Xen project Mailing List

Re: [Xen-users] DomU max memory problem

Date: Tue, 16 Sep 2008 15:57:17 +0530

Delivery-date: Tue, 16 Sep 2008 03:27:54 -0700

Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=RS4q6ye4nEPHb1KvUPm/D84x6NOdHb1ac3GMUnIGyow89PlSwary4AoTvYJ/SWDBDX xQEmBqUWyTP1BAfGoaUUIG4AHT355UrVZejSQuKsN1gLzOl7eSWbMh+29OMz3lxxfRMg OvEvefKkaWrxEODp2vCbS6ZiLFtrPwGemKyIE=

List-id: Xen user discussion <xen-users.lists.xensource.com>

On 9/15/08, Pavel Krejca <krejca@xxxxxxxxxx> wrote: > Hi, > > when trying to run new domain under xen-3.2.1 with more than 127 MB > memory set in config file, I get this error message: > "Error: memory_dynamic_max must be less than or equal to memory_static_max" > > 128 MB is probably default value for domu. I tried to raise it by > "maxmem" option in guest config, but with same result (seems that maxmem > keyword is ignored by xend). I also tried to increase mem limits with > "xm mem-max" and "xm mem-set" on running domain, but it has no effect > unless domain is restarted. But after reboot, I get the same error message. > Last thing I tried was to hardcode higher default memory limit in > XendConfig.py (and compiled it to .pyc) but it had no effect too. check your /etc/xen/xend-config.sxp file for "dom0-min-mem". It should not be set to 0. HTH thanks -tej > > So my question is, how can I start guest domain with memory set to more > than 128 MB? I suspect this value to be saved somewhere in xend cache, > but I can't find it. Why does Balloon driver think that only 131064 KiB > is free? Thanks for answer. My configuration follows: > > [xen]# cat /etc/xen/auto/testdomain.cfg > kernel = "/boot/vmlinuz-xenU" > cpus = "^0" > maxmem = 512 > memory = 256 > name = "test_domain" > vif = ['ip=192.168.0.2,bridge=eth0'] > disk = ['phy:sdb1,sda1,w','phy:sdb2,sda2,w'] > root = "/dev/sda1 ro" > > [xen]# tail /var/log/xen/xend.log > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:84) > XendDomainInfo.create(['vm', ['name', 'test_domain'], ['memory', 256], > ['maxmem', 512], ['vcpus', 1], ['on_xend_start', 'ignore'], > ['on_xend_stop', 'ignore'], ['cpus', '^0'], ['image', ['linux', > ['kernel', '/boot/vmlinuz-xenU'], ['root', '/dev/sda1 ro']]], ['device', > ['vbd', ['uname', 'phy:sdb1'], ['dev', 'sda1'], ['mode', 'w']]], > ['device', ['vbd', ['uname', 'phy:sdb2'], ['dev', 'sda2'], ['mode', > 'w']]], ['device', ['vif', ['ip', '192.168.0.2'], ['bridge', 'eth0']]]]) > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:1618) > XendDomainInfo.constructDomain > [2008-09-12 15:03:46 11411] DEBUG (balloon:132) Balloon: 131072 KiB > free; need 2048; done. > [2008-09-12 15:03:46 11411] DEBUG (XendDomain:443) Adding Domain: 6 > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:1703) > XendDomainInfo.initDomain: 6 256 > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:1738) > _initDomain:shadow_memory=0x0, memory_static_max=0x20000000, > memory_static_min=0x0. > [2008-09-12 15:03:46 11411] DEBUG (balloon:138) Balloon: 131064 KiB > free; 0 to scrub; need 262144; retries: 20. > [2008-09-12 15:03:46 11411] DEBUG (balloon:153) Balloon: setting dom0 > target to 3744 MiB. > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:693) Setting memory > target of domain Domain-0 (0) to 3744 MiB. > [2008-09-12 15:03:46 11411] ERROR (XendDomainInfo:1775) > XendDomainInfo.initDomain: exception occurred > Traceback (most recent call last): > File "usr/lib64/python2.5/site-packages/xen/xend/XendDomainInfo.py", > line 1747, in _initDomain > balloon.free(memory + shadow) > File "usr/lib64/python2.5/site-packages/xen/xend/balloon.py", line > 154, in free > dom0.setMemoryTarget(new_alloc_mb) > File "usr/lib64/python2.5/site-packages/xen/xend/XendDomainInfo.py", > line 697, in setMemoryTarget > self._safe_set_memory('memory_dynamic_max', target * MiB) > File "usr/lib64/python2.5/site-packages/xen/xend/XendDomainInfo.py", > line 2362, in _safe_set_memory > self.info._memory_sanity_check() > File "usr/lib64/python2.5/site-packages/xen/xend/XendConfig.py", line > 366, in _memory_sanity_check > raise XendConfigError("memory_dynamic_max must be less " \ > XendConfigError: Invalid Configuration: memory_dynamic_max must be less > than or equal to memory_static_max > [2008-09-12 15:03:46 11411] ERROR (XendDomainInfo:440) VM start failed > Traceback (most recent call last): > File "usr/lib64/python2.5/site-packages/xen/xend/XendDomainInfo.py", > line 420, in start > XendTask.log_progress(31, 60, self._initDomain) > File "usr/lib64/python2.5/site-packages/xen/xend/XendTask.py", line > 209, in log_progress > retval = func(*args, **kwds) > File "usr/lib64/python2.5/site-packages/xen/xend/XendDomainInfo.py", > line 1778, in _initDomain > raise exn > XendConfigError: Invalid Configuration: memory_dynamic_max must be less > than or equal to memory_static_max > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:1897) > XendDomainInfo.destroy: domid=6 > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:1914) > XendDomainInfo.destroyDomain(6) > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:1529) Destroying > device model > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:1536) Releasing devices > [2008-09-12 15:03:46 11411] ERROR (XendDomainInfo:89) Domain > construction failed > Traceback (most recent call last): > File "usr/lib64/python2.5/site-packages/xen/xend/XendDomainInfo.py", > line 87, in create > vm.start() > File "usr/lib64/python2.5/site-packages/xen/xend/XendDomainInfo.py", > line 420, in start > XendTask.log_progress(31, 60, self._initDomain) > File "usr/lib64/python2.5/site-packages/xen/xend/XendTask.py", line > 209, in log_progress > retval = func(*args, **kwds) > File "usr/lib64/python2.5/site-packages/xen/xend/XendDomainInfo.py", > line 1778, in _initDomain > raise exn > XendConfigError: Invalid Configuration: memory_dynamic_max must be less > than or equal to memory_static_max > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:1897) > XendDomainInfo.destroy: domid=None > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:1914) > XendDomainInfo.destroyDomain(None) > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:1534) No device model > [2008-09-12 15:03:46 11411] DEBUG (XendDomainInfo:1536) Releasing devices > > [xen]# xm list > Name ID Mem VCPUs State > Time(s) > Domain-0 0 512 1 r----- > 258.9 > test_domain 1 127 1 -b---- 220.8 > > [xen]# free -m > total used free shared buffers > cached > Mem: 3872 372 3500 0 88 55 > -/+ buffers/cache: 227 3644 > > [xen]# uname -a > Linux xen 2.6.21-xen #3 SMP Fri Sep 5 17:22:35 CEST 2008 x86_64 Intel(R) > Xeon(R) CPU E5420 @ 2.50GHz GenuineIntel GNU/Linux > > > Pavel > > _______________________________________________ > Xen-users mailing list > Xen-users@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-users > _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users

©2013 Xen Project, A Linux Foundation Collaborative Project. All Rights Reserved.
Linux Foundation is a registered trademark of The Linux Foundation.
Xen Project is a trademark of The Linux Foundation.