* xen 4.3.2 rc1 memory ballooning
@ 2014-02-14 14:46 Vasiliy Tolstov
2014-02-14 14:55 ` Vasiliy Tolstov
2014-02-14 16:34 ` Wei Liu
0 siblings, 2 replies; 21+ messages in thread
From: Vasiliy Tolstov @ 2014-02-14 14:46 UTC (permalink / raw)
To: xen-devel
Hi all.
Today i'm compile xen 4.3.2 rc1 from stable-4.3 branch.
Also i'm using upstream qemu from debian jessie (1.7.0).
Domain created and works fine.
memory=512
maxmemory=1024
Problem:
>From dom0 xl mem-set works fine, it modifies xenstore and do hipercall to xen.
>From domU side memory ballooned up.
Now i'm try to balloon up memory from guest (write to
/sys/devices/system/xen_memory/xen_memory0/target) and memory
ballooned up only to 1Mb. For example before 512, after 513.
Main problems that i cant upgrade guest kernel (i have many vps with
2.6.32.26 from old xen kernel git tree).
How can i deal with it? Whats wrong from xen side?
--
Vasiliy Tolstov,
e-mail: v.tolstov@selfip.ru
jabber: vase@selfip.ru
^ permalink raw reply [flat|nested] 21+ messages in thread* Re: xen 4.3.2 rc1 memory ballooning 2014-02-14 14:46 xen 4.3.2 rc1 memory ballooning Vasiliy Tolstov @ 2014-02-14 14:55 ` Vasiliy Tolstov 2014-02-14 16:34 ` Wei Liu 1 sibling, 0 replies; 21+ messages in thread From: Vasiliy Tolstov @ 2014-02-14 14:55 UTC (permalink / raw) To: Vasiliy Tolstov; +Cc: xen-devel As workaround i can use xl mem-set xxx maxmemory, after that guest vm can balloon up and down memory inside range 0 - maxmemory. 2014-02-14 18:46 GMT+04:00 Vasiliy Tolstov <v.tolstov@selfip.ru>: > Hi all. > Today i'm compile xen 4.3.2 rc1 from stable-4.3 branch. > Also i'm using upstream qemu from debian jessie (1.7.0). > > Domain created and works fine. > memory=512 > maxmemory=1024 > > Problem: > From dom0 xl mem-set works fine, it modifies xenstore and do hipercall to xen. > From domU side memory ballooned up. > > Now i'm try to balloon up memory from guest (write to > /sys/devices/system/xen_memory/xen_memory0/target) and memory > ballooned up only to 1Mb. For example before 512, after 513. > > Main problems that i cant upgrade guest kernel (i have many vps with > 2.6.32.26 from old xen kernel git tree). > > How can i deal with it? Whats wrong from xen side? > > > -- > Vasiliy Tolstov, > e-mail: v.tolstov@selfip.ru > jabber: vase@selfip.ru -- Vasiliy Tolstov, e-mail: v.tolstov@selfip.ru jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-14 14:46 xen 4.3.2 rc1 memory ballooning Vasiliy Tolstov 2014-02-14 14:55 ` Vasiliy Tolstov @ 2014-02-14 16:34 ` Wei Liu 2014-02-14 18:12 ` Vasiliy Tolstov 1 sibling, 1 reply; 21+ messages in thread From: Wei Liu @ 2014-02-14 16:34 UTC (permalink / raw) To: Vasiliy Tolstov; +Cc: xen-devel, wei.liu2 On Fri, Feb 14, 2014 at 06:46:02PM +0400, Vasiliy Tolstov wrote: > Hi all. > Today i'm compile xen 4.3.2 rc1 from stable-4.3 branch. > Also i'm using upstream qemu from debian jessie (1.7.0). > > Domain created and works fine. > memory=512 > maxmemory=1024 > This should be "maxmem"? I could not find "maxmemory" in documents. > Problem: > >From dom0 xl mem-set works fine, it modifies xenstore and do hipercall to xen. > >From domU side memory ballooned up. > > Now i'm try to balloon up memory from guest (write to > /sys/devices/system/xen_memory/xen_memory0/target) and memory > ballooned up only to 1Mb. For example before 512, after 513. > > Main problems that i cant upgrade guest kernel (i have many vps with > 2.6.32.26 from old xen kernel git tree). > > How can i deal with it? Whats wrong from xen side? > My gut feeling is nothing is wrong with Xen. It's just that you have a typo in your config file. :-) Wei. > > -- > Vasiliy Tolstov, > e-mail: v.tolstov@selfip.ru > jabber: vase@selfip.ru > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-14 16:34 ` Wei Liu @ 2014-02-14 18:12 ` Vasiliy Tolstov 2014-02-17 9:27 ` Vasiliy Tolstov 0 siblings, 1 reply; 21+ messages in thread From: Vasiliy Tolstov @ 2014-02-14 18:12 UTC (permalink / raw) To: Wei Liu; +Cc: xen-devel 2014-02-14 20:34 GMT+04:00 Wei Liu <wei.liu2@citrix.com>: > My gut feeling is nothing is wrong with Xen. It's just that you have a > typo in your config file. :-) > > Wei. No, if i have error in config domain can't start. You known that. my config is: name="21-10918" kernel="/var/storage/kernel/debian/6/kernel-64" ramdisk="/var/storage/kernel/ramdisk-64" vif=["mac=00:16:3e:00:2c:63,ip=62.76.185.64"] disk=["phy:/dev/disk/vbd/21-916,xvda,w"] memory=512 maxmem=1024 vcpus=3 maxvcpus=3 cpu_cap=300 cpu_weight=256 vfb=["type=vnc,vnclisten=0.0.0.0,vncpasswd=7QOG1885y3"] extra="root=/dev/xvda1 selinux=1 enforcing=0 iommu=off swiotlb=off earlyprintk=xen console=hvc0" on_restart="destroy" cpuid="host,x2apic=0,aes=0,xsave=0,avx=0" device_model_version="qemu-xen" device_model_override="/usr/bin/qemu-system-x86_64" -- Vasiliy Tolstov, e-mail: v.tolstov@selfip.ru jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-14 18:12 ` Vasiliy Tolstov @ 2014-02-17 9:27 ` Vasiliy Tolstov 2014-02-17 10:19 ` Daniel Kiper 2014-02-17 10:32 ` Wei Liu 0 siblings, 2 replies; 21+ messages in thread From: Vasiliy Tolstov @ 2014-02-17 9:27 UTC (permalink / raw) To: Vasiliy Tolstov; +Cc: xen-devel, Wei Liu Update info: If i from dom0 do xl mem-set XXX maxmem, domU can balloon up/down fine. What is the difference between 4.1 and 4.3 in this case? 2014-02-14 22:12 GMT+04:00 Vasiliy Tolstov <v.tolstov@selfip.ru>: > 2014-02-14 20:34 GMT+04:00 Wei Liu <wei.liu2@citrix.com>: >> My gut feeling is nothing is wrong with Xen. It's just that you have a >> typo in your config file. :-) >> >> Wei. > > No, if i have error in config domain can't start. You known that. > my config is: > > name="21-10918" > kernel="/var/storage/kernel/debian/6/kernel-64" > ramdisk="/var/storage/kernel/ramdisk-64" > vif=["mac=00:16:3e:00:2c:63,ip=62.76.185.64"] > disk=["phy:/dev/disk/vbd/21-916,xvda,w"] > memory=512 > maxmem=1024 > vcpus=3 > maxvcpus=3 > cpu_cap=300 > cpu_weight=256 > vfb=["type=vnc,vnclisten=0.0.0.0,vncpasswd=7QOG1885y3"] > extra="root=/dev/xvda1 selinux=1 enforcing=0 iommu=off swiotlb=off > earlyprintk=xen console=hvc0" > on_restart="destroy" > cpuid="host,x2apic=0,aes=0,xsave=0,avx=0" > device_model_version="qemu-xen" > device_model_override="/usr/bin/qemu-system-x86_64" > > -- > Vasiliy Tolstov, > e-mail: v.tolstov@selfip.ru > jabber: vase@selfip.ru -- Vasiliy Tolstov, e-mail: v.tolstov@selfip.ru jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-17 9:27 ` Vasiliy Tolstov @ 2014-02-17 10:19 ` Daniel Kiper 2014-02-17 10:25 ` Vasiliy Tolstov 2014-02-17 10:32 ` Wei Liu 1 sibling, 1 reply; 21+ messages in thread From: Daniel Kiper @ 2014-02-17 10:19 UTC (permalink / raw) To: Vasiliy Tolstov; +Cc: xen-devel, Wei Liu On Mon, Feb 17, 2014 at 01:27:57PM +0400, Vasiliy Tolstov wrote: > Update info: > If i from dom0 do xl mem-set XXX maxmem, domU can balloon up/down fine. > What is the difference between 4.1 and 4.3 in this case? Have you moved from xm to xl? If yes this is the change. You could find more info here: http://lists.xen.org/archives/html/xen-devel/2013-04/msg03072.html Those patches are not applied. However, I am going to back to this work one day. Daniel ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-17 10:19 ` Daniel Kiper @ 2014-02-17 10:25 ` Vasiliy Tolstov 2014-02-17 10:56 ` Daniel Kiper 0 siblings, 1 reply; 21+ messages in thread From: Vasiliy Tolstov @ 2014-02-17 10:25 UTC (permalink / raw) To: Daniel Kiper; +Cc: xen-devel, Wei Liu 2014-02-17 14:19 GMT+04:00 Daniel Kiper <dkiper@net-space.pl>: > Have you moved from xm to xl? If yes this is the change. You could > find more info here: http://lists.xen.org/archives/html/xen-devel/2013-04/msg03072.html > Those patches are not applied. However, I am going to back to this > work one day. Thanks! Yes, i moved from xm to xl. Does this patches can work with xen 4.3? -- Vasiliy Tolstov, e-mail: v.tolstov@selfip.ru jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-17 10:25 ` Vasiliy Tolstov @ 2014-02-17 10:56 ` Daniel Kiper 2014-02-19 11:47 ` Vasiliy Tolstov 0 siblings, 1 reply; 21+ messages in thread From: Daniel Kiper @ 2014-02-17 10:56 UTC (permalink / raw) To: Vasiliy Tolstov; +Cc: xen-devel, Wei Liu, Daniel Kiper On Mon, Feb 17, 2014 at 02:25:53PM +0400, Vasiliy Tolstov wrote: > 2014-02-17 14:19 GMT+04:00 Daniel Kiper <dkiper@net-space.pl>: > > Have you moved from xm to xl? If yes this is the change. You could > > find more info here: http://lists.xen.org/archives/html/xen-devel/2013-04/msg03072.html > > Those patches are not applied. However, I am going to back to this > > work one day. > > > Thanks! Yes, i moved from xm to xl. Does this patches can work with xen 4.3? They should. IIRC they were targeted for 4.3. Daniel ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-17 10:56 ` Daniel Kiper @ 2014-02-19 11:47 ` Vasiliy Tolstov 2014-02-20 19:07 ` Daniel Kiper 0 siblings, 1 reply; 21+ messages in thread From: Vasiliy Tolstov @ 2014-02-19 11:47 UTC (permalink / raw) To: Daniel Kiper; +Cc: xen-devel, Wei Liu 2014-02-17 14:56 GMT+04:00 Daniel Kiper <dkiper@net-space.pl>: > They should. IIRC they were targeted for 4.3. Daniel, can you check this https://gist.github.com/vtolstov/9090413/raw/dc457631fe0b6df793552494d059eac62fd962e0/gistfile1.txt this is patch that merges 4 patches from email (because i can't get attaches and after copy/paste i have errors). As i see nothing changed , i'm use enforce=0 in xl.conf and start domain with memory=512 and maxmem=1024. -- Vasiliy Tolstov, e-mail: v.tolstov@selfip.ru jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-19 11:47 ` Vasiliy Tolstov @ 2014-02-20 19:07 ` Daniel Kiper 2014-02-21 2:52 ` Vasiliy Tolstov 0 siblings, 1 reply; 21+ messages in thread From: Daniel Kiper @ 2014-02-20 19:07 UTC (permalink / raw) To: Vasiliy Tolstov; +Cc: xen-devel, Wei Liu, Daniel Kiper Hey, On Wed, Feb 19, 2014 at 03:47:10PM +0400, Vasiliy Tolstov wrote: > 2014-02-17 14:56 GMT+04:00 Daniel Kiper <dkiper@net-space.pl>: > > They should. IIRC they were targeted for 4.3. > > > Daniel, can you check this > https://gist.github.com/vtolstov/9090413/raw/dc457631fe0b6df793552494d059eac62fd962e0/gistfile1.txt > this is patch that merges 4 patches from email (because i can't get > attaches and after copy/paste i have errors). > As i see nothing changed , i'm use enforce=0 in xl.conf and start > domain with memory=512 and maxmem=1024. Use "mem_set_enforce_limit=0" in xl.conf instead of "enforce=0". Daniel ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-20 19:07 ` Daniel Kiper @ 2014-02-21 2:52 ` Vasiliy Tolstov 2014-02-21 9:53 ` Wei Liu 0 siblings, 1 reply; 21+ messages in thread From: Vasiliy Tolstov @ 2014-02-21 2:52 UTC (permalink / raw) To: Daniel Kiper; +Cc: xen-devel, Wei Liu 2014-02-20 23:07 GMT+04:00 Daniel Kiper <dkiper@net-space.pl>: > Use "mem_set_enforce_limit=0" in xl.conf instead of "enforce=0". I'm already do that, but nothing changed =( -- Vasiliy Tolstov, e-mail: v.tolstov@selfip.ru jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-21 2:52 ` Vasiliy Tolstov @ 2014-02-21 9:53 ` Wei Liu 2014-02-21 9:59 ` Vasiliy Tolstov 0 siblings, 1 reply; 21+ messages in thread From: Wei Liu @ 2014-02-21 9:53 UTC (permalink / raw) To: Vasiliy Tolstov; +Cc: xen-devel, Wei Liu, Daniel Kiper On Fri, Feb 21, 2014 at 06:52:30AM +0400, Vasiliy Tolstov wrote: > 2014-02-20 23:07 GMT+04:00 Daniel Kiper <dkiper@net-space.pl>: > > Use "mem_set_enforce_limit=0" in xl.conf instead of "enforce=0". > > > I'm already do that, but nothing changed =( > Just to confirm, you added that in /etc/xen/xl.conf, right? My vague memory tells me that it's a global thing. I could be wrong though... Wei. > -- > Vasiliy Tolstov, > e-mail: v.tolstov@selfip.ru > jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-21 9:53 ` Wei Liu @ 2014-02-21 9:59 ` Vasiliy Tolstov 2014-02-21 10:39 ` Wei Liu 0 siblings, 1 reply; 21+ messages in thread From: Vasiliy Tolstov @ 2014-02-21 9:59 UTC (permalink / raw) To: Wei Liu; +Cc: xen-devel, Daniel Kiper 2014-02-21 13:53 GMT+04:00 Wei Liu <wei.liu2@citrix.com>: > Just to confirm, you added that in /etc/xen/xl.conf, right? My vague > memory tells me that it's a global thing. I could be wrong though... Yes, autoballoon = 0 lockfile = "/var/lock/xl" vifscript = "/etc/xen/scripts/vif-ospf" mem_set_enforce_limit = 0 claim_mode = 1 vif.default.script = "/etc/xen/scripts/vif-ospf" -- Vasiliy Tolstov, e-mail: v.tolstov@selfip.ru jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-21 9:59 ` Vasiliy Tolstov @ 2014-02-21 10:39 ` Wei Liu 2014-02-21 10:44 ` Vasiliy Tolstov 2014-02-21 14:28 ` Daniel Kiper 0 siblings, 2 replies; 21+ messages in thread From: Wei Liu @ 2014-02-21 10:39 UTC (permalink / raw) To: Vasiliy Tolstov; +Cc: xen-devel, Wei Liu, Daniel Kiper On Fri, Feb 21, 2014 at 01:59:39PM +0400, Vasiliy Tolstov wrote: > 2014-02-21 13:53 GMT+04:00 Wei Liu <wei.liu2@citrix.com>: > > Just to confirm, you added that in /etc/xen/xl.conf, right? My vague > > memory tells me that it's a global thing. I could be wrong though... > > > Yes, > autoballoon = 0 > lockfile = "/var/lock/xl" > vifscript = "/etc/xen/scripts/vif-ospf" > mem_set_enforce_limit = 0 > claim_mode = 1 > vif.default.script = "/etc/xen/scripts/vif-ospf" > Ah, so Daniel's change only affects "xl mem-set" command. When building a domain the maxmem is still capped to target_memory (which is memory= in you domain config file). Unfortunately Daniel's patch won't help you much with that. Wei. > > -- > Vasiliy Tolstov, > e-mail: v.tolstov@selfip.ru > jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-21 10:39 ` Wei Liu @ 2014-02-21 10:44 ` Vasiliy Tolstov 2014-02-21 10:56 ` Wei Liu 2014-02-21 14:28 ` Daniel Kiper 1 sibling, 1 reply; 21+ messages in thread From: Vasiliy Tolstov @ 2014-02-21 10:44 UTC (permalink / raw) To: Wei Liu; +Cc: xen-devel, Daniel Kiper 2014-02-21 14:39 GMT+04:00 Wei Liu <wei.liu2@citrix.com>: > Ah, so Daniel's change only affects "xl mem-set" command. When building a > domain the maxmem is still capped to target_memory (which is memory= in > you domain config file). > > Unfortunately Daniel's patch won't help you much with that =( Very bad. How much changes needed to fix that? -- Vasiliy Tolstov, e-mail: v.tolstov@selfip.ru jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-21 10:44 ` Vasiliy Tolstov @ 2014-02-21 10:56 ` Wei Liu 2014-02-21 11:30 ` Vasiliy Tolstov 0 siblings, 1 reply; 21+ messages in thread From: Wei Liu @ 2014-02-21 10:56 UTC (permalink / raw) To: Vasiliy Tolstov; +Cc: xen-devel, Wei Liu, Daniel Kiper On Fri, Feb 21, 2014 at 02:44:41PM +0400, Vasiliy Tolstov wrote: > 2014-02-21 14:39 GMT+04:00 Wei Liu <wei.liu2@citrix.com>: > > Ah, so Daniel's change only affects "xl mem-set" command. When building a > > domain the maxmem is still capped to target_memory (which is memory= in > > you domain config file). > > > > Unfortunately Daniel's patch won't help you much with that > > > =( Very bad. How much changes needed to fix that? > DISCLAIMER: xl is designed like that for a reason, I don't think I know this particular reason. I just know how it is implemented. So you need to evaluate the risk before changing it. I wouldn't claim the following paragraphs as a "fix" to this issue. If you don't care much about altering the behavior, the change is only oneliner. Find libxl/libxl_dom.c:libxl__build_pre, then look for xc_domain_setmaxmem. There's a parameter "info->target_memkb". Change it to "info->max_memkb". With that change, not the cap is set to maxmem= by default when building a domain. Wei. > -- > Vasiliy Tolstov, > e-mail: v.tolstov@selfip.ru > jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-21 10:56 ` Wei Liu @ 2014-02-21 11:30 ` Vasiliy Tolstov 2014-02-21 11:35 ` Wei Liu 0 siblings, 1 reply; 21+ messages in thread From: Vasiliy Tolstov @ 2014-02-21 11:30 UTC (permalink / raw) To: Wei Liu; +Cc: xen-devel, Daniel Kiper 2014-02-21 14:56 GMT+04:00 Wei Liu <wei.liu2@citrix.com>: > DISCLAIMER: xl is designed like that for a reason, I don't think I know > this particular reason. I just know how it is implemented. So you need > to evaluate the risk before changing it. I wouldn't claim the following > paragraphs as a "fix" to this issue. > > If you don't care much about altering the behavior, the change is only > oneliner. Find libxl/libxl_dom.c:libxl__build_pre, then look for > xc_domain_setmaxmem. There's a parameter "info->target_memkb". Change it > to "info->max_memkb". > > With that change, not the cap is set to maxmem= by default when building > a domain. Thanks! =) May be alter current setting based on enforce param from Daniel patch? -- Vasiliy Tolstov, e-mail: v.tolstov@selfip.ru jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-21 11:30 ` Vasiliy Tolstov @ 2014-02-21 11:35 ` Wei Liu 2014-02-21 11:40 ` Vasiliy Tolstov 0 siblings, 1 reply; 21+ messages in thread From: Wei Liu @ 2014-02-21 11:35 UTC (permalink / raw) To: Vasiliy Tolstov; +Cc: xen-devel, Wei Liu, Daniel Kiper On Fri, Feb 21, 2014 at 03:30:21PM +0400, Vasiliy Tolstov wrote: > 2014-02-21 14:56 GMT+04:00 Wei Liu <wei.liu2@citrix.com>: > > DISCLAIMER: xl is designed like that for a reason, I don't think I know > > this particular reason. I just know how it is implemented. So you need > > to evaluate the risk before changing it. I wouldn't claim the following > > paragraphs as a "fix" to this issue. > > > > If you don't care much about altering the behavior, the change is only > > oneliner. Find libxl/libxl_dom.c:libxl__build_pre, then look for > > xc_domain_setmaxmem. There's a parameter "info->target_memkb". Change it > > to "info->max_memkb". > > > > With that change, not the cap is set to maxmem= by default when building > > a domain. > > > Thanks! =) May be alter current setting based on enforce param from > Daniel patch? > That would require a fair amount of plumbing. Plus the paramater Daniel introduced might not fit this purpose. I don't think we should / can do anything before reaching a concensus on the list, not without toolstack maintainer's input. Probably something for 4.5 cycle. Wei. > -- > Vasiliy Tolstov, > e-mail: v.tolstov@selfip.ru > jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-21 11:35 ` Wei Liu @ 2014-02-21 11:40 ` Vasiliy Tolstov 0 siblings, 0 replies; 21+ messages in thread From: Vasiliy Tolstov @ 2014-02-21 11:40 UTC (permalink / raw) To: Wei Liu; +Cc: xen-devel, Daniel Kiper 2014-02-21 15:35 GMT+04:00 Wei Liu <wei.liu2@citrix.com>: > That would require a fair amount of plumbing. Plus the paramater Daniel > introduced might not fit this purpose. I don't think we should / can do > anything before reaching a concensus on the list, not without toolstack > maintainer's input. Probably something for 4.5 cycle. Ok. Anyway - big thanks for help. -- Vasiliy Tolstov, e-mail: v.tolstov@selfip.ru jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-21 10:39 ` Wei Liu 2014-02-21 10:44 ` Vasiliy Tolstov @ 2014-02-21 14:28 ` Daniel Kiper 1 sibling, 0 replies; 21+ messages in thread From: Daniel Kiper @ 2014-02-21 14:28 UTC (permalink / raw) To: Wei Liu; +Cc: xen-devel, Daniel Kiper, Vasiliy Tolstov On Fri, Feb 21, 2014 at 10:39:25AM +0000, Wei Liu wrote: > On Fri, Feb 21, 2014 at 01:59:39PM +0400, Vasiliy Tolstov wrote: > > 2014-02-21 13:53 GMT+04:00 Wei Liu <wei.liu2@citrix.com>: > > > Just to confirm, you added that in /etc/xen/xl.conf, right? My vague > > > memory tells me that it's a global thing. I could be wrong though... > > > > > > Yes, > > autoballoon = 0 > > lockfile = "/var/lock/xl" > > vifscript = "/etc/xen/scripts/vif-ospf" > > mem_set_enforce_limit = 0 > > claim_mode = 1 > > vif.default.script = "/etc/xen/scripts/vif-ospf" > > > > Ah, so Daniel's change only affects "xl mem-set" command. When building a > domain the maxmem is still capped to target_memory (which is memory= in > you domain config file). Ugh... I forgot about that. I will take this into accunt in next patch series release. Thanks. Daniel ^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: xen 4.3.2 rc1 memory ballooning 2014-02-17 9:27 ` Vasiliy Tolstov 2014-02-17 10:19 ` Daniel Kiper @ 2014-02-17 10:32 ` Wei Liu 1 sibling, 0 replies; 21+ messages in thread From: Wei Liu @ 2014-02-17 10:32 UTC (permalink / raw) To: Vasiliy Tolstov; +Cc: xen-devel, Wei Liu On Mon, Feb 17, 2014 at 01:27:57PM +0400, Vasiliy Tolstov wrote: > Update info: > If i from dom0 do xl mem-set XXX maxmem, domU can balloon up/down fine. > What is the difference between 4.1 and 4.3 in this case? > I don't quite know the difference between 4.1 and 4.3 off the top of my head. 4.1 is too old for me. I think I've seen this before. The root cause is that xl (now) always caps maxmem to memory when building a domain but never raises it to the real maxmem set in config file. It's a matter of turning a parameter from "true" to "false" in source code, but it's not exposed to users at the moment. If you're interested, have a look at libxl/xl_cmdimpl.c:2683. The "enforce" parameter to libxl_set_memory_target is always set to 1. Daniel posted a series of patch to fix that behavior but it wasn't merged. It's too late to fix that for 4.5. We can revisit that series during next development cycle if we have time. http://lists.xenproject.org/archives/html/xen-devel/2013-04/msg03072.html Wei. > 2014-02-14 22:12 GMT+04:00 Vasiliy Tolstov <v.tolstov@selfip.ru>: > > 2014-02-14 20:34 GMT+04:00 Wei Liu <wei.liu2@citrix.com>: > >> My gut feeling is nothing is wrong with Xen. It's just that you have a > >> typo in your config file. :-) > >> > >> Wei. > > > > No, if i have error in config domain can't start. You known that. > > my config is: > > > > name="21-10918" > > kernel="/var/storage/kernel/debian/6/kernel-64" > > ramdisk="/var/storage/kernel/ramdisk-64" > > vif=["mac=00:16:3e:00:2c:63,ip=62.76.185.64"] > > disk=["phy:/dev/disk/vbd/21-916,xvda,w"] > > memory=512 > > maxmem=1024 > > vcpus=3 > > maxvcpus=3 > > cpu_cap=300 > > cpu_weight=256 > > vfb=["type=vnc,vnclisten=0.0.0.0,vncpasswd=7QOG1885y3"] > > extra="root=/dev/xvda1 selinux=1 enforcing=0 iommu=off swiotlb=off > > earlyprintk=xen console=hvc0" > > on_restart="destroy" > > cpuid="host,x2apic=0,aes=0,xsave=0,avx=0" > > device_model_version="qemu-xen" > > device_model_override="/usr/bin/qemu-system-x86_64" > > > > -- > > Vasiliy Tolstov, > > e-mail: v.tolstov@selfip.ru > > jabber: vase@selfip.ru > > > > -- > Vasiliy Tolstov, > e-mail: v.tolstov@selfip.ru > jabber: vase@selfip.ru ^ permalink raw reply [flat|nested] 21+ messages in thread
end of thread, other threads:[~2014-02-21 14:28 UTC | newest] Thread overview: 21+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2014-02-14 14:46 xen 4.3.2 rc1 memory ballooning Vasiliy Tolstov 2014-02-14 14:55 ` Vasiliy Tolstov 2014-02-14 16:34 ` Wei Liu 2014-02-14 18:12 ` Vasiliy Tolstov 2014-02-17 9:27 ` Vasiliy Tolstov 2014-02-17 10:19 ` Daniel Kiper 2014-02-17 10:25 ` Vasiliy Tolstov 2014-02-17 10:56 ` Daniel Kiper 2014-02-19 11:47 ` Vasiliy Tolstov 2014-02-20 19:07 ` Daniel Kiper 2014-02-21 2:52 ` Vasiliy Tolstov 2014-02-21 9:53 ` Wei Liu 2014-02-21 9:59 ` Vasiliy Tolstov 2014-02-21 10:39 ` Wei Liu 2014-02-21 10:44 ` Vasiliy Tolstov 2014-02-21 10:56 ` Wei Liu 2014-02-21 11:30 ` Vasiliy Tolstov 2014-02-21 11:35 ` Wei Liu 2014-02-21 11:40 ` Vasiliy Tolstov 2014-02-21 14:28 ` Daniel Kiper 2014-02-17 10:32 ` Wei Liu
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.