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[Xen-devel] can't boot from iso on cifs mount



After switching from xm to xl i found that all my windows hvm domU
can't boot from iso. domU can't boot is iso on cifs mount point. If
that iso move from cifs to ramdisk - all work's fine.

cifs mount:
//cc/public on /var/storage type cifs
(rw,relatime,vers=1.0,sec=ntlm,cache=none,unc=\\cc\public,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.25.254,unix,posixpaths,serverino,acl,rsize=1048576,wsize=65536,actimeo=1)

xl messages contains:
Using file /dev/disk/vbd/21-822 in read-write mode
Strip off blktap sub-type prefix to
/var/storage/iso/SW_DVD5_Windows_Svr_DC_EE_SE_Web_2008_R2_64Bit_Russian_w_SP1_MLF_X17-22616_vase.iso
(drv 'aio')
Using file 
/var/storage/iso/SW_DVD5_Windows_Svr_DC_EE_SE_Web_2008_R2_64Bit_Russian_w_SP1_MLF_X17-22616_vase.iso
in read-only mode
qemu: could not open vbd '/local/domain/0/backend/qdisk/162/5632/mode'
or hard disk image
'/var/storage/iso/SW_DVD5_Windows_Svr_DC_EE_SE_Web_2008_R2_64Bit_Ru
ssian_w_SP1_MLF_X17-22616_vase.iso' (drv 'aio' format 'raw')

domain started with xl create /etc/empty \
-d \
name="21-10824" \
kernel="/usr/lib/xen/boot/hvmloader" \
builder="hvm" \
memory=768 \
vcpus=4 \
vif=["mac=00:16:3e:00:1a:e4,ip=62.76.190.208,type=paravirtualised"]
disk=["phy:/dev/disk/vbd/21-822,hda,w",
"file:/var/storage/iso/SW_DVD5_Windows_Svr_DC_EE_SE_Web_2008_R2_64Bit_Russian_w_SP1_MLF_X17-22616_vase.iso,hdc:cdrom,r",
"file:/var/storage/iso/winpe_amd64.iso,hdb,r,devtype=cdrom"] \
device_model="qemu-dm" \
boot="d" \
vnc=1 \
vnclisten="0.0.0.0" \
vncconsole=1 \
viridian=1 \
stdvga=1 \
videoram=16 \
localtime=1 \
vncpasswd="XYhTN4A4OU" \
serial="pty" \
xen_platform_pci=1 \
usbdevice="tablet" \
keymap="en-us" \
on_restart="destroy" \
boot="d"'

--
Vasiliy Tolstov,
Clodo.ru
e-mail: v.tolstov@xxxxxxxxx
jabber: vase@xxxxxxxxx

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