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[libvirt] Patch to include arm variants in virsh capabilities
by C.J. Adams-Collier 01 Jul '09

01 Jul '09

Hey folks, I got an android and wanted to set up an armel debian vm to test out some code. I had to launch it directly with qemu-system-arm, though, since virsh didn't have an arm option to select. This is a patch against the debian version of the source after applying debian-specific changes. If you'd like a patch against mainline, I'd be willing to do that. http://karma.colliertech.org/~cjac/tmp/add-arm.patch Cheers, C.J.

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[libvirt] While connecting through xen+ssh, virConnectClose doesn't close the connection
by Alexandru Nedelcu 01 Jul '09

01 Jul '09

Hi, I'm trying to create a Perl script with Sys::Virt (perl bindings). I'm also using Virsh for testing / experimenting, so this is in no way related to my Perl script (I mentioned it because there might be a sollution that I could use / implement). When connecting to libvirtd using a xen+ssh// connection, it connects, libvirt commands are executing, but on virsh "quit" (or when my script terminates), the connection is blocked. It bothers me because my script doesn't terminate. While running with LIBVIRT_DEBUG=1 I get the following messages: 14:30:51.086: debug : virDomainFree:1893 : domain=0x8791ff8 14:30:51.086: debug : virUnrefDomain:367 : unref domain 0x8791ff8 malcolm 1 14:30:51.086: debug : virReleaseDomain:325 : release domain 0x8791ff8 malcolm 14:30:51.087: debug : virReleaseDomain:337 : unref connection 0x87308a0 3 14:30:51.087: debug : virDomainFree:1893 : domain=0x8791f28 14:30:51.087: debug : virUnrefDomain:367 : unref domain 0x8791f28 Domain-0 1 14:30:51.087: debug : virReleaseDomain:325 : release domain 0x8791f28 Domain-0 14:30:51.087: debug : virReleaseDomain:337 : unref connection 0x87308a0 2 14:30:51.087: debug : virConnectClose:1203 : conn=0x87308a0 14:30:51.087: debug : call:6947 : Doing call 2 (nil) 14:30:51.087: debug : call:7017 : We have the buck 2 0x8796f68 0x8796f68 14:30:51.090: debug : processCallRecvLen:6605 : Got length, now need 28 total (24 more) 14:30:51.090: debug : processCalls:6873 : Giving up the buck 2 0x8796f68 (nil) 14:30:51.090: debug : call:7048 : All done with our call 2 (nil) 0x8796f68 Is this normal? Thanks,

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[libvirt] PATCH : Opennebula, adding xen i686 domain capability and updating some error messages
by "Abel Míguez Rodríguez" 01 Jul '09

01 Jul '09

Hi, this patch uses "OPERATION_INVALID" error instead "OPERATION_FAILED" error where should be used, also adds a missing capability, defining Xen i686 domains. Thanks for the patches, --- one_driver.c.bak 2009-06-30 15:02:28.000000000 +0200 +++ one_driver.c 2009-06-30 15:02:29.000000000 +0200 @@ -505,7 +505,7 @@ static int oneDomainShutdown(virDomainPt ret= 0; goto return_point; } - oneError(dom->conn, dom, VIR_ERR_OPERATION_FAILED, + oneError(dom->conn, dom, VIR_ERR_OPERATION_INVALID, _("Wrong state to perform action")); goto return_point; } @@ -541,7 +541,7 @@ static int oneDomainDestroy(virDomainPtr if(c_oneCancel(vm->pid)) { /* VM not running, delete the instance at ONE DB */ if(c_oneFinalize(vm->pid)){ - oneError(dom->conn, dom, VIR_ERR_OPERATION_FAILED, + oneError(dom->conn, dom, VIR_ERR_OPERATION_INVALID, _("Wrong state to perform action")); goto return_point; } @@ -576,11 +576,11 @@ static int oneDomainSuspend(virDomainPtr ret=0; goto return_point; } - oneError(dom->conn, dom, VIR_ERR_OPERATION_FAILED, + oneError(dom->conn, dom, VIR_ERR_OPERATION_INVALID, _("Wrong state to perform action")); goto return_point; } - oneError(dom->conn,dom,VIR_ERR_OPERATION_FAILED, + oneError(dom->conn,dom,VIR_ERR_OPERATION_INVALID, _("domain is not running")); } else { oneError(dom->conn, dom, VIR_ERR_INVALID_DOMAIN, @@ -609,11 +609,11 @@ static int oneDomainResume(virDomainPtr ret=0; goto return_point; } - oneError(dom->conn, dom, VIR_ERR_OPERATION_FAILED, + oneError(dom->conn, dom, VIR_ERR_OPERATION_INVALID, _("Wrong state to perform action")); goto return_point; } - oneError(dom->conn,dom,VIR_ERR_OPERATION_FAILED, + oneError(dom->conn,dom,VIR_ERR_OPERATION_INVALID, _("domain is not paused ")); } else { oneError(dom->conn, dom, VIR_ERR_INVALID_DOMAIN, --- one_conf.c.bak 2009-06-30 15:01:06.000000000 +0200 +++ one_conf.c 2009-06-30 15:00:58.000000000 +0200 @@ -94,6 +94,27 @@ virCapsPtr oneCapsInit(void) { goto no_memory; } + if ((guest = virCapabilitiesAddGuest(caps, + "xen", + "i686", + 32, + NULL, + NULL, + 0, + NULL)) == NULL) + { + goto no_memory; + } + if (virCapabilitiesAddGuestDomain(guest, + "one", + NULL, + NULL, + 0, + NULL) == NULL) + { + goto no_memory; + } + return caps; Abel Miguez Rodriguez ---- Distributed System Architecture Group (http://dsa-research.org) GridWay, http://www.gridway.org OpenNEbula, http://www.opennebula.org

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[libvirt] [PATCH] logging: remove unused level 0
by Amy Griffis 01 Jul '09

01 Jul '09

Some more logging cleanup. Remove all references to log level 0, and replace with VIR_LOG_DEBUG where appropriate. Also change any hard numbers to the corresponding VirLogPriority and add VIR_LOG_DEFAULT for the starting log level. Signed-off-by: Amy Griffis <amy.griffis(a)hp.com --- docs/logging.html.in | 6 ++---- qemud/libvirtd.conf | 5 ++--- qemud/qemud.c | 11 ++++++----- src/logging.c | 10 +++++----- src/logging.h | 2 ++ 5 files changed, 17 insertions(+), 17 deletions(-) diff --git a/docs/logging.html.in b/docs/logging.html.in index 11ea68c..fcd100f 100644 --- a/docs/logging.html.in +++ b/docs/logging.html.in @@ -49,7 +49,6 @@ <ul> <li>log_level: accepts the following values: <ul> - <li>0: no logging at all</li> <li>4: only errors</li> <li>3: warnings and errors</li> <li>2: informations, warnings and errors</li> @@ -84,20 +83,19 @@ </ul> In all cases the x prefix is the minimal level, acting as a filter: <ul> - <li>0: everything</li> <li>1: DEBUG</li> <li>2: INFO</li> <li>3: WARNING</li> <li>4: ERROR</li> </ul> Multiple output can be defined , they just need to be separated by - spaces, e.g.: <code>"3:syslog:libvirtd 0:file:/tmp/libvirt.log"</code> + spaces, e.g.: <code>"3:syslog:libvirtd 1:file:/tmp/libvirt.log"</code> will log all warnings and errors to syslog under the libvirtd ident but also log everything debugging and informations included in the file <code>/tmp/libvirt.log</code> For example setting up the following: <pre>export LIBVIRT_DEBUG=1 -export LIBVIRT_LOG_OUTPUTS="0:file:virsh.log"</pre> +export LIBVIRT_LOG_OUTPUTS="1:file:virsh.log"</pre> and then running virsh will accumulate the logs in the <code>virsh.log</code> file in a way similar to: <pre>14:29:04.771: debug : virInitialize:278 : register drivers diff --git a/qemud/libvirtd.conf b/qemud/libvirtd.conf index 1fd5918..49de466 100644 --- a/qemud/libvirtd.conf +++ b/qemud/libvirtd.conf @@ -269,7 +269,7 @@ # Logging controls # -# Logging level: 0 none, 4 errors, 3 warnings, 2 informations, 1 debug +# Logging level: 4 errors, 3 warnings, 2 informations, 1 debug # basically 1 will log everything possible #log_level = 3 @@ -303,13 +303,12 @@ # x:file:file_path # output to a file, with the given filepath # In all case the x prefix is the minimal level, acting as a filter -# 0: everything # 1: DEBUG # 2: INFO # 3: WARNING # 4: ERROR # -# Multiple output can be defined , they just need to be separated by spaces. +# Multiple output can be defined, they just need to be separated by spaces. # e.g.: # log_outputs="3:syslog:libvirtd" # to log all warnings and errors to syslog under the libvirtd ident diff --git a/qemud/qemud.c b/qemud/qemud.c index b5e3665..da20aa9 100644 --- a/qemud/qemud.c +++ b/qemud/qemud.c @@ -128,7 +128,7 @@ static int sigwrite = -1; /* Signal handler pipe */ static int ipsock = 0; /* -l Listen for TCP/IP */ /* Defaults for logging */ -static int log_level = 3; +static int log_level = VIR_LOG_DEFAULT; static char *log_filters = NULL; static char *log_outputs = NULL; @@ -2499,15 +2499,16 @@ qemudSetLogging(virConfPtr conf, const char *filename) { log_outputs = strdup(debugEnv); } if (!log_outputs) { + char *tmp = NULL; if (godaemon) { - char *tmp = NULL; if (virAsprintf (&tmp, "%d:syslog:libvirtd", log_level) < 0) goto free_and_fail; - virLogParseOutputs (tmp); - VIR_FREE (tmp); } else { - virLogParseOutputs("0:stderr:libvirtd"); + if (virAsprintf(&tmp, "%d:stderr", log_level) < 0) + goto free_and_fail; } + virLogParseOutputs(tmp); + VIR_FREE(tmp); } else { virLogParseOutputs(log_outputs); } diff --git a/src/logging.c b/src/logging.c index fd1d5d4..d13ae0f 100644 --- a/src/logging.c +++ b/src/logging.c @@ -119,7 +119,7 @@ static int virLogNbOutputs = 0; /* * Default priorities */ -static virLogPriority virLogDefaultPriority = VIR_LOG_WARN; +static virLogPriority virLogDefaultPriority = VIR_LOG_DEFAULT; static int virLogResetFilters(void); static int virLogResetOutputs(void); @@ -174,7 +174,7 @@ int virLogStartup(void) { virLogLen = 0; virLogStart = 0; virLogEnd = 0; - virLogDefaultPriority = VIR_LOG_WARN; + virLogDefaultPriority = VIR_LOG_DEFAULT; virLogUnlock(); return(0); } @@ -196,7 +196,7 @@ int virLogReset(void) { virLogLen = 0; virLogStart = 0; virLogEnd = 0; - virLogDefaultPriority = VIR_LOG_WARN; + virLogDefaultPriority = VIR_LOG_DEFAULT; virLogUnlock(); return(0); } @@ -689,7 +689,7 @@ int virLogParseOutputs(const char *outputs) { virSkipSpaces(&cur); while (*cur != 0) { prio= virParseNumber(&cur); - if ((prio < 0) || (prio > 4)) + if ((prio < VIR_LOG_DEBUG) || (prio > VIR_LOG_ERROR)) return(-1); if (*cur != ':') return(-1); @@ -770,7 +770,7 @@ int virLogParseFilters(const char *filters) { virSkipSpaces(&cur); while (*cur != 0) { prio= virParseNumber(&cur); - if ((prio < 0) || (prio > 4)) + if ((prio < VIR_LOG_DEBUG) || (prio > VIR_LOG_ERROR)) return(-1); if (*cur != ':') return(-1); diff --git a/src/logging.h b/src/logging.h index d99bb31..0b9ae79 100644 --- a/src/logging.h +++ b/src/logging.h @@ -77,6 +77,8 @@ typedef enum { VIR_LOG_ERROR, } virLogPriority; +#define VIR_LOG_DEFAULT VIR_LOG_WARN + /** * virLogOutputFunc: * @category: the category for the message

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[libvirt] Upcoming 0.6.5 release and switching the main SCM engine (to git)
by Daniel Veillard 01 Jul '09

01 Jul '09

A couple of things I wanted to raise. - First we have a release 0.6.5 at the end of the week, so we are in bug fix mode, it would be good if people could make a round of testing of the latest CVS/git version or the snapshot at ftp://libvirt.org/libvirt/libvirt-cvs-snapshot.tar.gz The snapshot generation was proken in the previous months but I fixed it today. - Another point is that we use CVS as the SCM, that's historical, that's what I was used to when I created the project but clearly most people now use the git mirror (or mercurial) to generate their patches. I tried to assert how much git was prevalent, at least for patches embedded within the mail content a large majority are git generated: paphio:~/Mail -> tail -100000 libvir | grep "^diff" | wc -l 268 paphio:~/Mail -> tail -100000 libvir | grep "^diff" | grep -- '-git' | wc -l 182 that doesn't account mails which are attached and base64 encoded but I think it's reasonnable to conclude most of people sending patches generated them out of a git tree. CVS certainly show its age, too ! So my plan would be to switch out of CVS and make git the primary SCM, Jim Meyering is already maintaining the current git tree, so the plan would be to create a new main git tree on libvirt.org based on the existing git://git.et.redhat.com/libvirt.git tree, maybe fixing a couple of things in the process, and desactivate the CVS server after a couple of week grace period. I think once the decision is taken it's better to do it earlier than late, and I'm thinking that this could be done earlier next week if Jim schedule allows and there is no objection. That would allow to manage the set of patches for the following release only under git and not need an SCM transition in the course of preparing 0.6.6 (or 0.7.0). - Speaking of the following release, I'm shooting for a slightly smaller development cycle, in order to be able to push the next version in time for Fedora 12 Beta, this means a new release at the end of July, so only a bit more than a couple of weeks for pushing the changes, I really hope we will be able to include a first version of the ESX driver and Power Hyprvisor, if it's the case I think it will be worth bumping the release name to 0.7.0 . Feedback and opinions welcome, I hope git is not too uncontroversial :-) Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

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[libvirt] feature or bug?
by Gene Czarcinski 30 Jun '09

30 Jun '09

Yet another question. I am using the virt-manager GUI. When I begin to define a new guest and attempt to "browse" to specify where the iso image file is, the GUI dialog brings me up in my home directory. But, almost everything associated with libvirt is done as the root user. By default, why isn't the initial directory "/var/lib/libvirt/images"? Gene

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[libvirt] your patence is appreciated
by Gene Czarcinski 30 Jun '09

30 Jun '09

I really hate being a bit of a PITA with all of my question/comments, but I am just trying to use Fedora virtualization in a manner where I can reasonably manage the configuration. I suspect I am not the first ex-VMware user and I will not be the last such user who is trying to use Fedora virtualization in place of VMware. I am very familiar with how guests are "managed" with VMware. I want Fedora (and Linux) virtualization to be a good product. Your patience is appreciated! Gene

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[libvirt] need some help/asdive
by Gene Czarcinski 30 Jun '09

30 Jun '09

Background: I am a newbie to Linux Virtualization. However, I have been using Linux for a long time. After a short time with Slackware, I started with Red Hat Linux 2 and went on to 2.1, 3.0.3, 4, 4.2, 5, 5.2, ..., 8, 9. And then on to Fedora Core 1, 2, ... until I installed Fedora 11 about a month ago. I have also run VMware starting when it first appeared. Initially I used VMware to run Windows. These days I use it to run up to from 25 to 30 guests (between 1 and 5 at the same time) [yes, I have lots of system memory]. Besides a couple of Windows guests, I have some guests supporting both 32 bit (i386) and 64 bit (x86_64) architectures of older releases as well as alternatives such as CentOS -- I use these to build RPMs. Then there are the guests supporting other operating systems such as Solaris and *BSD. Finally, I have a set of test guest that I use for testing stuff which could destroy the operating system or which require a lot of re-booting. All of this in 25 to 30 guests. With Fedora 11, I started by trying VMware-server. Server 1.0.9 (which I used on Fedora 9) looks like much more work to get running ... more or less "a bridge too far". So, I tried server 2.0.2 ... but the client interface changed from a separate GUI application to a browser based interface: 1) this impacts my usage of the firefox browser; 2) it is a buggy implementation; and 3) it is a crappy interface which I do not like. So, I (finally) noticed that Linux in general and Fedora specifically has packages supporting running guests virtually ... so, lets change my "problem sets" and give this a try ... especially when I noticed that it could use the hardware support in my new AMD Phenom II 940 processor. Before getting into my specific questions/problem, let me describe how my systems are set up. First of all, I have a basic rule: "don't screw with a working system." Therefore, on each of my systems I have at least two root partitions defined -- one for the current (working) system and one for the next (new) system [these days it is actually a /boot partition with root being on a striped logical volume]. I also have a small (think minimal install) partition with Fedora to serve as a boot selector (using chainloader), as something to to define striped logical volumes, and to be there for "emergency" maintenance. Guys, this works for me and always doing fresh installs saves on other headaches. Implicit in the above is that I put all of my data and my /home into separate partitions or logical volumes. One of these are my VMware guest systems. Now VMware puts all of the files (configuration, disk image, etc.) associated a guest under a separate directory. Fedora virtualization does not do this and separation is something I need so that I can easily move to a new version of the operating system such as when Fedora 12 becomes available in November. Questions/problems: My first question: it appears to me that a guest is defined by two things -- a configuration file in /etc/libvirt/qemu and one or more disk images in /var/lib/libvirt/images ... is this it or are there other files I need to consider? My second question concerns the location of the disk images: what is the "best practical way" to move these out of the root partition? I have come up with these different approaches which could/may work: 1. change the "path" value in /etc/libvirt/storage/default.xml to point to a directory in a different partition. 2. Use a /etc/fstab entry to "bind mount" a directory in a separate partition onto /var/lib/libvirt/images 3. Just use an /etc/fstab entry to mount a partition on /var/lib/libvirt/images or, perhaps, on /var/lib/libvirt. [This could be done during system installation] OK, any comments on these?? I can live with changing some configuration files, I can live with copying guest configuration files between systems, I CANNOT live with the disk image files being put into the root partition. Before jumping "whole hog" into using Fedora Virtualization in place of VMware, I need to be able to live with the result. Figure 30 guest virtuals with 10GB of virtual disk each, that is 300GB. I have that space but not for every root partition on my system! Comment: It sure would be nice if Fedora Virtualization put all files related to a guest under a single directory the way VMware does. Comment: It sure would be nice if there was some system-wide configuration parameter that defined where virtualization files went. Right now, as a newbie, I am using the virt-manage GUI interface. I am studying the command-line programs to see what they offer me. So far, I like what I see in Fedora Virtualization but I need to address how things will be practically managed sooner rather than later. Any help appreciated. Gene

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[libvirt] PATCH: Remove unused Open Nebula code, fix potential missing NULL terminator
by Daniel P. Berrange 30 Jun '09

30 Jun '09

This patch removes a bunch of unused Open Nebula code which has a number of flaws. It also fixes handling of a strncpy() call to ensure there is a NULL terminator in the copied string. And finally it makes a couple of strings be 'const' since they're never changed Daniel Index: src/opennebula/one_client.c =================================================================== RCS file: /data/cvs/libvirt/src/opennebula/one_client.c,v retrieving revision 1.1 diff -u -p -r1.1 one_client.c --- src/opennebula/one_client.c 24 Jun 2009 17:32:56 -0000 1.1 +++ src/opennebula/one_client.c 30 Jun 2009 11:05:12 -0000 @@ -33,16 +33,9 @@ void c_oneStart() xmlrpc_client_init2(&one_client.env, XMLRPC_CLIENT_NO_FLAGS, "OpenNebula API Client", "1.2", NULL, 0); - one_client.error=0; - -#ifdef ONED_PORT - one_client.url=(char *)malloc(64); - snprintf(one_client.url, 63, "http://localhost:%d/RPC2", ONED_PORT); -#else - one_client.url=(char *)"http://localhost:2633/RPC2"; -#endif - - one_client.session=(char *)"one-session"; + one_client.error = 0; + one_client.url = "http://localhost:2633/RPC2"; + one_client.session = "one-session"; }; @@ -94,35 +87,6 @@ int c_oneMigrate(int vmid, int hid, int return c_oneReturnCode(resultP); } -int c_oneAllocate(char* template_file) -{ - int file; - int size; - int bytes_read; - char *file_text; - int return_code; - - file=open(template_file, O_RDONLY); - size=lseek(file, 0, SEEK_END); - lseek(file, 0, SEEK_SET); - - file_text=(char *)malloc(size+1); - bytes_read=read(file, file_text, size); - close(file); - - if(bytes_read==size) { - file_text[size]=0; - - return_code=c_oneAllocateTemplate(file_text); - free(file_text); - - return return_code; - } else { - free(file_text); - return -1; - } -} - int c_oneAllocateTemplate(char* vm_template) { xmlrpc_value *resultP; @@ -222,6 +186,7 @@ int c_oneVmInfo(int vmid, char* ret_info if( return_code ) { strncpy(ret_info, return_string, length-1); + ret_info[length-1] = '\0'; xmlrpc_DECREF(resultP); free(return_string); @@ -241,9 +206,6 @@ void c_oneFree() { xmlrpc_env_clean(&one_client.env); xmlrpc_client_cleanup(); -#ifdef ONE_PORT - free(one_client.url); -#endif } Index: src/opennebula/one_client.h =================================================================== RCS file: /data/cvs/libvirt/src/opennebula/one_client.h,v retrieving revision 1.1 diff -u -p -r1.1 one_client.h --- src/opennebula/one_client.h 24 Jun 2009 17:32:56 -0000 1.1 +++ src/opennebula/one_client.h 30 Jun 2009 11:05:12 -0000 @@ -24,8 +24,8 @@ struct _oneClient { xmlrpc_env env; - char *url; - char *session; + const char *url; + const char *session; char *error; }; @@ -38,8 +38,6 @@ int c_oneDeploy(int vmid, int hid); int c_oneMigrate(int vmid, int hid, int flag); -int c_oneAllocate(char* template_file); - int c_oneAllocateTemplate(char* vm_template); int c_oneAction(int vmid,char* action); -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

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[libvirt] problem: deleting a guest
by Gene Czarcinski 30 Jun '09

30 Jun '09

I defined a new guest using the virt-manager GUI ... everything fine so far. I then decided that my definition was not correct (or I could be done with that guest) and could not find a way to delete the guest. OK, quit virt-manager, delete the configuration and disk-image files for the guest, restart libvirtd, and then start virt-manager again. The guest definition (according to virt-manager) was still there. I finnaly got rid of the definition by re-booting the system. THIS IS NOT SATISFACTORY! IMHO, I should be able to: 1. Define a new guest. 2. Delete the definition of a new guest but not the related configuration and disk-image files. 3. Delete the guest definition and the related configuration and disk image files but NOT and CD/DVD image files external to /var/lib/libvirt/images. 4. Import new guests which were created as clones, copied from another host, or convert created from something like VMware. Not it is certainly possible (or even likely) that I h\just do not understand how to do things yet. Or, this could be a bug. Or, this could be a lack of capabilities. Help appreciated in pointing me in the right direction. I will bugzilla where appropriate. Gene

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