From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shriram Rajagopalan Subject: Re: xl save -c issues with Windows 7 Ultimate Date: Thu, 5 May 2011 19:31:21 -0700 Message-ID: References: <1304427718.18845.103.camel@zakaz.uk.xensource.com> Reply-To: rshriram@cs.ubc.ca Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1024622865==" Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: AP Xen Cc: "xen-devel@lists.xensource.com" , Ian Campbell List-Id: xen-devel@lists.xenproject.org --===============1024622865== Content-Type: multipart/alternative; boundary=00032555505a6d4adf04a2924b1b --00032555505a6d4adf04a2924b1b Content-Type: text/plain; charset=ISO-8859-1 On Thu, May 5, 2011 at 2:01 PM, AP Xen wrote: > On Thu, May 5, 2011 at 7:42 AM, Shriram Rajagopalan > wrote: > > On Tue, May 3, 2011 at 2:17 PM, AP Xen wrote: > >> > >> On Tue, May 3, 2011 at 7:09 AM, Shriram Rajagopalan > > >> wrote: > >> > On Tue, May 3, 2011 at 6:01 AM, Ian Campbell > > >> > wrote: > >> >> > >> >> On Fri, 2011-04-29 at 20:28 +0100, AP Xen wrote: > >> >> > I am trying to do an "xl save -c" on a Windows 7 Ultimate domain > that > >> >> > will leave the domain running at the end of the save operation. > >> >> > >> >> Do you have pv drivers installed which support checkpoint suspends? > I'm > >> >> not sure if such a thing even exists for Windows. > >> >> > >> >> I'm also not entirely sure that checkpointing was ever supported for > >> >> HVM > >> >> domains without PV drivers (e.g. via emulated hibernation). Perhaps > the > >> >> Remus guys know? > >> >> > >> > Remus works with HVM domains via normal xenstore based suspend/resume. > >> > Only PV-HVM support is "disabled" for the moment. > >> >> > >> >> [...] > >> >> > At the end of this the domain is frozen. Is this a known issue? Any > >> >> > pointers as to how to debug this? Where does xl pipe its debug > >> >> > messages to? > >> >> > >> >> /var/log/xen/xl-.log. You can also do "xl -vvv " to > >> >> get some additional debug output. > >> >> > >> > Yes. the logs would be great. Also, by frozen, do you mean the domain > >> > remains > >> > in "suspended" state? or is Windows hung? > >> > >> Not sure what the difference between Windows being suspended and hung > >> is. Here is the xl list output: > >> Name ID Mem VCPUs State > >> Time(s) > >> Domain-0 0 2914 4 r----- > >> 1259.0 > >> win7 15 1019 2 ---ss- > >> 0.3 > >> > >> Here is the log: > >> Saving to win7chk new xl format (info 0x0/0x0/255) > >> libxl: debug: libxl_dom.c:378:libxl__domain_suspend_common_callback > >> Calling xc_domain_shutdown on HVM domain > >> libxl: debug: libxl_dom.c:438:libxl__domain_suspend_common_callback > >> wait for the guest to suspend > >> libxl: debug: libxl_dom.c:450:libxl__domain_suspend_common_callback > >> guest has suspended > >> xc: debug: outbuf_write: 4194304 > 90092@16687124 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: debug: outbuf_write: 4194304 > 4169716@12607500 > >> xc: detail: delta 9991ms, dom0 27%, target 0%, sent 863Mb/s, dirtied > >> 0Mb/s 0 pages > >> xc: detail: Total pages sent= 263168 (0.25x) > >> xc: detail: (of which 0 were fixups) > >> xc: detail: All memory is saved > >> xc: detail: Save exit rc=0 > >> libxl: debug: libxl_dom.c:534:libxl__domain_save_device_model Saving > >> device model state to /var/lib/xen/qemu-save.15 > >> libxl: debug: libxl_dom.c:546:libxl__domain_save_device_model Qemu > >> state is 7204 bytes > >> > >> > > Ok. I see a "HVM shutdown". But where is the resume? > > Going through the libxl code, one obvious difference I see between xl's > > implementation of save > > and the old xm implementation is, xl calls "xc_domain_unpause" while the > xm > > implementation > > calls xc_domain_resume. > > > > Just in case, have you tried the same with xm save -c ? > > shriram > > xm save -c doesn't seem to work at all. > > root@tubuntu:/etc/xen# xm save -c win7 win7chk > Error: Timeout waiting for domain 2 to suspend > > [2011-05-05 13:55:43 1615] DEBUG (XendCheckpoint:124) [xc_save]: > /usr/lib/xen/bin/xc_save 22 2 0 0 0 > [2011-05-05 13:55:43 1615] INFO (XendCheckpoint:423) xc_save: failed > to get the suspend evtchn port > [2011-05-05 13:55:43 1615] INFO (XendCheckpoint:423) > [2011-05-05 13:55:43 1615] DEBUG (XendCheckpoint:394) suspend > [2011-05-05 13:55:43 1615] DEBUG (XendCheckpoint:127) In > saveInputHandler suspend > [2011-05-05 13:55:43 1615] DEBUG (XendCheckpoint:129) Suspending 2 ... > [2011-05-05 13:55:43 1615] DEBUG (XendDomainInfo:524) > XendDomainInfo.shutdown(suspend) > [2011-05-05 13:55:43 1615] DEBUG (XendDomainInfo:1881) > XendDomainInfo.handleShutdownWatch > [2011-05-05 13:56:44 1615] DEBUG (XendDomainInfo:1881) > XendDomainInfo.handleShutdownWatch > [2011-05-05 13:56:44 1615] INFO (XendCheckpoint:423) xc: error: > Suspend request failed: Internal error > [2011-05-05 13:56:44 1615] INFO (XendCheckpoint:423) xc: error: Domain > appears not to have suspended: Internal error > [2011-05-05 13:56:44 1615] ERROR (XendCheckpoint:185) Save failed on > domain win7 (2) - resuming. > Traceback (most recent call last): > File "/usr/local/lib/python2.6/dist-packages/xen/xend/XendCheckpoint.py", > line 146, in save > forkHelper(cmd, fd, saveInputHandler, False) > File "/usr/local/lib/python2.6/dist-packages/xen/xend/XendCheckpoint.py", > line 395, in forkHelper > inputHandler(line, child.tochild) > File "/usr/local/lib/python2.6/dist-packages/xen/xend/XendCheckpoint.py", > line 131, in saveInputHandler > dominfo.waitForSuspend() > File "/usr/local/lib/python2.6/dist-packages/xen/xend/XendDomainInfo.py", > line 2998, in waitForSuspend > raise XendError(msg) > XendError: Timeout waiting for domain 2 to suspend > [2011-05-05 13:56:44 1615] DEBUG (XendDomainInfo:3135) > XendDomainInfo.resumeDomain(2) > > Any debug output from xen? "xm dmesg" shriram --00032555505a6d4adf04a2924b1b Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
On Thu, May 5, 2011 at 2:01 PM, AP Xen <apxeng@gmail.com> wrote:
On Thu, May 5, 2011 at 7:42 AM, Shriram R= ajagopalan <rshriram@cs.ubc.ca= > wrote:
> On Tue, May 3, 2011 at 2:17 PM, AP Xen <apxeng@gmail.com> wrote:
>>
>> On Tue, May 3, 2011 at 7:09 AM, Shriram Rajagopalan <rshriram@cs.ubc.ca>
>> wrote:
>> > On Tue, May 3, 2011 at 6:01 AM, Ian Campbell <Ian.Campbell@citrix.com>
>> > wrote:
>> >>
>> >> On Fri, 2011-04-29 at 20:28 +0100, AP Xen wrote:
>> >> > I am trying to do an "xl save -c" on a Win= dows 7 Ultimate domain that
>> >> > will leave the domain running at the end of the save= operation.
>> >>
>> >> Do you have pv drivers installed which support checkpoint= suspends? I'm
>> >> not sure if such a thing even exists for Windows.
>> >>
>> >> I'm also not entirely sure that checkpointing was eve= r supported for
>> >> HVM
>> >> domains without PV drivers (e.g. via emulated hibernation= ). Perhaps the
>> >> Remus guys know?
>> >>
>> > Remus works with HVM domains via normal xenstore based suspen= d/resume.
>> > Only PV-HVM support is "disabled" for the moment. >> >>
>> >> [...]
>> >> > At the end of this the domain is frozen. Is this a k= nown issue? Any
>> >> > pointers as to how to debug this? Where does xl pipe= its debug
>> >> > messages to?
>> >>
>> >> /var/log/xen/xl-<domname>.log. You can also do &quo= t;xl -vvv <command>" to
>> >> get some additional debug output.
>> >>
>> > Yes. the logs would be great. Also, by frozen, do you mean th= e domain
>> > remains
>> > in "suspended" state? or is Windows hung?
>>
>> Not sure what the difference between Windows being suspended and h= ung
>> is. Here is the xl list output:
>> Name =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 = =A0 =A0 =A0 =A0 =A0ID =A0 Mem VCPUs =A0 =A0 =A0State
>> Time(s)
>> Domain-0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 = =A0 =A0 =A0 =A0 0 =A02914 =A0 =A0 4 =A0 =A0 r-----
>> =A01259.0
>> win7 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 = =A0 =A0 =A0 =A0 =A015 =A01019 =A0 =A0 2 =A0 =A0 ---ss-
>> =A0 0.3
>>
>> Here is the log:
>> Saving to win7chk new xl format (info 0x0/0x0/255)
>> libxl: debug: libxl_dom.c:378:libxl__domain_suspend_common_callbac= k
>> Calling xc_domain_shutdown on HVM domain
>> libxl: debug: libxl_dom.c:438:libxl__domain_suspend_common_callbac= k
>> wait for the guest to suspend
>> libxl: debug: libxl_dom.c:450:libxl__domain_suspend_common_callbac= k
>> guest has suspended
>> xc: debug: outbuf_write: 4194304 > 90092@16687124
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: debug: outbuf_write: 4194304 > 4169716@12607500
>> xc: detail: delta 9991ms, dom0 27%, target 0%, sent 863Mb/s, dirti= ed
>> 0Mb/s 0 pages
>> xc: detail: Total pages sent=3D 263168 (0.25x)
>> xc: detail: (of which 0 were fixups)
>> xc: detail: All memory is saved
>> xc: detail: Save exit rc=3D0
>> libxl: debug: libxl_dom.c:534:libxl__domain_save_device_model Savi= ng
>> device model state to /var/lib/xen/qemu-save.15
>> libxl: debug: libxl_dom.c:546:libxl__domain_save_device_model Qemu=
>> state is 7204 bytes
>>
>>
> Ok.=A0I see a "HVM shutdown". But where is the resume?
> Going through the libxl code, one obvious difference I see between xl&= #39;s
> implementation of save
> and the old xm implementation is, xl calls "xc_domain_unpause&quo= t; while the xm
> implementation
> calls xc_domain_resume.
>
> Just in case, have you tried the same with xm save -c ?
> shriram

xm save -c doesn't seem to work at all.

root@tubuntu:/etc/xen# xm save -c win7 win7chk
Error: Timeout waiting for domain 2 to suspend

[2011-05-05 13:55:43 1615] DEBUG (XendCheckpoint:124) [xc_save]:
/usr/lib/xen/bin/xc_save 22 2 0 0 0
[2011-05-05 13:55:43 1615] INFO (XendCheckpoint:423) xc_save: failed
to get the suspend evtchn port
[2011-05-05 13:55:43 1615] INFO (XendCheckpoint:423)
[2011-05-05 13:55:43 1615] DEBUG (XendCheckpoint:394) suspend
[2011-05-05 13:55:43 1615] DEBUG (XendCheckpoint:127) In
saveInputHandler suspend
[2011-05-05 13:55:43 1615] DEBUG (XendCheckpoint:129) Suspending 2 ...
[2011-05-05 13:55:43 1615] DEBUG (XendDomainInfo:524)
XendDomainInfo.shutdown(suspend)
[2011-05-05 13:55:43 1615] DEBUG (XendDomainInfo:1881)
XendDomainInfo.handleShutdownWatch
[2011-05-05 13:56:44 1615] DEBUG (XendDomainInfo:1881)
XendDomainInfo.handleShutdownWatch
[2011-05-05 13:56:44 1615] INFO (XendCheckpoint:423) xc: error:
Suspend request failed: Internal error
[2011-05-05 13:56:44 1615] INFO (XendCheckpoint:423) xc: error: Domain
appears not to have suspended: Internal error
[2011-05-05 13:56:44 1615] ERROR (XendCheckpoint:185) Save failed on
domain win7 (2) - resuming.
Traceback (most recent call last):
=A0File "/usr/local/lib/python2.6/dist-packages/xen/xend/XendCheckpoi= nt.py",
line 146, in save
=A0 =A0forkHelper(cmd, fd, saveInputHandler, False)
=A0File "/usr/local/lib/python2.6/dist-packages/xen/xend/XendCheckpoi= nt.py",
line 395, in forkHelper
=A0 =A0inputHandler(line, child.tochild)
=A0File "/usr/local/lib/python2.6/dist-packages/xen/xend/XendCheckpoi= nt.py",
line 131, in saveInputHandler
=A0 =A0dominfo.waitForSuspend()
=A0File "/usr/local/lib/python2.6/dist-packages/xen/xend/XendDomainIn= fo.py",
line 2998, in waitForSuspend
=A0 =A0raise XendError(msg)
XendError: Timeout waiting for domain 2 to suspend
[2011-05-05 13:56:44 1615] DEBUG (XendDomainInfo:3135)
XendDomainInfo.resumeDomain(2)

Any debug output from xen? "xm dmesg"
=A0
shriram
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