[Xen-users] Xend died due to signal 6

[<george.vargh@xxxxxxxxx>]

Hi,

 

We are having a strange problem where Xend dies due to signal 6.

In the xend.log, we observe the following:

 

[2015-03-28 09:33:24 4773] DEBUG (XendDomainInfo:2536) Removing vif/6

[2015-03-28 09:33:24 4773] DEBUG (XendDomainInfo:1320) XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/6

[2015-03-28 09:33:24 4773] DEBUG (XendDomainInfo:2536) Removing vif/7

[2015-03-28 09:33:24 4773] DEBUG (XendDomainInfo:1320) XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/7

[2015-03-28 09:33:24 4773] DEBUG (XendDomainInfo:2536) Removing vbd/768

[2015-03-28 09:33:24 4773] DEBUG (XendDomainInfo:1320) XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/768

[2015-03-28 09:33:48 4772] CRITICAL (SrvDaemon:232) Xend died due to signal 6!  Restarting it.

[2015-03-28 09:33:48 7130] INFO (SrvDaemon:332) Xend Daemon started

[2015-03-28 09:33:48 7130] INFO (SrvDaemon:336) Xend changeset: 26364.

[2015-03-28 09:33:50 7130] DEBUG (XendNode:333) pscsi record count: 7

[2015-03-28 09:33:50 7130] DEBUG (XendCPUPool:747) recreate_active_pools

 

In xend-debug.log, we observe an error like the below. We are not sure if this is related, since we don’t have timestamp in xen-debug.log.

 

Fatal Python error: deallocating None

/usr/lib64/python2.6/site-packages/xen/xend/XendAPI.py:551: DeprecationWarning: object.__new__() takes no parameters

  return object.__new__(cls, *args, **kwds)

 

This happens after running the server for a few days, where we keep destroying and creating VMs.

 

Can you please suggest any way forward on how to debug this further to identify what may be going wrong?

Also is there any work

 

Here is the version information:

 

> cat /proc/version

Linux version 3.0.101-0.46-xen (geeko@buildhost) (gcc version 4.3.4 [gcc-4_3-branch revision 152973] (SUSE Linux) ) #1 SMP Wed Dec 17 11:04:10 UTC 2014 (8356111)

 

epgsim128 users/sim0005> sudo /usr/sbin/xm info

host                   : epgsim128

release                : 3.0.101-0.46-xen

version                : #1 SMP Wed Dec 17 11:04:10 UTC 2014 (8356111)

machine                : x86_64

nr_cpus                : 24

nr_nodes               : 2

cores_per_socket       : 6

threads_per_core       : 2

cpu_mhz                : 3325

hw_caps                : bfebfbff:2c100800:00000000:00003f40:029ee3ff:00000000:00000001:00000000

virt_caps              : hvm

total_memory           : 98291

free_memory            : 74537

free_cpus              : 0

max_free_memory        : 74537

max_para_memory        : 74533

max_hvm_memory         : 74350

xen_major              : 4

xen_minor              : 2

xen_extra              : .5_02-0.7.1

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          : 26364

xen_commandline        : dom0_mem=2048M

cc_compiler            : gcc (SUSE Linux) 4.3.4 [gcc-4_3-branch revision 152973]

cc_compile_by          : abuild

cc_compile_domain      :

cc_compile_date        : Thu Nov 27 01:08:00 UTC 2014

xend_config_format     : 4

 

Best Regards

George

 

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