From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juan Subject: read extended-info signature failed Date: Mon, 11 Apr 2011 16:54:39 -0300 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2053430960==" Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org --===============2053430960== Content-Type: multipart/alternative; boundary=0016e64805ae22ede604a0a9f2f9 --0016e64805ae22ede604a0a9f2f9 Content-Type: text/plain; charset=ISO-8859-1 Hi, I am new to the list although not really new to Xen - I would like to shoot you a quick one regarding the following message logged on xend.log: DEBUG (XendCheckpoint:200) restore:shadow=0x0, _static_max=0x201, _static_min=0x201, DEBUG (balloon:145) Balloon: 29722616 KiB free; need 525312; done. DEBUG (XendCheckpoint:217) [xc_restore]: /usr/lib64/xen/bin/xc_restore 22 2 1 2 0 0 0 INFO (XendCheckpoint:353) xc_domain_restore start: p2m_size = 20900 INFO (XendCheckpoint:353) *ERROR Internal error: read extended-info signature failed* INFO (XendCheckpoint:353) Restore exit with rc=1 DEBUG (XendDomainInfo:2189) XendDomainInfo.destroy: domid=2 ERROR (XendDomainInfo:2198) XendDomainInfo.destroy: xc.domain_destroy failed. Traceback (most recent call last): File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 2194, in destroy xc.domain_pause(self.domid) Error: (3, 'No such process') I have traced back the error to the following code snippet in tools/libxc/xc_linux_restore.c file ~ this is Xen 3.0.3, included in RHEL 5.5: /* Read first entry of P2M list, or extended-info signature (~0UL). */ if (!read_exact(io_fd, p2m_frame_list, sizeof(long))) { ERR("read extended-info signature failed"); goto out; } However, I am not sure under what circumstances that expression could return false & trigger the error message. Any hint will be greatly appreciated! Thanks! -- Juan --0016e64805ae22ede604a0a9f2f9 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi,

I am new to the list although not really new to Xen - I would li= ke to shoot you a quick one regarding the following message logged on xend.= log:

DEBUG = (XendCheckpoint:200) restore:shadow=3D0x0, _static_max=3D0x201, _static_min= =3D0x201,
<= font size=3D"1">DEBUG (= balloon:145) Balloon: 29722616 KiB free; need 525312; done. DEBUG = (XendCheckpoint:217) [xc_restore]: /usr/lib64/xen/bin/xc_restore 22 2 1 2 0= 0 0
INFO (XendChe= ckpoint:353) xc_domain_restore start: p2m_size =3D 20900
INFO (= XendCheckpoint:353) ERROR Internal error: read extended-info signature f= ailed
INFO (Xe= ndCheckpoint:353) Restore exit with rc=3D1
DEBUG = (XendDomainInfo:2189) XendDomainInfo.destroy: domid=3D2
ERROR (XendDomainInfo:2198) XendDomai= nInfo.destroy: xc.domain_destroy failed.
Traceb= ack (most recent call last):
=A0 File "/usr/lib64/python2.4/site-packages/xen/xend/XendD= omainInfo.py", line 2194, in destroy
=A0=A0= =A0 xc.domain_pause(self.domid)
Error: (3, 'No such process')

I have traced back the error to the following code = snippet in tools/libxc/xc_linux_restore.c file ~ this is Xen 3.0.3, include= d in RHEL 5.5:

=A0=A0=A0 /* Read first entry of P2M list, or extended-inf= o signature (~0UL). */
=A0=A0=A0 if (!read_exact(io_fd, p2m_frame_list, = sizeof(long))) {
=A0=A0=A0=A0=A0=A0=A0 ERR("read extended-info sign= ature failed");
=A0=A0=A0=A0=A0=A0=A0 goto out;
=A0=A0=A0 }

However,= I am not sure under what circumstances that expression could return false = & trigger the error message. Any hint will be greatly appreciated!
<= br>Thanks!

--
Juan

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