[libvirt-users] Is libvirt supported on Citrix Xenserver?

Tue Jul 19 08:12:22 UTC 2011

Hi,
 I was finally able to connect to the xenapi hypervisor using virsh of libvirt 0.9.2.  However, once I connect to virsh and give a 'quit' command I get  "* glibc detected *** virsh: double free or corruption (fasttop):". Please find below the actual memory dump.

Note: I have disabled the SSL certificate verification in xenapi_driver.c by setting curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0) & curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0).

[root at sharmila libvirt-0.9.2]# virsh -c "xenapi://localhost"
Enter username for localhost: root
Enter root's password for localhost: 
Welcome to virsh, the virtualization interactive terminal.

Type:  'help' for help with commands
       'quit' to quit

virsh # list --all
 Id Name                 State
----------------------------------
  0 Control domain on host: sharmila running
  - Control domain on host: sharmila running
  - XenServer SDK 5.6.100-47101p import shut off

virsh # quit

*** glibc detected *** virsh: double free or corruption (fasttop): 0x09fcc370 ***
======= Backtrace: =========
/lib/libc.so.6[0xb6fc56c5]
/lib/libc.so.6(cfree+0x59)[0xb6fc5b09]
/usr/local/lib/libvirt.so.0(virFree+0x42)[0xb760d712]
/usr/local/lib/libvirt.so.0[0xb777031d]
/usr/local/lib/libvirt.so.0[0xb776ec10]
/usr/local/lib/libvirt.so.0[0xb7676017]
/usr/local/lib/libvirt.so.0(virUnrefConnect+0x128)[0xb7677888]
/usr/local/lib/libvirt.so.0(virConnectClose+0xda)[0xb769ad4a]
virsh[0x8065c73]
virsh[0x806672f]
/lib/libc.so.6(__libc_start_main+0xdc)[0xb6f71e9c]
virsh[0x804e0f1]
======= Memory map: ========
08048000-08079000 r-xp 00000000 08:01 378273     /usr/local/bin/virsh
08079000-0807a000 rw-p 00031000 08:01 378273     /usr/local/bin/virsh
09fa1000-0a060000 rw-p 00000000 00:00 0          [heap]
b6b61000-b6b6c000 r-xp 00000000 08:01 182153     /lib/libgcc_s-4.1.2-20080825.so.1
b6b6c000-b6b6d000 rw-p 0000a000 08:01 182153     /lib/libgcc_s-4.1.2-20080825.so.1
b6b6d000-b6b77000 r-xp 00000000 08:01 181027     /lib/libnss_files-2.5.so
b6b77000-b6b78000 r--p 00009000 08:01 181027     /lib/libnss_files-2.5.so
b6b78000-b6b79000 rw-p 0000a000 08:01 181027     /lib/libnss_files-2.5.so
b6b81000-b6b83000 rw-p 00000000 00:00 0 
b6b83000-b6d83000 r--p 00000000 08:01 447132     /usr/lib/locale/locale-archive
b6d83000-b6d86000 rw-p 00000000 00:00 0 
b6d86000-b6d88000 r-xp 00000000 08:01 180820     /lib/libkeyutils-1.2.so
b6d88000-b6d89000 rw-p 00001000 08:01 180820     /lib/libkeyutils-1.2.so
b6d89000-b6d91000 r-xp 00000000 08:01 377484     /usr/lib/libkrb5support.so.0.1
b6d91000-b6d92000 rw-p 00007000 08:01 377484     /usr/lib/libkrb5support.so.0.1
b6d92000-b6d99000 r-xp 00000000 08:01 182148     /lib/librt-2.5.so
b6d99000-b6d9a000 r--p 00007000 08:01 182148     /lib/librt-2.5.so
b6d9a000-b6d9b000 rw-p 00008000 08:01 182148     /lib/librt-2.5.so
b6d9b000-b6dab000 r-xp 00000000 08:01 180816     /lib/libresolv-2.5.so
b6dab000-b6dac000 r--p 0000f000 08:01 180816     /lib/libresolv-2.5.so
b6dac000-b6dad000 rw-p 00010000 08:01 180816     /lib/libresolv-2.5.so
b6dad000-b6daf000 rw-p 00000000 00:00 0 
b6daf000-b6ddf000 r-xp 00000000 08:01 378111     /usr/lib/libidn.so.11.5.19
b6ddf000-b6de0000 rw-p 0002f000 08:01 378111     /usr/lib/libidn.so.11.5.19
b6de0000-b6de1000 rw-p 00000000 00:00 0 
b6de1000-b6de3000 r-xp 00000000 08:01 180823     /lib/libcom_err.so.2.1
b6de3000-b6de4000 rw-p 00001000 08:01 180823     /lib/libcom_err.so.2.1
b6de4000-b6e0a000 r-xp 00000000 08:01 378185     /usr/lib/libk5crypto.so.3.1
b6e0a000-b6e0b000 rw-p 00025000 08:01 378185     /usr/lib/libk5crypto.so.3.1
b6e0b000-b6e9f000 r-xp 00000000 08:01 378198     /usr/lib/libkrb5.so.3.3
b6e9f000-b6ea2000 rw-p 00093000 08:01 378198     /usr/lib/libkrb5.so.3.3
b6ea2000-b6ece000 r-xp 00000000 08:01 378160     /usr/lib/libgssapi_krb5.so.2.2
b6ece000-b6ecf000 rw-p 0002c000 08:01 378160     /usr/lib/libgssapi_krb5.so.2.2
b6ecf000-b6ed2000 r-xp 00000000 08:01 377492     /usr/lib/libgpg-error.so.0.3.0
b6ed2000-b6ed3000 rw-p 00002000 08:01 377492     /usr/lib/libgpg-error.so.0.3.0
b6ed3000-b6ed4000 rw-p 00000000 00:00 0 
b6ed4000-b6f0f000 r-xp 00000000 08:01 182149     /lib/libsepol.so.1
b6f0f000-b6f10000 rw-p 0003b000 08:01 182149     /lib/libsepol.so.1
b6f10000-b6f1a000 rw-p 00000000 00:00 0 
b6f1a000-b6f5a000 r-xp 00000000 08:01 378242     /usr/local/lib/libcurl.so.4.1.0
b6f5a000-b6f5b000 rw-p 00040000 08:01 378242     /usr/local/lib/libcurl.so.4.1.0
b6f5b000-b6f5c000 rw-p 00000000 00:00 0 
b6f5c000-b70af000 r-xp 00000000 08:01 180994     /lib/libc-2.5.so
b70af000-b70b1000 r--p 00153000 08:01 180994     /lib/libc-2.5.so
b70b1000-b70b2000 rw-p 00155000 08:01 180994     /lib/libc-2.5.so
b70b2000-b70b5000 rw-p 00000000 00:00 0 
b70b5000-b70b8000 r-xp 00000000 08:01 180979     /lib/libdl-2.5.so
b70b8000-b70b9000 r--p 00002000 08:01 180979     /lib/libdl-2.5.so
b70b9000-b70ba000 rw-p 00003000 08:01 180979     /lib/libdl-2.5.so
b70ba000-b70e1000 r-xp 00000000 08:01 182017     /lib/libm-2.5.so
b70e1000-b70e2000 r--p 00026000 08:01 182017     /lib/libm-2.5.so
b70e2000-b70e3000 rw-p 00027000 08:01 182017     /lib/libm-2.5.so
b70e3000-b70e4000 rw-p 00000000 00:00 0 
b70e4000-b70f6000 r-xp 00000000 08:01 378165     /usr/lib/libz.so.1.2.3
b70f6000-b70f7000 rw-p 00011000 08:01 378165     /usr/lib/libz.so.1.2.3
b70f7000-b7223000 r-xp 00000000 08:01 378174     /usr/lib/libxml2.so.2.6.26
b7223000-b7228000 rw-p 0012c000 08:01 378174     /usr/lib/libxml2.so.2.6.26
b7228000-b7229000 rw-p 00000000 00:00 0 
b7229000-b723e000 r-xp 00000000 08:01 181033     /lib/libpthread-2.5.so
b723e000-b723f000 r--p 00015000 08:01 181033     /lib/libpthread-2.5.so
b723f000-b7240000 rw-p 00016000 08:01 181033     /lib/libpthread-2.5.so
b7240000-b7242000 rw-p 00000000 00:00 0 
b7242000-b7258000 r-xp 00000000 08:01 181005     /lib/libselinux.so.1
b7258000-b725a000 rw-p 00015000 08:01 181005     /lib/libselinux.so.1
b725a000-b7389000 r-xp 00000000 08:01 182129     /lib/libcrypto.so.0.9.8e
b7389000-b739c000 rw-p 0012e000 08:01 182129     /lib/libcrypto.so.0.9.8e
b739c000-b73a0000 rw-p 00000000 00:00 0 
b73a0000-b73e4000 r-xp 00000000 08:01 180822     /lib/libssl.so.0.9.8e
b73e4000-b73e8000 rw-p 00043000 08:01 180822     /lib/libssl.so.0.9.8e
b73e8000-b7419000 r-xp 00000000 08:01 383239     /usr/lib/libcurl.so.3.0.0
b7419000-b741a000 rw-p 00031000 08:01 383239     /usr/lib/libcurl.so.3.0.0
b741a000-b741b000 rw-p 00000000 00:00 0 
b741b000-b747b000 r-xp 00000000 08:01 378267     /usr/lib/libxenserver.so.1.3
b747b000-b747f000 rw-p 00060000 08:01 378267     /usr/lib/libxenserver.so.1.3
b747f000-b74a3000 r-xp 00000000 08:01 383129     /usr/lib/libssh2.so.1.0.1
b74a3000-b74a4000 rw-p 00024000 08:01 383129     /usr/lib/libssh2.so.1.0.1
b74a4000-b74a8000 r-xp 00000000 08:01 376977     /usr/lib/libxenstore.so.3.0.0
b74a8000-b74a9000 rw-p 00003000 08:01 376977     /usr/lib/libxenstore.so.3.0.0
b74a9000-b74ac000 rw-p 00000000 00:00 0 
b74ac000-b752a000 r-xp 00000000 08:01 378181     /usr/lib/libgcrypt.so.11.5.2
b752a000-b752d000 rw-p 0007d000 08:01 378181     /usr/lib/libgcrypt.so.11.5.2
b752d000-b75a6000 r-xp 00000000 08:01 380857     /usr/lib/libgnutls.so.13.0.6
b75a6000-b75ac000 rw-p 00078000 08:01 380857     /usr/lib/libgnutls.so.13.0.6
b75ac000-b75ad000 rw-p 00000000 00:00 0 
b75ad000-b75cc000 r-xp 00000000 08:01 180978     /lib/libdevmapper.so.1.02
b75cc000-b75ce000 rw-p 0001e000 08:01 180978     /lib/libdevmapper.so.1.02
b75cf000-b75d6000 r--s 00000000 08:01 412913     /usr/lib/gconv/gconv-modules.cache
b75d6000-b75d7000 r-xp 00000000 08:01 377141     /usr/local/lib/libvirt-qemu.so.0.9.2
b75d7000-b75d8000 rw-p 00000000 08:01 377141     /usr/local/lib/libvirt-qemu.so.0.9.2Aborted

 Moreover, Iam not able to start any VMs uisng xencenter after i have started using virsh. It says,  Error: Starting VM 'XenServer SDK 5.6.100-47101p import' - Internal error: another frontend device is already connected to this domain (frontend (domid=0 | kind=vbd | devid=51712); backend (domid=0 | kind=vbd | devid=51712)). Even a reboot of the machine didnt help.

Any pointers on the above 2 issues would be of great help.

Thanks in Advance!

Regards,
SharmilaFrom: "G Naresh Kumar"naresh.gadepalli at gmail.comSent: Sat, 16 Jul 2011 16:55:16 +0530To: Matthias Bolte matthias.bolte at googlemail.comCc: libvirt-users at redhat.comSubject: Re: [libvirt-users] Is libvirt supported on Citrix Xenserver?Hi Matthias, 
>

Sorry for the confusion.It was an edited one & hence thetypo. Below is the 
actual output:

# virsh -c xenapi://<myip>
Enter username for <myip>: root
Enter root's password for <myip>: 
error: authentication failed: (null)

I was not able to get anything in the Xen logs. Somehowfigured out to print 
the Xen error using the patch given at the link http://osdir.com/ml/libvir-
list/2011-06/msg00298.html. It prints"TRANSPORT_FAULT". Any pointers to this 
error would be much appreciated. Iam also trying to debugthis issue.

As per your suggestion,
I had used make rpm. But it requires xen-devel pacakge,which I was 
not able to get for Xen 3.4.2. Is there any way where I canuse the source 
package and build & install the library without using'make rpm' ? 

Thanks for all the help.
>
Regards
Naresh> 
On Thu, Jul 14, 2011 at 7:07 PM, Matthias Bolte <matthias.bolte at googlemail.com> wrote:> 
2011/7/14 G Naresh Kumar <naresh.gadepalli at gmail.com>:>> Hi Maththias,> 
> Thanks for the help. I finally was able to compile/install libvirt on>> xenserver.>>>> I tried compiling the libvirt 0.9.2 with xen api support. Was able to>> install it successfully. When I tried giving the virsh command, I got an>> ‘authentication failed’ error as shown below.>>>> # virsh -c xenapi://<my local ip>>> Enter username for <mylocalip>: root>>Here you entered root> 
>> Enter intel123's password for <my local ip>:>>but here it asks for intel123's, that's unexpected. Did you edit this>one before mailing it, or is there really this mismatch?>>> error: authentication failed: (null)>>Outputting (null) here is actually a bug. The only way this can happen>is when the login attempt fails but the XenServer doesn't provide an>error message. Maybe have a look at the XenServer logs to see if it>says something about a failed login attempt.> 
>> I also tried connecting to the local machine as below,>>>> virsh -c "xenapi:///">> error: authentication failed: Server name not in URI>> error: failed to connect to the hypervisor>>The XenAPI driver expects a server name. xenapi:/// _could_ be treated>as xenapi://localhost, but it's not implemented that way.> 
>> Also I am trying to install ruby-libvirt on xenserver, which looks like>> requires libvirt-devel package to be installed. How do I build it from the>> libvirt 0.9.2 source package.>>Running 'make rpm' should build an libvirt-devel RPM package for you.> 

>> Thanks,>>>> Naresh>>>> On Wed, Jun 15, 2011 at 8:19 PM, Matthias Bolte>> <matthias.bolte at googlemail.com> wrote:>>>>>> 2011/6/15 G Naresh Kumar <naresh.gadepalli at gmail.com>:>>> > Hi Maththias,>>> >>>> > Thanks a lot for your response!.>>> >>>> > Is there a specific version of libvirt from which xenserver support is>>> > added? I am getting the below error>>> >>>> > "error: invalid argument in libvirt was built without the 'xenapi'>>> > driver">>>>>> The means that your libvirt version is new enough and contains the>>> XenAPI driver but that it was disabled on configure time, probably>>> because the build server didn't have libxenserver installed and>>> libvirt's configure script automatically disabled the driver because>>> of a missing dependency.&g!
 t;>>>>> > I have installed libvirt from citrix yum repo.>>>>>> Then Citrix build libvirt without XenAPI support. As a long term>>> solution you could report to whom ever is responsible for that repo>>> and request to enabled XenAPI support in that libvirt package. As a>>> short term solution you could build libvirt from source yourself and>>> make sure to get the XenAPI driver enabled.>>>>>> > I am using Xenserver 5.5 with libvirt 0.8.2 and it does not seem to be>>> > working.>>>>>> According to http://libvirt.org/hvsupport.html and the error message>>> 0.8.2 is new enough.>>>>>> Matthias>>>>>> > Thanks,>>> >>>> > Naresh>>> >>>> > On Jun 15, 2011 7:03 PM, "Matthias Bolte">>> > <matthias.bolte at googlemail.com>>>> > wrote:>>&g!
 t; >> 2011/6/15 G Naresh Kumar <naresh.gadepalli at gmai!
 l.com>:>>> >>> Hi,>>> >>> Is libvirt supported on Citrix Xenserver. I have been searching for>>> >>> the>>> >>> same>>> >>> with little/no luck.>>> >>> If supported, can you point to some links/documents which can help me>>> >>> try>>> >>> out the same.>>> >>> Thanks,>>> >>> Naresh>>> >>>>> >> libvirt can use XenAPI via libxenserver [1]. That should allow you to>>> >> use libvirt with a Citrix XenServer. You can use virsh like this>>> >> assuming you have a libxenserver enabled libvirt:>>> >>>>> >> virsh -c xenapi://my-xen-server>>> >>>>> >> But it's true, there is no documentation about this on the libvirt>>> >> website>>> >> yet.>>> &gt!
 ;>>>> >> [1] http://community.citrix.com/display/xs/Download+SDKs>>> >>>>> >> -->>> >> Matthias Bolte>>> >> http://photron.blogspot.com>>> >>> -->> I was an atheist till I realized I am GOD>>>>--> 

Matthias Bolte>http://photron.blogspot.com>>>-- >I was an atheist till I realized I am GOD>_______________________________________________>libvirt-users mailing list>libvirt-users at redhat.com>https://www.redhat.com/mailman/listinfo/libvirt-users
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