[Xen-devel] RE: xl create fail with qcow2 image sometimes

["Zhang, Yang Z" <yang.z.zhang@xxxxxxxxx>]

Sorry for the late reply :-). 
Here is the log from /var/log/message:
Nov 30 05:04:07 vt-nhm7 tapdisk2[8397]: I/O queue driver: lio
Nov 30 05:04:07 vt-nhm7 tapdisk2[8397]: received 'attach' message (uuid = 0)
Nov 30 05:04:07 vt-nhm7 tapdisk2[8397]: sending 'attach response' message (uuid 
= 0)
Nov 30 05:04:07 vt-nhm7 tapdisk2[8397]: received 'open' message (uuid = 0)
Nov 30 05:04:07 vt-nhm7 tapdisk2[8397]: QCOW: Opening 
/share/xvs/var/img.vmxCPL_MEM_29
Nov 30 05:04:07 vt-nhm7 tapdisk2[8397]: Unable to open 
/share/xvs/var/img.vmxCPL_MEM_29 (-2)
Nov 30 05:04:07 vt-nhm7 tapdisk2[8397]: sending 'error' message (uuid = 0)
Nov 30 05:04:07 vt-nhm7 xl: tap-err:tap_ctl_open: open failed, err -1
Nov 30 05:04:07 vt-nhm7 tapdisk2[8397]: received 'detach' message (uuid = 0)
Nov 30 05:04:07 vt-nhm7 tapdisk2[8397]: sending 'detach response' message (uuid 
= 0)

best regards
yang


> -----Original Message-----
> From: Daniel Stodden [mailto:daniel.stodden@xxxxxxxxxx]
> Sent: Wednesday, November 17, 2010 11:09 AM
> To: Zhang, Yang Z
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; Stefano Stabellini
> Subject: RE: xl create fail with qcow2 image sometimes
> 
> On Tue, 2010-11-16 at 21:54 -0500, Zhang, Yang Z wrote:
> > Hi Daniel, here the original mail.
> 
> Do you have syslog notice from tapdisk in /var/log around the time that
> happens?
> 
> -2 indicates ENOENT (no such file..)..
> 
> Daniel
> 
> > best regards
> > yang
> >
> >
> > > -----Original Message-----
> > > From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
> > > [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Zhang, Yang
> Z
> > > Sent: Wednesday, October 13, 2010 4:01 PM
> > > To: xen-devel@xxxxxxxxxxxxxxxxxxx
> > > Subject: [Xen-devel] xl create fail with qcow2 image sometimes
> > >
> > > Hi all
> > > I find use "xl create" to create guest with qcow2 image fails sometimes. 
> > > It
> > > shows the error:
> > > cannot add disk 0 to domain: -2
> > > libxl: error: libxl.c:896:libxl_destroy_device_model Couldn't find device
> model's
> > > pid: No such file or directory
> > > libxl: error: libxl.c:956:libxl_domain_destroy libxl_destroy_device_model
> failed
> > > for 21
> > >
> > > I use follow command to create qcow2 image.
> > > qemu-img-xen create -f qcow2 test.img -b
> /share/xvs/img/app/ia32e_SMP.img
> > >
> > > But sometimes it is successful to create guest.
> > > For example:
> > > I use qemu-img-xen to create two same images: test.qcow2 and
> test1.qcow2.
> > > Using same config file to create guest, it is successful with test.qcow2 
> > > but
> fail
> > > with test1.qcow2.
> > >
> > > The changeset i used is 22155. Anyone meet this issue? Or any suggestion?
> > >
> > >
> > >
> > >
> > > best regards
> > > yang
> > >
> > >
> > >
> > > _______________________________________________
> > > Xen-devel mailing list
> > > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > > http://lists.xensource.com/xen-devel
> 

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