WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

[Xen-users] Re: [Xen-devel] Dom0 reboot when several VM reboot at the sa

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: [Xen-users] Re: [Xen-devel] Dom0 reboot when several VM reboot at the same time
From: tsk <aixt2006@xxxxxxxxx>
Date: Thu, 1 Jul 2010 20:53:39 +0800
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>, Daniel Stodden <daniel.stodden@xxxxxxxxxx>
Delivery-date: Thu, 01 Jul 2010 05:55:30 -0700
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=Jarg+VmSwSbLpZFdy2mCvnSd6Cq7+CtqbqE/mPvL0rs=; b=hwCKCcB9jJ/bTUVxSbrwHxjdnr2PjVzDrWVeVPvsuXYK6+uA8IPkMaKjfWjywtDvDE O4/GdxAvdj07vzAiUObCvrzuzXrM0HPLh4eGtjwhg04kO0TXU0S/0iVGV7yDdJgxsESK Ci0Klf0aQuYV3ZEzV9gq8gPudyftHhdkUU2xY=
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=Di+d46PlU4l8iLP7x1g+Z+JcCR5Y99WdC2tOeUMnmMfVAQTK/SrmQbmj6PXirc59zy 0vwsFyx5nLPZHb1El6zNCdQY0HWWXbEmrjr5Ad9Tig2avyx8upwXGnFCBC5SboE8OKjO P+bieuNVYeFSWRW0lCoAYXkKOe4VSc2ilE7oo=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <4C2C6E5F.2090704@xxxxxxxx>
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
References: <AANLkTil-F0J0oWwU8tcoafx3eTWxkiyOLyJ4sD6QfWyM@xxxxxxxxxxxxxx> <4C26221E.7080205@xxxxxxxx> <AANLkTimL85bEM6pGMi5j1bU0xE7EO7tLa5nnf2Q6VdUd@xxxxxxxxxxxxxx> <4C29B8D1.2020402@xxxxxxxx> <AANLkTim0IKeN2dKEusWO2DCmUoicsCq3t00zjmg8qrIC@xxxxxxxxxxxxxx> <4C2C6E5F.2090704@xxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
The brittleness of tapdisk2 process is a very serious problem, Daniel Stodden said that patches will send soon. 
I hope Xen-4.1 will drive these problems away. But when will it be released?
I need it imperativily or I will make some patches.

tsk

在 2010年7月1日 下午6:30,Jeremy Fitzhardinge <jeremy@xxxxxxxx>写道:
On 07/01/2010 11:36 AM, tsk wrote:
> I modified the XendDomainInfo.py, add a lock in the _restart
> function, and sleep 20s after dom destroy.
>
> 6 VMs reboot almost 100 times, Dom0 and VMs are all OK.
>
> I guess it should be a problem of blktap2.

Yes, that's what I was suspecting. It seems to have had a series of
problems with shutdown, and a brittleness where the death of the tapdisk
process can bring down the system.

J

>
> Testcase have not be ran in 2.6.32.x yet.
>
>
> tsk
>
> 2010/6/29 Jeremy Fitzhardinge <jeremy@xxxxxxxx <mailto:jeremy@xxxxxxxx>>
>
>     On 06/28/2010 05:44 AM, tsk wrote:
>     > xm info:
>     >
>     > release : 2.6.31.13
>
>     Can you reproduce this with a xen/stable-2.6.32.x - based kernel?
>
>     J
>
>     > version : #3 SMP Fri Apr 30 15:10:24 CST 2010
>     > machine : x86_64
>     > nr_cpus : 16
>     > nr_nodes : 2
>     > cores_per_socket : 4
>     > threads_per_core : 2
>     > cpu_mhz : 2266
>     > hw_caps :
>     >
>     bfebfbff:28100800:00000000:00001b40:009ce3bd:00000000:00000001:00000000
>     > virt_caps : hvm
>     > total_memory : 24544
>     > free_memory : 19693
>     > node_to_cpu : node0:0,2,4,6,8,10,12,14
>     > node1:1,3,5,7,9,11,13,15
>     > node_to_memory : node0:7633
>     > node1:12059
>     > node_to_dma32_mem : node0:2996
>     > node1:0
>     > max_node_id : 1
>     > xen_major : 4
>     > xen_minor : 0
>     > xen_extra : .0
>     > 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 : console=com1,vga com1=115200,8n1 msi=1
>     > dom0_mem=6144M dom0_max_vcpus=4 dom0_vcpus_pin iommu=off x2apic=off
>     > hap=0
>     > cc_compiler : gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)
>     > cc_compile_by : root
>     > cc_compile_date : Wed May 12 19:09:47 CST 2010
>     > xend_config_format : 4
>     >
>     >
>     >
>     > tsk
>     >
>     > 2010/6/26 Jeremy Fitzhardinge <jeremy@xxxxxxxx
>     <mailto:jeremy@xxxxxxxx> <mailto:jeremy@xxxxxxxx
>     <mailto:jeremy@xxxxxxxx>>>
>     >
>     > On 06/25/2010 04:40 AM, tsk wrote:
>     > > Hi folks,
>     > >
>     > > I met a problem: when 6 VM reboot at the same time, 3:00 morning,
>     > > the Dom0 reboot it self:
>     > > Xen version is 4.0.0, VMs are windows 2003 with redhat pv,
>     they will
>     > > update and reboot itself every 3:00 AM.
>     > >
>     > > # last
>     > > ... ...
>     > > admin pts/0 10.247.1.1 Fri Jun 25 03:40 - 04:30
>     > > (00:50)
>     > > reboot system boot 2.6.31.13 Fri Jun 25 11:16
>     > > (00:-3)
>     > > admin pts/0 10.247.1.1 Fri Jun 18 03:30 - 03:31
>     > (00:01)
>     > > ... ...
>     > >
>     > > /var/log/xen/xend.log:
>     > > ... ...
>     > > [2010-06-25 03:10:41 4409] DEBUG (DevController:139) Waiting for
>     > > devices vif2.
>     > > [2010-06-25 03:10:41 4409] DEBUG (DevController:139) Waiting for
>     > > devices vif.
>     > > [2010-06-25 03:10:41 4409] DEBUG (DevController:144) Waiting
>     for 0.
>     > > [2010-06-25 03:10:41 4409] INFO (XendDomainInfo:2150) Domain has
>     > > shutdown: name=VM-4836078C.1515.21 id=8 reason=reboot.
>     > > [2010-06-25 03:10:41 4409] DEBUG (XendDomainInfo:3115)
>     > > XendDomainInfo.destroy: domid=8
>     > > [2010-06-25 03:10:41 4409] INFO (XendDomainInfo:2150) Domain has
>     > > shutdown: name=VM-4836078C.1515.21 id=8 reason=reboot.
>     > > [2010-06-25 03:10:41 4409] DEBUG (XendDomainInfo:1953)
>     > > XendDomainInfo.handleShutdownWatch
>     > > [2010-06-25 03:10:41 4409] DEBUG (DevController:628)
>     > > hotplugStatusCallback
>     > /local/domain/0/backend/vif/26/0/hotplug-status.
>     > > [2010-06-25 03:13:36 4401] INFO (SrvDaemon:332) Xend Daemon
>     started
>     > > [2010-06-25 03:13:36 4401] INFO (SrvDaemon:336) Xend changeset:
>     > > unavailable.
>     > > ... ...
>     > >
>     > >
>     > >
>     > > /var/log/messages:
>     > > ... ...
>     > > Jun 25 03:10:41 r21b02004 tapdisk2[16340]:
>     > > /guest/VM-420A07DA/disk10369/image.vhd: 4
>     > > Jun 25 03:10:41 r21b02004 kernel: blktap_ring_open: opening
>     > device blktap3
>     > > Jun 25 03:10:41 r21b02004 kernel: blktap_ring_open: opened
>     device 3
>     > > Jun 25 03:10:41 r21b02004 kernel: blktap_ring_mmap: blktap:
>     mapping
>     > > pid is 16340
>     > > Jun 25 03:10:41 r21b02004 kernel: blktap_validate_params:
>     > > vhd:/guest/VM-420A07DA/disk10369/image.vhd: capacity: 419430400,
>     > > sector-size: 512
>     > > Jun 25 03:10:41 r21b02004 kernel: blktap_validate_params:
>     > > vhd:/guest/VM-420A07DA/disk10369/image.vhd: capacity: 419430400,
>     > > sector-size: 512
>     > > Jun 25 03:10:41 r21b02004 kernel: blktap_device_create: minor 3
>     > > sectors 419430400 sector-size 512
>     > > Jun 25 03:10:41 r21b02004 kernel: blktap_device_create:
>     creation of
>     > > 252:3: 0
>     > > Jun 25 03:10:41 r21b02004 sshd[16414]: Did not receive
>     > identification
>     > > string from 10.247.10.51
>     > > Jun 25 03:10:41 r21b02004 kernel: device 001107 entered
>     > promiscuous mode
>     > > Jun 25 03:10:41 r21b02004 kernel: eth0: port 3(001107) entering
>     > > forwarding state
>     > > Jun 25 11:16:10 r21b02004 syslogd 1.4.1: restart.
>     > > ... ...
>     > >
>     > >
>     > > Can anyone give me some tips? Thanks!
>     >
>     > Which dom0 kernel are you using?
>     >
>     > J
>     >
>     >
>
>


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
<Prev in Thread] Current Thread [Next in Thread>