Xen devel - Nov 2007 - using 3.1.2 c/s 15490, xend hangs when attempt to start domain with more memory than available

Using 3.1.2 c/s 15492 on Unisys ES7000 configured with 32 processors and
128 gb memory, I attempted to start a 160 gb domU.  The xm create
command hangs, as well as any other xm commands that are issued.  If I
do ctl-c of the hanging xm create command, I am able to terminate it and
then xm commands are once again functional.

 

I expected to get an error that there was not enough memory available to
start the domain.  

 

Xend.log shows:

[2007-11-01 12:18:34 22824] DEBUG (XendDomainInfo:84)
XendDomainInfo.create([''vm'', [''name'',
''sles10gm-test_32x160gb-dom101''],
[''memory'', 163840], [''vcpus'', 32],
[''on_xend_start'', ''ignore''],
[''on_xend_stop'', ''ignore''],
[''image'', [''linux'',
[''kernel'',
''/boot/vmlinuz-xen''], [''ramdisk'',
''/boot/initrd-xen''], [''ip'',
''10.0.75.101:1.2.3.4::255.254.0.0::eth0:off''],
[''root'', ''/dev/sda2 ro''],
[''args'', ''xencons=tty1'']]],
[''device'', [''vbd'',
[''uname'',
''file:/mnt/xenlsg/xenimages/domu//sles10gm-test1.img''],
[''dev'', ''sda''],
[''mode'', ''w'']]],
[''device'', [''vif'', [''ip'',
''10.0.75.101'']]]])

[2007-11-01 12:18:34 22824] DEBUG (XendDomainInfo:1506)
XendDomainInfo.constructDomain

[2007-11-01 12:18:34 22824] DEBUG (balloon:116) Balloon: 128164472 KiB
free; need 2048; done.

[2007-11-01 12:18:34 22824] DEBUG (XendDomain:434) Adding Domain: 198

[2007-11-01 12:18:34 22824] DEBUG (XendDomainInfo:1560)
XendDomainInfo.initDomain: 198 256

[2007-11-01 12:18:34 22824] DEBUG (XendDomainInfo:1591)
_initDomain:shadow_memory=0x0, memory_static_max=0x2800000000,
memory_static_min=0x0.

[2007-11-01 12:18:34 22824] DEBUG (balloon:122) Balloon: 128164464 KiB
free; 0 to scrub; need 167772160; retries: 205.

[2007-11-01 12:18:35 22824] DEBUG (balloon:122) Balloon: 128164464 KiB
free; 0 to scrub; need 167772160; retries: 390.

 

Thanks,

Sue Krysan

Linux Systems Group

Unisys Corporation

 

 



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