similar to: 【Problem】 about using gdbsx to debug guest linux VM

Hi Mukesh, I was auditing uses of set_xen_guest_handle for correctness when I noticed that gdbsx (specifically tools/debugger/gdbsx/xg/xg_main.c) defines its own _domctl_hcall and associated helpers instead of using libxc. Is there any particular reason for that? Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

Hi all, In xen-4.1.2 src/tools/libxl/libxl_dm.c, there is a function called `libxl_build_device_model_args_old`, the func will build qemu-dm cmdline args according to the xl-formated configuration file specified by xl create domid: 2 -videoram option does not work with cirrus vga device model. Videoram set to 4M. Strip off blktap sub-type prefix to /home/malei/c2.delta.img (drv

Hi,everyone: As the subject says, why chinese characters are shown as '?' by using ls function? Did anyone encounter the same problem and does resolution exist? Looking forward to your reply. Thanks in advance. -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hmm... I don't know whats the real cause. Is it during boot of the HVM guest, or is the guest completely up and you are trying to set breakpoing? For immediate use, can you just rebuilt the kernel with module built in? I don't have a setup right now to debug/fix it, and am very busy with PVH and preparing for xen summit, so need some time to debug and fix it. thanks, mukesh PS: please

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

Package: xen-utils-4.4 Version: 4.4.1-6 Severity: normal Dear Maintainer, The xen-utils-4.4 package in jessie is missing the gdbsx binary. This is useful to have when one wishes to debug Xen domains, and complicated to obtain if one does not have it ready. The same package on at least Ubuntu 14.04.1 LTS does contain this binary, in /usr/lib/xen-4.4/bin. However, if you have no objections I

yujiageng734 wrote: > Hi, > > I am trying to use your gdbsx. But I don''t know how to make a 32bit > dom0 running on 64bit hypervisor. Can you explain this for me? I''m > extremely grateful to you. Hmm.. good question. I don''t know, it''s always done for me here. One option would be to just download OVM from edelivery.oracle.com,

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?

hi,all has anyone set the eflags.TF of vm? I want to introdeuce a VM into single-step by setting the eflags.TF of vm, then I disassemble the bytes at RIP to figure out what''s going on . I have set the trap flag ,but I didn''t achieve what I want. First, I only get hlt,mov, rdtsc, clts, in, out . Second, the VM always crash. does anyone have experience and give

Hi. I have following errors in my log file: Mar 22 05:33:11 xentest libvirtd: 05:33:11.518: error : failed Xen syscall topology cpuset syntax error Mar 22 05:33:21 xentest libvirtd: 05:33:21.418: error : failed Xen syscall topology cpuset syntax error Mar 22 05:33:41 xentest libvirtd: 05:33:41.274: error : failed Xen syscall topology cpuset syntax error Mar 22 05:33:41 xentest libvirtd:

Config.mk | 1 + tools/Makefile | 1 + tools/tests/Makefile | 20 ++++++++++++++++++++ 3 files changed, 22 insertions(+), 0 deletions(-) Build tests as part of the tools build. It is enabled with CONFIG_TESTS in Config.mk Currently disabled build of tests/regressions and tests/xen-access (in 32 bit mode) as they fail. Signed-off-by: Andres Lagar-Cavilla

Hi all, In xen-4.1.2/tools/libxl/xl_cmdimpl.c : create_domain(), it starts up a child daemon process waiting for the domain death, there are several lines echo the child pid as follows: 1592 if (child1) { /*it''s in the parent*/ 1593 printf("Daemon running with PID %d\n", child1); /**it''s in the child/ 1643

the contexts are as follows, looking forward to your reply, thanks [1]enviromention : xen3.4.2+CentOS-5.5 [2]config file: xp.hvm, as follows _s_name = 'xp-101' _s_vnc_display = 5310 _s_vm_id = 101 _s_vm_mac = '00:16:3e:eb:ca:65' _s_memory = 512 _s_allow_destroy = False _s_use_vnc = True # -*- mode: python; -*-

I dont know gentoo, but the package might be called iproute2. You might also need the bridge-utils. Regards Dominik Friedrich Nietzsche schrieb: > Thanks found the issue atleast, here is what I get: > > xentest scripts # which ip > which: no ip in >

Hi; Currently I am running xen 3.4.2 on one of my Centos servers , I want to upgrade to latest version of xen but I dont know if I should upgrade to latest branch of xen 3 or xen 4 ? is xen 4 backward compatible with xen 3 VMs ? does it provide any performance benefit compared to xen 3 ? What is your recommendation ? Regards

Hello, I''m interested in using the mem_event API (or it''s LibVMI wrapper), but I''m interested in capturing write events anywhere in a domU guest''s memory, _and_ not just once for each page write, but every time a page is being written to. To this end, I''ve looked at the xen-access.c example, where at first all the pages are being monitored:

Hi Ian/Stefano, So, I''m back to using pfn space from maxphysaddr below. Stefano, you suggested ballooning, but that would be just too slow. There are lot of pages to be mapped, 4k at a time during guest creation, and I am afraid ballooning and hypercalls to populate EPT will be pretty slow. OTOH, there is tons of address space available between max-physaddr and max pfn in dom0. Stefano,

I try to bring up xend but get this error in the xend-debug.log /etc/xen/scripts/network-bridge: line 62: ip: command not found Link veth0 is missing. This may be because you have reached the limit of the number of interfaces that the loopback driver supports. If the loopback driver is a module, you may raise this limit by passing it as a parameter (nloopbacks=<N>); if the driver is

Hi, the problem is as follows:(And then, others can't login mostly because of the os' busing and you can't do anything else.) [**@xentest ::三 12月 21::~]$ sudo xm list Name ID Mem VCPUs State Time(s) Domain-0 0 1748 2 r----- 29396.3 xp-101 1 256

Hi, all I have a number of machines that are out of sync with one another by virtue of having done a yum update after a base 6.2 install at different times (all were previous CentOS 5.3) Consequently, systems are a mix of 2.6.32-220.7.1, 2.6.32-220.13.1 or 2.6.32-220.17.1. So 2 questions: - Is it possible to perform a yum update (or another other kind of update), specifying installation