7:20 a.m.
Hi all,
I'm using libvirt-php to manage a Hyper-V 2012 R2 host.
When trying to retrieve the active VMs using the function
libvirt_list_active_domains() I get an array with the correct amount of
items but with garbage instead of the domain names:
Array ( [0] => P’*µ [1] => +µ [2] => `„*µ [3] =>
°Ø*µ [4] => Є*µ [5] => `†*µ [6] => [7] => `†*µ
[8] => [9] => p +µ [10] => p"+µ [11] => P#+µ [12] => ß*µ )
On the other hand libvirt_list_inactive_domains() and
libvirt_list_domains() work as expected returning the right amount of
items and the domain names correctly:
libvirt_list_inactive_domains() output:
Array ( [0] => DCHOMELAB01 [1] => VMFCSW7 [2] => REMOTEAPP01 [3] =>
MPSSD01 [4] => CS16SVR )
Sofware versions:
OS: CentOS Linux release 7.2.1511 (Core)
Kernel: 3.10.0-327.28.2.el7.x86_64
PHP: 5.4.16-36.3
libvirt: 2.1.0
libvirt-php: 0.5.2
Node: Hyper-V 2012 R2
Thanks in advance for your replies.
Fer
8:58 a.m.
2016-09-07 14:20 GMT+02:00 Fernando Casas Schössow <casasfernando(a)hotmail.com>:
Hi all,
I'm using libvirt-php to manage a Hyper-V 2012 R2 host.
When trying to retrieve the active VMs using the function
libvirt_list_active_domains() I get an array with the correct amount of
items but with garbage instead of the domain names:
Array ( [0] => P’*µ [1] => +µ [2] => `„*µ [3] => °Ø*µ [4] => Є*µ [5]
=>
`†*µ [6] => [7] => `†*µ [8] => [9] => p +µ [10] => p"+µ [11] =>
P#+µ [12] =>
ß*µ )
On the other hand libvirt_list_inactive_domains() and libvirt_list_domains()
work as expected returning the right amount of items and the domain names
correctly:
libvirt_list_inactive_domains() output:
Array ( [0] => DCHOMELAB01 [1] => VMFCSW7 [2] => REMOTEAPP01 [3] => MPSSD01
[4] => CS16SVR )
The problem is here
http://libvirt.org/git/?p=libvirt-php.git;a=blob;f=src/libvirt-php.c;h=20...
libvirt_list_active_domains gets the domain name using
virDomainGetName, then frees the domain object using virDomainFree
(this also frees the domain name) and afterwards tries to use the
already freed domain name.
libvirt_list_active_domains needs to add the domian name to the result
list and then free the domain. For example, libvirt_list_domains does
it in the correct order.
--
Matthias Bolte
http://photron.blogspot.com
10:52 a.m.
Thanks for the tip Matthias.
I found some time to check the code and came up with this patch:
diff --git a/src/libvirt-php.c b/src/libvirt-php.c
index 2045c59..8e215f4 100644
--- a/src/libvirt-php.c
+++ b/src/libvirt-php.c
@@ -9105,17 +9105,21 @@ PHP_FUNCTION(libvirt_list_active_domains)
int count=-1;
int expectedcount=-1;
int *ids;
- int i;
- virDomainPtr domain = NULL;
const char *name;
+ int i, rv;
+ virDomainPtr domain=NULL;
GET_CONNECTION_FROM_ARGS("r",&zconn);
if ((expectedcount=virConnectNumOfDomains (conn->conn)) < 0)
RETURN_FALSE;
+ DPRINTF("%s: Found %d domains\n", PHPFUNC, expectedcount);
+
ids=(int *)emalloc(sizeof(int)*expectedcount);
count=virConnectListDomains (conn->conn,ids,expectedcount);
+ DPRINTF("%s: virConnectListDomains returned %d domains\n", PHPFUNC,
count);
+
if ((count != expectedcount) || (count<0))
{
efree (ids);
@@ -9126,21 +9130,26 @@ PHP_FUNCTION(libvirt_list_active_domains)
for (i=0;i<count;i++)
{
domain=virDomainLookupByID(conn->conn,ids[i]);
+ resource_change_counter(INT_RESOURCE_DOMAIN, conn->conn, domain, 1
TSRMLS_CC);
if (domain!=NULL)
{
name=virDomainGetName(domain);
-
- if (virDomainFree (domain))
- resource_change_counter(INT_RESOURCE_DOMAIN, conn->conn, domain, 0
TSRMLS_CC);
-
- if (name==NULL)
- {
- efree (ids);
- RETURN_FALSE;
+ if (name != NULL) {
+ DPRINTF("%s: Found running domain %s with ID = %d\n", PHPFUNC, name,
ids[i]);
+ VIRT_ADD_NEXT_INDEX_STRING(return_value, name);
}
-
- VIRT_ADD_NEXT_INDEX_STRING(return_value, name);
+ else
+ DPRINTF("%s: Cannot get ID for running domain %d\n", PHPFUNC, ids[i]);
}
+ rv = virDomainFree (domain);
+ if (rv != 0) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING,"virDomainFree failed with
%i on list_domain: %s",
+ rv, LIBVIRT_G (last_error));
+ }
+ else {
+ resource_change_counter(INT_RESOURCE_DOMAIN, conn->conn, domain, 0
TSRMLS_CC);
+ }
+ domain = NULL;
}
efree(ids);
}
Basically I took the code from libvirt_list_domains and fit it in.
I'm almost sure it's not the most elegant and clean solution but it
works fine in my tests.
Hopefully a fix will be included in the next libvirt-php release.
Thanks.
Fer
On mié, sep 7, 2016 at 3:58 , Matthias Bolte
<matthias.bolte(a)googlemail.com> wrote:
2016-09-07 14:20 GMT+02:00 Fernando Casas Schössow
<casasfernando(a)hotmail.com>:
> Hi all,
>
> I'm using libvirt-php to manage a Hyper-V 2012 R2 host.
> When trying to retrieve the active VMs using the function
> libvirt_list_active_domains() I get an array with the correct
> amount of
> items but with garbage instead of the domain names:
>
> Array ( [0] => P’*µ [1] => +µ [2] => `„*µ [3] => °Ø*µ [4]
> => Є*µ [5] =>
> `†*µ [6] => [7] => `†*µ [8] => [9] => p +µ [10] => p"+µ
> [11] => P#+µ [12] =>
> ß*µ )
>
> On the other hand libvirt_list_inactive_domains() and
> libvirt_list_domains()
> work as expected returning the right amount of items and the domain
> names
> correctly:
>
> libvirt_list_inactive_domains() output:
>
> Array ( [0] => DCHOMELAB01 [1] => VMFCSW7 [2] => REMOTEAPP01 [3] =>
> MPSSD01
> [4] => CS16SVR )
The problem is here
http://libvirt.org/git/?p=libvirt-php.git;a=blob;f=src/libvirt-php.c;h=20...
libvirt_list_active_domains gets the domain name using
virDomainGetName, then frees the domain object using virDomainFree
(this also frees the domain name) and afterwards tries to use the
already freed domain name.
libvirt_list_active_domains needs to add the domian name to the result
list and then free the domain. For example, libvirt_list_domains does
it in the correct order.
--
Matthias Bolte
http://photron.blogspot.com
11:01 a.m.
On 07.09.2016 15:58, Matthias Bolte wrote:
2016-09-07 14:20 GMT+02:00 Fernando Casas Schössow
<casasfernando(a)hotmail.com>:
> Hi all,
>
> I'm using libvirt-php to manage a Hyper-V 2012 R2 host.
> When trying to retrieve the active VMs using the function
> libvirt_list_active_domains() I get an array with the correct amount of
> items but with garbage instead of the domain names:
>
> Array ( [0] => P’*µ [1] => +µ [2] => `„*µ [3] => °Ø*µ [4] => Є*µ [5]
=>
> `†*µ [6] => [7] => `†*µ [8] => [9] => p +µ [10] => p"+µ [11]
=> P#+µ [12] =>
> ß*µ )
>
> On the other hand libvirt_list_inactive_domains() and libvirt_list_domains()
> work as expected returning the right amount of items and the domain names
> correctly:
>
> libvirt_list_inactive_domains() output:
>
> Array ( [0] => DCHOMELAB01 [1] => VMFCSW7 [2] => REMOTEAPP01 [3] =>
MPSSD01
> [4] => CS16SVR )
Hey thank you for the bug report. It's important to me to fix whatever
bugs you find, because libvirt-php hasn't been given enough attention
lately.
The problem is here
http://libvirt.org/git/?p=libvirt-php.git;a=blob;f=src/libvirt-php.c;h=20...
libvirt_list_active_domains gets the domain name using
virDomainGetName, then frees the domain object using virDomainFree
(this also frees the domain name) and afterwards tries to use the
already freed domain name.
libvirt_list_active_domains needs to add the domian name to the result
list and then free the domain. For example, libvirt_list_domains does
it in the correct order.
And thanks to Matthias for the analysis. You're right. I've just pushed
the patch for it. @Fernando you can try it out.
http://libvirt.org/git/?p=libvirt-php.git;a=commitdiff;h=a0039f72a1c480e5...
Michal
11:16 a.m.
Thanks Michal. :)
I'm patching and re-building as we speak.
Will report the results in a few minutes.
On mié, sep 7, 2016 at 6:01 , Michal Privoznik <mprivozn(a)redhat.com>
wrote:
On 07.09.2016 15:58, Matthias Bolte wrote:
> 2016-09-07 14:20 GMT+02:00 Fernando Casas Schössow
> <casasfernando(a)hotmail.com>:
>> Hi all,
>>
>> I'm using libvirt-php to manage a Hyper-V 2012 R2 host.
>> When trying to retrieve the active VMs using the function
>> libvirt_list_active_domains() I get an array with the correct
>> amount of
>> items but with garbage instead of the domain names:
>>
>> Array ( [0] => P’*µ [1] => +µ [2] => `„*µ [3] => °Ø*µ
>> [4] => Є*µ [5] =>
>> `†*µ [6] => [7] => `†*µ [8] => [9] => p +µ [10] => p"+µ
>> [11] => P#+µ [12] =>
>> ß*µ )
>>
>> On the other hand libvirt_list_inactive_domains() and
>> libvirt_list_domains()
>> work as expected returning the right amount of items and the
>> domain names
>> correctly:
>>
>> libvirt_list_inactive_domains() output:
>>
>> Array ( [0] => DCHOMELAB01 [1] => VMFCSW7 [2] => REMOTEAPP01 [3]
>> => MPSSD01
>> [4] => CS16SVR )
Hey thank you for the bug report. It's important to me to fix whatever
bugs you find, because libvirt-php hasn't been given enough attention
lately.
>
> The problem is here
>
>
>
http://libvirt.org/git/?p=libvirt-php.git;a=blob;f=src/libvirt-php.c;h=20...
>
> libvirt_list_active_domains gets the domain name using
> virDomainGetName, then frees the domain object using virDomainFree
> (this also frees the domain name) and afterwards tries to use the
> already freed domain name.
>
> libvirt_list_active_domains needs to add the domian name to the
> result
> list and then free the domain. For example, libvirt_list_domains
> does
> it in the correct order.
>
And thanks to Matthias for the analysis. You're right. I've just
pushed
the patch for it. @Fernando you can try it out.
http://libvirt.org/git/?p=libvirt-php.git;a=commitdiff;h=a0039f72a1c480e5...
Michal
11:27 a.m.
The patch is working Michal. :)
Thanks.
Fer
On mié, sep 7, 2016 at 6:16 , Fernando Casas Schössow
<casasfernando(a)hotmail.com> wrote:
Thanks Michal. :)
I'm patching and re-building as we speak.
Will report the results in a few minutes.
On mié, sep 7, 2016 at 6:01 , Michal Privoznik <mprivozn(a)redhat.com>
wrote:
> On 07.09.2016 15:58, Matthias Bolte wrote:
>> 2016-09-07 14:20 GMT+02:00 Fernando Casas Schössow
>> <casasfernando(a)hotmail.com>:
>>> Hi all,
>>>
>>> I'm using libvirt-php to manage a Hyper-V 2012 R2 host.
>>> When trying to retrieve the active VMs using the function
>>> libvirt_list_active_domains() I get an array with the correct
>>> amount of
>>> items but with garbage instead of the domain names:
>>>
>>> Array ( [0] => P’*µ [1] => +µ [2] => `„*µ [3] => °Ø*µ
>>> [4] => Є*µ [5] =>
>>> `†*µ [6] => [7] => `†*µ [8] => [9] => p +µ [10] => p"+µ
>>> [11] => P#+µ [12] =>
>>> ß*µ )
>>>
>>> On the other hand libvirt_list_inactive_domains() and
>>> libvirt_list_domains()
>>> work as expected returning the right amount of items and the
>>> domain names
>>> correctly:
>>>
>>> libvirt_list_inactive_domains() output:
>>>
>>> Array ( [0] => DCHOMELAB01 [1] => VMFCSW7 [2] => REMOTEAPP01 [3]
>>> => MPSSD01
>>> [4] => CS16SVR )
>
> Hey thank you for the bug report. It's important to me to fix
> whatever
> bugs you find, because libvirt-php hasn't been given enough attention
> lately.
>
>>
>> The problem is here
>>
>>
>>
http://libvirt.org/git/?p=libvirt-php.git;a=blob;f=src/libvirt-php.c;h=20...
>>
>> libvirt_list_active_domains gets the domain name using
>> virDomainGetName, then frees the domain object using virDomainFree
>> (this also frees the domain name) and afterwards tries to use the
>> already freed domain name.
>>
>> libvirt_list_active_domains needs to add the domian name to the
>> result
>> list and then free the domain. For example, libvirt_list_domains
>> does
>> it in the correct order.
>>
>
> And thanks to Matthias for the analysis. You're right. I've just
> pushed
> the patch for it. @Fernando you can try it out.
>
>
http://libvirt.org/git/?p=libvirt-php.git;a=commitdiff;h=a0039f72a1c480e5...
>
> Michal
3223
days inactive
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days old
5 comments
3 participants
participants (3)
-
Fernando Casas Schössow -
Matthias Bolte -
Michal Privoznik