Xen users - Feb 2006 - AW: AW: Exporting Dom0 disks to DomU as SCSI disksdoesnot work

Hello,
> I am not able to understand this problem right away ,but SCSI 
> major number is 8 and i can see your kernel cribbing about 
> registering block device with  major number 8 when its 
> booting up,..just before it panics ....below , i have 
> separated it with equal to marks
Hm perhaps I should mention I don''t included any SCSI low-level driver
in my DomU, but for my understanding, this should also be no problem.
The DomU kernel doesn''t know anything about the underlying hardware and
I didn''t compile in physical hardware access, so I''m curios
about why
SCSI low-level is shown in menuconfig at all. Might this be a bug?

> can you paste the output for the successfull hda bootup ??
Yes, here it comes:

--- snip ---

Using config file "/etc/xen/test1".
Started domain test1
Linux version 2.6.12.6-xenU (root@sarge64) (gcc-Version 3.3.5 (Debian
1:3.3.5-13)) #2 SMP Fri Feb 10 17:02:40 CET 2006
kernel direct mapping tables upto 20800000 @ 4ac000-5b2000
Built 1 zonelists
Kernel command line:  root=/dev/hdb1 ro
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 131072 bytes)
Xen reported: 2992.692 MHz processor.
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Software IO TLB disabled
Memory: 509184k/532480k available (1564k kernel code, 22552k reserved,
587k data, 136k init)
Mount-cache hash table entries: 256
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 2048K
CPU: Physical Processor ID: 0
Brought up 1 CPUs
Grant table initialized
NET: Registered protocol family 16
xen_mem: Initialising balloon driver.
SCSI subsystem initialized
PCI: System does not support PCI
PCI: System does not support PCI
IA32 emulation $Id: sys_ia32.c,v 1.32 2002/03/24 13:02:28 ak Exp $
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Xen virtual console successfully installed as tty1
Event-channel device installed.
netfront: Initialising virtual ethernet driver.
NET: Registered protocol family 2
Registering block device major 3
IP: routing cache hash table of 2048 buckets, 32Kbytes
TCP established hash table entries: 131072 (order: 9, 2097152 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
INIT: version 2.86 booting
NET: Registered protocol family 1
Activating swap.
Adding 1048568k swap on /dev/hda1.  Priority:-1 extents:1
EXT3 FS on hdb1, internal journal
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access
method.
System time was Fri Feb 10 16:38:47 UTC 2006.
Setting the System Clock using the Hardware Clock as reference...
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access
method.
System Clock set. System local time is now Fri Feb 10 16:38:47 UTC 2006.
Cleaning up ifupdown...done.
Calculating module dependencies... done.
Loading modules...
All modules loaded.
Checking all file systems...
fsck 1.37 (21-Mar-2005)
Setting kernel variables ...
... done.
Mounting local filesystems...
Cleaning /tmp /var/run /var/lock.
Running 0dns-down to make sure resolv.conf is ok...done.
Setting up networking...done.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces...done.

Setting the System Clock using the Hardware Clock as reference...
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access
method.
System Clock set. Local time: Fri Feb 10 16:38:48 UTC 2006

Initializing random number generator...done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting MTA: exim4.
Starting internet superserver: inetd.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.

Debian GNU/Linux 3.1 test1 tty1

--- snap ---


Christian

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Hello again, 

> This is my 2.6.11-1.1360FC$4xenU as different from yours and it boots
> when physical devices are exported as SCSI, I am not a SCSI expert so
> wont be able to tell you why , try this and mail the result...I have
> also attached the file 
Meanwhile, I added SATA support to my DomU, but it still doesn''t work
:(
Someone else got an idea? Help is greatly appreciated.

Christian

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