From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrii Anisov <andrii.anisov@globallogic.com>
Subject: Re: Restart domU failure (memory allocation issue)
Date: Fri, 14 Mar 2014 14:45:14 +0200
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>
> It seems that unmap will be done at the end of xc_dom_boot_image (see
> xc_dom_unmap_all).
> The latter function will go through the list of all mappings and close
> it one by one.
> You can add a print in xc_dom_unmap_one (tools/libxc/xc_dom_core.c) and
> check if you have the same number of print with xc_dom_pfn_to_ptr_retcount.


As I see xc_dom_unmap_all ends with munmap(), what actually unmaps pages
from process virtual memory space. But I have doubts if it is aware about
cross domain mapping and cares about it.

Andrii Anisov | Software Engineer
GlobalLogic
Kyiv, 03038, Protasov Business Park, M.Grinchenka, 2/1
P +38.044.492.9695x3664  M +380505738852  S andriyanisov
www.globallogic.com
<http://www.globallogic.com/>
http://www.globallogic.com/email_disclaimer.txt

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<div dir=3D"ltr"><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px =
0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-l=
eft-style:solid;padding-left:1ex">It seems that unmap will be done at the e=
nd of xc_dom_boot_image (see<br>
xc_dom_unmap_all).<br>The latter function will go through the list of all m=
appings and close<br>it one by one.<br>You can add a print in xc_dom_unmap_=
one (tools/libxc/xc_dom_core.c) and<br>check if you have the same number of=
 print with xc_dom_pfn_to_ptr_retcount.</blockquote>
<div class=3D"gmail_extra"><br></div><div class=3D"gmail_extra">As I see xc=
_dom_unmap_all ends with munmap(), what actually unmaps pages from process =
virtual memory space. But I have doubts if it is aware about cross domain m=
apping and cares about it.</div>
<div class=3D"gmail_extra"><div><font size=3D"-1"><br><span style=3D"vertic=
al-align:baseline;font-variant:normal;font-style:normal;font-size:12px;back=
ground-color:transparent;text-decoration:none;font-family:Arial;font-weight=
:bold">Andrii Anisov | Software Engineer</span><br>
<span style=3D"vertical-align:baseline;font-variant:normal;font-style:norma=
l;font-size:12px;background-color:transparent;text-decoration:none;font-fam=
ily:Arial;font-weight:normal">GlobalLogic</span></font><div><span style=3D"=
color:rgb(34,34,34);font-size:13px;background-color:rgb(255,255,255)"><font=
 face=3D"arial, helvetica, sans-serif">Kyiv, 03038, Protasov Business Park,=
 M.Grinchenka, 2/1</font></span><font face=3D"Arial" style=3D"color:rgb(34,=
34,34);font-size:13px;background-color:rgb(255,255,255)"><span style=3D"fon=
t-size:12px"><br>
</span></font><span style=3D"font-size:12px;vertical-align:baseline;font-va=
riant:normal;font-style:normal;background-color:transparent;text-decoration=
:none;font-family:Arial;font-weight:normal">P +38.044.492.9695x3664=A0 M +3=
80505738852 =A0S andriyanisov</span><br>
<a href=3D"http://www.globallogic.com/" style=3D"font-size:small" target=3D=
"_blank"><span style=3D"font-size:12px;font-family:Arial;color:rgb(17,85,20=
4);background-color:transparent;font-weight:normal;font-style:normal;font-v=
ariant:normal;text-decoration:underline;vertical-align:baseline">www.global=
logic.com</span></a><span style=3D"vertical-align:baseline;font-variant:nor=
mal;font-style:normal;font-size:12px;text-decoration:none;font-family:Arial=
;font-weight:normal;background-color:transparent"></span><br>
<a href=3D"http://www.globallogic.com/" style=3D"font-size:small" target=3D=
"_blank"><span style=3D"font-size:12px;font-family:Arial;color:rgb(17,85,20=
4);background-color:transparent;font-weight:normal;font-style:normal;font-v=
ariant:normal;text-decoration:underline;vertical-align:baseline"></span></a=
><br>
<span style=3D"font-size:11px;font-family:Arial;color:rgb(17,85,204);backgr=
ound-color:transparent;font-weight:normal;font-style:normal;font-variant:no=
rmal;text-decoration:underline;vertical-align:baseline"><a href=3D"http://w=
ww.globallogic.com/email_disclaimer.txt" style=3D"font-size:small" target=
=3D"_blank">http://www.globallogic.com/email_disclaimer.txt</a></span></div=
>
</div><br></div></div>

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