Re: [Xen-devel] xl list shows dom0 name as (null) in Xen 4.2.3

[Sander Eikelenboom <linux@xxxxxxxxxxxxxx>]

Friday, September 27, 2013, 8:13:25 PM, you wrote:

> Hello,

> Fedora 19 running Xen 4.2.3 rpms, "xl list" after dom0 reboot:

> [root@localhost ~]# xl list
> Name                                        ID   Mem VCPUs      State   
> Time(s)
> (null)                                       0  1024     8     r-----      
> 16.3


> Why is dom0's name "(null)" ? 
> It seems also xenstore is quite empty:

> [root@localhost ~]# xenstore-ls
> tool = ""
>  xenstored = ""

> If i start xend, and then run "xl list" again the name is correct:

> [root@localhost ~]# systemctl start xend.service
> [root@localhost ~]# xl list
> Name                                        ID   Mem VCPUs      State   
> Time(s)
> Domain-0                                     0  1024     8     r-----      
> 18.2


> So xend seems to fix it.. someone else seeing the same behaviour?
Not exactly the same, but sometimes guests end up stuck on shutdown in .. i 
thought -d---p- state and name (null).
I haven't exactly spotted when and why (although it always seem to be with 
passthrough domains in my case)

Problem with a domain in the list with name "(null)" that is .. that the 
xendomains script  bails out on shutdown before shutting down any guest (i 
seems to interpret it literally).
So it would be quite preferable that domain names do not get reset to "(null)" 
in any case ..

--
Sander

> Also xenstore gets a lot of stuff after xend is started.

> Am I missing some daemon/script that should be executed at boot time when 
> using only xl? 


> [root@localhost ~]# xl info
> host                   : localhost.localdomain
> release                : 3.11.1-200.fc19.x86_64
> version                : #1 SMP Sat Sep 14 15:04:51 UTC 2013
> machine                : x86_64
> nr_cpus                : 8
> max_cpu_id             : 7
> nr_nodes               : 1
> cores_per_socket       : 4
> threads_per_core       : 2
> cpu_mhz                : 3392
> hw_caps                : 
> bfebfbff:28100800:00000000:00007f40:77bae3ff:00000000:00000001:00000281
> virt_caps              : hvm hvm_directio
> total_memory           : 16201
> free_memory            : 14958
> sharing_freed_memory   : 0
> sharing_used_memory    : 0
> free_cpus              : 0
> xen_major              : 4
> xen_minor              : 2
> xen_extra              : .3
> xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
> hvm-3.0-x86_32p hvm-3.0-x86_64
> xen_scheduler          : credit
> xen_pagesize           : 4096
> platform_params        : virt_start=0xffff800000000000
> xen_changeset          : unavailable
> xen_commandline        : placeholder dom0_mem=1024M,max:1024M loglvl=all 
> guest_loglvl=all
> cc_compiler            : gcc (GCC) 4.8.1 20130603 (Red Hat 4.8.1-1)
> cc_compile_by          : mockbuild
> cc_compile_domain      : phx2.fedoraproject.org
> cc_compile_date        : Mon Sep  9 19:18:40 UTC 2013
> xend_config_format     : 4



> -- Pasi





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