10:08 a.m.
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Hi,
I'm using a channel device between host and guest to exchange datas every 2=
0 seconds.
On the Guest size , there is an open /dev/virtio file on which we read cont=
inuously what's
sent by the host.
My question is the following :
When migrating the Guest to another host , and the migrating back to the f=
irst one ,
the Guest software doesn't receive anymore datas from the host unless I res=
tart the Guest software to re-open the /dev/virtio file.
Is there any way to detect in the Guest that migration has been done so we =
have to reopen the file ?
Any hint is welcome .
Thanks for help.
J.P. Ribeauville
P: +33.(0).1.47.17.20.49
.
Puteaux 3 Etage 5 Bureau 4
jpribeauville@axway.com<mailto:jpribeauville@axway.com>
http://www.axway.com<http://www.axway.com/>
P Pensez =E0 l'environnement avant d'imprimer.
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<p class=3D"MsoNormal"><span
lang=3D"EN-US">Hi,<o:p></o:p
</span></p>
<p
class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p</span></p>
<p
class=3D"MsoNormal"><span lang=3D"EN-US">I’m using
a channel devic=
e between host and guest to exchange datas every 20
seconds.<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p</span></p>
<p
class=3D"MsoNormal"><span lang=3D"EN-US">On the Guest size ,
there is an=
open /dev/virtio file on which we read continuously what’s
<br>
sent by the host.<o:p></o:p</span></p>
<p
class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p</span></p>
<p
class=3D"MsoNormal"><span lang=3D"EN-US">My question is the
following : =
<o:p></o:p</span></p>
<p
class=3D"MsoNormal"><span lang=3D"EN-US">When migrating the
Guest to ano=
ther host , and the migrating back to the first one ,
<br>
the Guest software doesn’t receive anymore datas from the host unless=
I restart the Guest software to re-open the /dev/virtio
file.<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p</span></p>
<p
class=3D"MsoNormal"><span lang=3D"EN-US">Is there any way to
detect in t=
he Guest that migration has been done so we have to reopen the file ?=
<o:p></o:p</span></p>
<p
class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p</span></p>
<p
class=3D"MsoNormal"><span lang=3D"EN-US">Any hint is welcome
.<o:p></o:p=
</span></p>
<p
class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p</span></p>
<p
class=3D"MsoNormal"><span lang=3D"EN-US">Thanks for
help.<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p</span></p>
<table
class=3D"MsoNormalTable" border=3D"0" cellspacing=3D"0"
cellpadding=
=3D"0">
<tbody>
<tr>
<td valign=3D"top" style=3D"padding:0cm 4.5pt 0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US"
style=3D"font-size:9.0pt;fon=
t-family:"Arial","sans-serif";color:#888888;mso-fareast=
-language:FR"><o:p> </o:p></span></b></p>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US"
style=3D"font-size:8.5pt;fon=
t-family:"Arial","sans-serif";color:#888888;mso-fareast=
-language:FR">J.P.
Ribeauville<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"
style=3D"font-size:8.5pt;font-f=
amily:"Arial","sans-serif";color:#737373;mso-fareast-la=
nguage:FR"><o:p> </o:p</span></p>
</td>
</tr>
<tr>
<td style=3D"padding:2.25pt 4.5pt 4.5pt 0cm">
<p class=3D"MsoNormal"><span
style=3D"font-size:8.5pt;font-family:"Ari=
al","sans-serif";color:red;mso-fareast-language:FR">P:
</span><span
style=3D"font-size:8.5pt;font-family:"Arial","s=
ans-serif";color:#737373;mso-fareast-language:FR">+33.(0).1.47.17.=
20.49</span><span
style=3D"font-size:8.5pt;font-family:"Arial",&q=
uot;sans-serif";color:#737373;mso-fareast-language:FR"><o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span
style=3D"font-size:8.5pt;font-family:"Ari=
al","sans-serif";color:#737373;mso-fareast-language:FR">.<o:=
p></o:p</span></p>
<p
class=3D"MsoNormal"><span
style=3D"font-size:8.5pt;font-family:"Ari=
al","sans-serif";color:#737373;mso-fareast-language:FR">Pute=
aux 3 Etage 5 Bureau 4<o:p></o:p</span></p>
<p
class=3D"MsoNormal"><span
style=3D"font-size:8.5pt;font-family:"Ari=
al","sans-serif";color:#737373;mso-fareast-language:FR"><o:p=
> </o:p</span></p>
<p
class=3D"MsoNormal"><u><span lang=3D"EN-US"
style=3D"font-size:9.0pt;col=
or:red;mso-fareast-language:FR"><a
href=3D"mailto:jpribeauville@axway.com">=
<span lang=3D"FR"
style=3D"color:blue">jpribeauville@axway.com</span></a></=
span></u><u><span
style=3D"font-size:9.0pt;color:red;mso-fareast-language:F=
R"><br>
</span></u><span
style=3D"font-size:9.0pt;color:red;mso-fareast-language:FR=
"><a href=3D"http://www.axway.com/"><span
style=3D"color:red">http://www.ax=
way.com</span></a><o:p></o:p</span></p>
<p
class=3D"MsoNormal"><span
style=3D"font-size:8.5pt;font-family:"Ari=
al","sans-serif";color:#737373;mso-fareast-language:FR"><o:p=
> </o:p</span></p>
</td>
</tr>
</tbody>
</table>
<p class=3D"MsoNormal"><span
style=3D"display:none;mso-fareast-language:FR"=
><o:p> </o:p</span></p>
<table
class=3D"MsoNormalTable" border=3D"0" cellspacing=3D"0"
cellpadding=
=3D"0">
<tbody>
<tr>
<td style=3D"padding:4.5pt 4.5pt 4.5pt 0cm">
<p class=3D"MsoNormal"><span
style=3D"font-size:18.0pt;font-family:Webdings=
;color:#888888;mso-fareast-language:FR">P</span><span
style=3D"font-size:8.=
0pt;font-family:"Arial","sans-serif";color:#888888;mso-=
fareast-language:FR"> Pensez =E0 l’environnement avant
d’i=
mprimer.</span><span
style=3D"font-size:8.0pt;font-family:"Arial"=
,"sans-serif";color:#888888;mso-fareast-language:FR"><o:p></o:p><=
/span></p>
</td>
</tr>
</tbody>
</table>
<p class=3D"MsoNormal"><span
style=3D"mso-fareast-language:FR"><o:p> <=
/o:p</span></p>
<p
class=3D"MsoNormal"><o:p> </o:p></p>
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