Xen devel - Nov 2011 - Low memory corruption - trap invalid opcode ip:7f5c688028b0 sp:7ffff97af848 error:0 in ld-2.11.2.so[7f5c687ef000+1e000]

My first message didn''t get to the list, so I am trying once more.

---------- Forwarded message ----------
From: anatoly techtonik <techtonik@gmail.com>
Date: Mon, Nov 14, 2011 at 5:46 PM
Subject: Low memory corruption - trap invalid opcode ip:7f5c688028b0
sp:7ffff97af848 error:0 in ld-2.11.2.so[7f5c687ef000+1e000]
To: xen-devel@lists.xensource.com


I was redirected here from this bug report in Debian against
''svn-buildpackage'' after I started getting ''Illegal
instruction'' error
after running ''svn-inject'' and similar command on a brand new
VM
instance for Debian Squeeze.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=646945#54

dmesg from VM
17067.210187] svn-inject[6026] trap invalid opcode ip:7f5c688028b0
sp:7ffff97af848 error:0 in ld-2.11.2.so[7f5c687ef000+1e000]


I am running Debian Squeeze 6.0.3 with this package:
Package: xen-hypervisor-4.0-amd64
State: installed
Version: 4.0.1-4

Guest is Debian Squeeze 6.0.3 as well.


How to fix my machine? Reinstallation doesn''t help.


P.S. http://wiki.xen.org/wiki/ReportingBugs says to look for more info
in "Host console output (perhaps including hypervisor debug key
output)", but doesn''t explain how to get into this console
P.P.S. But reporting link on http://www.xen.org/support/community.html is
broken

Please, CC.
--
anatoly t.


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

On Tue, 2011-11-29 at 17:54 +0000, anatoly techtonik
wrote:
> My first message didn''t get to the list, so I am trying once more.
> 
> ---------- Forwarded message ----------
> From: anatoly techtonik <techtonik@gmail.com>
> Date: Mon, Nov 14, 2011 at 5:46 PM
> Subject: Low memory corruption - trap invalid opcode ip:7f5c688028b0
> sp:7ffff97af848 error:0 in ld-2.11.2.so[7f5c687ef000+1e000]
> To: xen-devel@lists.xensource.com
> 
> 
> I was redirected here from this bug report in Debian against
> ''svn-buildpackage'' after I started getting
''Illegal instruction'' error
> after running ''svn-inject'' and similar command on a brand
new VM
> instance for Debian Squeeze.
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=646945#54
> 
> dmesg from VM
> 17067.210187] svn-inject[6026] trap invalid opcode ip:7f5c688028b0
> sp:7ffff97af848 error:0 in ld-2.11.2.so[7f5c687ef000+1e000]
This is more than likely the same issue as
http://bugs.debian.org/646549.

Ian.
> 
> 
> I am running Debian Squeeze 6.0.3 with this package:
> Package: xen-hypervisor-4.0-amd64
> State: installed
> Version: 4.0.1-4
> 
> Guest is Debian Squeeze 6.0.3 as well.
> 
> 
> How to fix my machine? Reinstallation doesn''t help.
> 
> 
> P.S. http://wiki.xen.org/wiki/ReportingBugs says to look for more info
> in "Host console output (perhaps including hypervisor debug key
> output)", but doesn''t explain how to get into this console
> P.P.S. But reporting link on http://www.xen.org/support/community.html
> is broken
> 
> Please, CC.
> --
> anatoly t.
> 
> 
>

On Thu, Dec 1, 2011 at 4:59 PM, Ian Campbell
<Ian.Campbell@citrix.com>wrote:
> On Tue, 2011-11-29 at 17:54 +0000, anatoly techtonik wrote:
> > My first message didn''t get to the list, so I am trying once
more.
> >
> > ---------- Forwarded message ----------
> > From: anatoly techtonik <techtonik@gmail.com>
> > Date: Mon, Nov 14, 2011 at 5:46 PM
> > Subject: Low memory corruption - trap invalid opcode ip:7f5c688028b0
> > sp:7ffff97af848 error:0 in ld-2.11.2.so[7f5c687ef000+1e000]
> > To: xen-devel@lists.xensource.com
> >
> >
> > I was redirected here from this bug report in Debian against
> > ''svn-buildpackage'' after I started getting
''Illegal instruction'' error
> > after running ''svn-inject'' and similar command on a
brand new VM
> > instance for Debian Squeeze.
> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=646945#54
> >
> > dmesg from VM
> > 17067.210187] svn-inject[6026] trap invalid opcode ip:7f5c688028b0
> > sp:7ffff97af848 error:0 in ld-2.11.2.so[7f5c687ef000+1e000]
>
> This is more than likely the same issue as
> http://bugs.debian.org/646549.

Thanks. The processor is the same Intel Xeon E31270, so I am going to
subscribe to this bug. In the meanwhile - is it possible to disable this
AVX somehow or find another workaround until it is fixed in Squeeze?
-- 
anatoly t.


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

On Thu, 2011-12-01 at 14:45 +0000, anatoly techtonik
wrote:
> On Thu, Dec 1, 2011 at 4:59 PM, Ian Campbell
<Ian.Campbell@citrix.com>
> wrote:
>         On Tue, 2011-11-29 at 17:54 +0000, anatoly techtonik wrote:
>         > My first message didn''t get to the list, so I am
trying once
>         more.
>         >
>         > ---------- Forwarded message ----------
>         > From: anatoly techtonik <techtonik@gmail.com>
>         > Date: Mon, Nov 14, 2011 at 5:46 PM
>         > Subject: Low memory corruption - trap invalid opcode
>         ip:7f5c688028b0
>         > sp:7ffff97af848 error:0 in ld-2.11.2.so[7f5c687ef000+1e000]
>         > To: xen-devel@lists.xensource.com
>         >
>         >
>         > I was redirected here from this bug report in Debian against
>         > ''svn-buildpackage'' after I started getting
''Illegal
>         instruction'' error
>         > after running ''svn-inject'' and similar
command on a brand
>         new VM
>         > instance for Debian Squeeze.
>         > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=646945#54
>         >
>         > dmesg from VM
>         > 17067.210187] svn-inject[6026] trap invalid opcode
>         ip:7f5c688028b0
>         > sp:7ffff97af848 error:0 in ld-2.11.2.so[7f5c687ef000+1e000]
>         
>         
>         This is more than likely the same issue as
>         http://bugs.debian.org/646549.
> 
> 
> Thanks. The processor is the same Intel Xeon E31270, so I am going to
> subscribe to this bug. In the meanwhile - is it possible to disable
> this AVX somehow or find another workaround until it is fixed in
> Squeeze? 
There is some additional information about the Xen-specific
manifestation of this bug in
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649349

One workaround is to use xsave=1 on your hypervisor command line, but
the cost is that you cannot migrate guests anymore.

Ian.