Hi, I am trying to export a memory page of dom0 to a domU in readonly mode. In dom0, I grant access permission to that domU. In domU, I did HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, map, res->nr_pages); All these functions returned successfully. But when I tried to access data in the mapped memory page, all data I got is 0. Is there any restriction that preventing dom0 pages from

Processing commands for control at bugs.debian.org: > reassign 442380 xen-utils-3.2-1 Bug#442380: xen-utils-3.1-1: reenabled blktap support unusable Warning: Unknown package 'xen-utils-3.1-1' Bug reassigned from package `xen-utils-3.1-1' to `xen-utils-3.2-1'. > reassign 445243 xen-utils-3.2-1 Bug#445243: xen-utils-3.1: qemu-dm should be built with alsa support to avoid

On 3/7/19 10:30 AM, Akemi Yagi wrote: > On Thu, Mar 7, 2019 at 9:42 AM George Dunlap <dunlapg at umich.edu> wrote: >> >> Hey all, >> >> We've been on 4.9 for some time now, and while it's still supported, I >> think it's time to start thinking about upgrading, and I'd like input >> from the community about which version to move up to.

Processing commands for control at bugs.debian.org: > close 396556 Bug #396556 [src:xen] Please build gdbserver-xen in the xen-utils package Marked Bug as done > forcemerge 446114 396556 Bug #446114 {Done: Ian Campbell <ijc at debian.org>} [src:xen] xen-utils-3.1-1: build gdbserver Bug #396556 {Done: Ian Campbell <ijc at debian.org>} [src:xen] Please build gdbserver-xen in the

On 12/19/2014 03:52 PM, Dave Stevens wrote: > what you say makes sense, but leaves me with two problems - what to do > and how did this happen? You never mentioned if this is for a dom0 or domu, if it's a domu is it a pv or hvm domain and does it use pvgrub, pygrub or does it boot directly to a kernel on the dom0? Also paste the output of this command from the affected domain: rpm -q

On Fri, 2014-12-19 at 16:21 +1300, Peter wrote: > On 12/19/2014 03:52 PM, Dave Stevens wrote: > > what you say makes sense, but leaves me with two problems - what to do > > and how did this happen? > > You never mentioned if this is for a dom0 or domu, if it's a domu is it > a pv or hvm domain and does it use pvgrub, pygrub or does it boot > directly to a kernel on

On Thu, Mar 7, 2019 at 1:42 PM Sarah Newman <srn at prgmr.com> wrote: > On 3/7/19 10:30 AM, Akemi Yagi wrote: > > On Thu, Mar 7, 2019 at 9:42 AM George Dunlap <dunlapg at umich.edu> wrote: > >> > >> Hey all, > >> > >> We've been on 4.9 for some time now, and while it's still supported, I > >> think it's time to start

Hey all, We've been on 4.9 for some time now, and while it's still supported, I think it's time to start thinking about upgrading, and I'd like input from the community about which version to move up to. 4.19 has been out for almost 5 months now. It will include PVH domU support, and PVH dom0 support in what _is believed_ to be the final form; so when the Virt SIG moves to a

Hello, Some time ago, I noticed that whilst I had upgraded to Xen 3.1 (kernel 2.6.18-xen), I''d forgot to upgrade the paravirt DomU .cfg kernels from 2.6.16-xen to reflect this. So, I upgraded the DomU kernels & ran into issues with mounting devices, and the ext3 module not being available. After a bit of faffing about, I managed to sort this out and load the ext3 module.

On Thu, Mar 7, 2019 at 9:42 AM George Dunlap <dunlapg at umich.edu> wrote: > > Hey all, > > We've been on 4.9 for some time now, and while it's still supported, I > think it's time to start thinking about upgrading, and I'd like input > from the community about which version to move up to. > > 4.19 has been out for almost 5 months now. It will include

I found this article on http://wiki.xensource.com/xenwiki/XenWindowsGplPv, but windbg display com8 reconnect forever. AND RxBytes always 0. Thank you Using the windows debugger under Xen Set up Dom0 1. Change/add the serial line to your Windows DomU config to say serial=''pty'' 2. Add a line to /etc/services that says ''windbg_domU 4440/tcp''.

Package: xen-utils-3.1-1 Version: 3.1.0-2 Severity: normal Hi, With HVM, Xen now has a way to gdb the kernel of a domain by running a gdbserver, available in tools/debugger/gdb. It would be useful to build it. Samuel -- System Information: Debian Release: lenny/sid APT prefers testing APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable'), (1,

[root at mems ~]# valgrind --leak-check=full --show-leak-kinds=all -v ping google.com ==3135== Memcheck, a memory error detector ==3135== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al. ==3135== Using Valgrind-3.10.0 and LibVEX; rerun with -h for copyright info ==3135== Command: ping google.com ==3135== --3135-- Valgrind options: --3135-- --leak-check=full --3135--

Hi Keir, Ian, Today if we stop the guest for debugging using the gdbserver and then continue with the guest execution the PIT finds that the time has gone ahead and it missed to inject so many timer ticks, and it tries to inject all of those one by one. So after the gdb continue command the guest just handles the timer interrupts for a long time before it can do anything else. This patch