From mboxrd@z Thu Jan 1 00:00:00 1970 From: "herbert cland" Subject: Re: [TESTDAY] Test report Date: Mon, 27 Jan 2014 09:15:30 +0800 Message-ID: <201401270915284579998@gmail.com> References: <52DDA807.2050703@terremark.com>, , <52E191BB.7040904@terremark.com>, <20140124145840.GE12946@phenom.dumpdata.com>, <52E29827.7000001@terremark.com>, <52E2B9AB.6090103@terremark.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============7713829676248012366==" Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Don Slutz Cc: xen-devel List-Id: xen-devel@lists.xenproject.org This is a multi-part message in MIME format. --===============7713829676248012366== Content-Type: multipart/alternative; boundary="----=_001_NextPart016722406740_=----" This is a multi-part message in MIME format. ------=_001_NextPart016722406740_=---- Content-Type: text/plain; charset="utf-8" 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This a boring BUG which has a  long=20 history,  from xen 3.* ~ 4.4rc2, which is always occurred when g= uest=20 os is centos 6+,   as i know.
But it is very strange that only a=20 few guys mention  it and care it.
please read following links:
http://lists.xen.org/archives/html/xen-devel/2013-08/msg01315.html=20
http://xen.1045712.n5.nabble.com/xm-save-checkpoint-problem-td25= 19789.html=20
 
 
  
 
herbert cland
 
From: Don Slutz=
Date: 2014-01-25 03:06
CC: xen-devel@lists.xen.org
Subject: Re: [Xen-devel] [TESTDAY] Test=20 report
On 01/24/14 11:43, Don Slutz wrote:
On 01/24/14 09:58, Konrad Rzeszutek Wilk=20 wrote:
On Thu, Jan 23, 2014 at 05:03:39PM -0500, Don Slu=
tz wrote:

On 01/20/14 18:35, Konrad Rze=
szutek Wilk wrote:

Don Slutz <dslutz@verizon.com> wrote:

[snip]


WARNING: g.e. still in us=
e!
WARNING: g.e. still in use!
WARNING: g.e. still in use!
pm_op(): platform_pm_resume+0x0/0x50 returns -19
PM: Device i8042 failed to resume: error -19
INFO: task sadc:22164 blocked for more then 120 seconds.
"echo 0 >..."
INFO: task sadc:22164 blocked for more then 120 seconds.

[root@dcs-xen-54 ~]# xl des 17
[root@dcs-xen-54 ~]# xl restore -V
/big/xl-save/centos-6.4-x86_64.0.save


Not sure if this is expected or not.

I think Ian saw this with the 'fast-canc=
el' something resume but I might be incorrect. Did it work if you used xen=
d (you might have to configure it be enabled)?

I have not used xend/xe in a long time. =
 I did need to configure it.

Does not start:


# /etc/init.d/xend start
WARNING: Enabling the xend toolstack.
xend is deprecated and scheduled for removal. Please migrate
to another toolstack ASAP.
Traceback (most recent call last):
  File "/usr/sbin/xend", line 110, in <module>
    sys.exit(main())
  File "/usr/sbin/xend", line 91, in main
    start_blktapctrl()
  File "/usr/sbin/xend", line 77, in start_blktapctrl
    start_daemon("blktapctrl", "")
  File "/usr/sbin/xend", line 74, in start_daemon
    os.execvp(daemon, (daemon,) + args)
  File "/usr/lib64/python2.7/os.py", line 344, in execvp
    _execvpe(file, args)
  File "/usr/lib64/python2.7/os.py", line 380, in _execvpe
    func(fullname, *argrest)
OSError: [Errno 2] No such file or directory


How important is it to try this?

It tells us whether the issue is indeed =
with the 'fast-cancel' thing.

But, I do recall seeing a patch from Ian Jackson for this - I just
don't remember what it was called - it was posted here and perhaps
applying it would help?

I have not found a patch.  The bug=20 #30:


http://bugs.xenproject.org/xen/bug/30
Looks=20 to me like the issue I am seeing.  The Guest I was testing this on = is an=20 old kernel (as far as this bug) and so I would expect it might be=20 related.


Here is what I see that may link it to this:

From: Ian Campbell <Ian.Campbell@citrix.com>
To: Ian Jackson <Ian.Jackson@eu.citrix=
.com>
Cc: xen-devel@lists.xen.org
Subject: Re: [Xen-devel] 3.4.70+ kernel WARNING spew dysfunction on=
 failed migration
Date: Fri, 10 Jan 2014 10:26:31 +0000


...

Looks like RHEL4 (linux-2.6.9-89.0.16.E=
L kernel) doesn't have the
support for the new mode at all.

It would probably be wise to validate this under xend before chasing
red-herrings with xl.

Ian.

So I will continue the fight to get xend=20 running.

   -Don



Ah, now ha= ve xend=20 running, but still need to convert from an xl.cfg file to a=20 xmdomain.cfg...  Having not used xm in years, this will take a while.=  =20 The man page does not say how to build an hvm guest.

I did another = test=20 and Fedora 19 (x86_64) saved just fine.  So this looks to be bug=20 #30.

If I understand this all, this means that the older linux kern= els=20 will fail this way also if a migrate fails and the source guest is=20 restarted.

So, do I continue to get xend working, or just say it is= an=20 example of bug #30?

    -Don Slutz




    -Don Slutz


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