[Xen-devel] Re: Xen V1.1 release candidate

[Guillaume Thouvenin <guillaume.thouvenin@xxxxxxxxxx>]

Selon Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>:
 
> You need to make sure you're using the xi_* tools that go with
> the appropriate Xen / Xenolinux version. There were significant
> changes between 1.0 and 1.1 that require the tools to be
> upgraded. I'm afraid there's currently no version checking, so
> it's quite possible that Xen will fault and die.
> 
> Please can you retry with matching tools and let us know what
> happens.

So I compile new xen and xenolinux images with the matching tools and I have
some troubles. When I boot the first time with new kernels, the boot frozen
after enabling the Real Time Clock Driver. So I removed it from the kernel and
everything went fine. I don't know if this driver is a problem. I will make a
new try with "Enhanced Real Time Clock Support" enable in the kernel...

Another problem occures when I try to start a new domain. I receive a kernel
panic during the boot. I use the following /etc/xenctl.xml file:

--------------------------------------------------
xenohost2:~# cat /etc/xenctl.xml
<?xml version="1.0"?>
<domctl_defaults>
<domain_name>XenoLinuxDeb</domain_name>
<domain_size_kb>98304</domain_size_kb>
<domain_image>/boot/xenolinux11.gz</domain_image>
<domain_vifs>1</domain_vifs>
<root_device>/dev/hda5</root_device>
<root_args>rw</root_args>
<args>4 DOMID=+</args>
<nw_ip>169.254.1.0+</nw_ip>
<nw_gw>169.254.1.0</nw_gw>
<nw_mask>255.255.0.0</nw_mask>
<nw_nfs_server>169.254.1.0</nw_nfs_server>
<max_domain_number>1000</max_domain_number>
<xi_tools_dir>/usr/local/bin/</xi_tools_dir>
</domctl_defaults>
--------------------------------------------------------

And when I use the command "xenctl script -f/etc/xen-mynewdom" I have the
following output:

--------------------------------------------------------
Domain defaults:
   name            XenoLinuxDeb
   size            98304
   vifs            1
   domainImage     /boot/xenolinux11.gz
   domainInitRD    null
   rootDevice      /dev/hda5
   rootArgs        rw
   usrDevice       null
   NWIP            169.254.1.0+
   NWGW            169.254.1.0
   NWMask          255.255.0.0
   MaxDomainNumber 1000
   NWNFSServer     169.254.1.0
   NWNFSRoot       null
   XIToolsDir      /usr/local/bin/
   args            4 DOMID=+
Domain created with arguments:
/usr/local/bin/xi_create 98304 XenoLinuxDeb 
Domain built with arguments:
/usr/local/bin/xi_build 5 /tmp/xen-image-28237.tmp 1
ip=169.254.1.5:169.254.1.0:169.254.1.0:255.255.0.0::eth0:off 4 DOMID=5 
root=/dev/hda5 rw   
VIF 0 initialized with arguments:
/usr/local/bin/xi_vifinit 5 0 169.254.1.5 
Granted physical access to domain 5
Started domain 5
--------------------------------------------------------

And in the console I can see :

--------------------------------------------------------
[5] xen_console_init
[5] Linux version 2.4.22-xeno (guill@xenohost1) (gcc version 3.3.2 (Debian)) #1
Wed Nov 5 14:55:42 CET 2003
[5] On node 0 totalpages: 24576
[5] zone(0): 4096 pages.
[5] zone(1): 20480 pages.
[5] zone(2): 0 pages.
[5] Kernel command line:
ip=169.254.1.5:169.254.1.0:169.254.1.0:255.255.0.0::eth0:off 4 DOMID=5 
root=/dev/hda5 rw   
[5] Initializing CPU#0
[5] Xen reported: 666.692 MHz processor.
[5] Calibrating delay loop... 2287.20 BogoMIPS
[5] Memory: 95440k/98304k available (1136k kernel code, 2864k reserved, 210k
data, 44k init, 0k highmem)
[5] Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
[5] Inode cache hash table entries: 8192 (order: 4, 65536 bytes)
[5] Mount cache hash table entries: 512 (order: 0, 4096 bytes)
[5] Buffer cache hash table entries: 4096 (order: 2, 16384 bytes)
[5] Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
[5] CPU: L1 I cache: 16K, L1 D cache: 16K
[5] CPU: L2 cache: 256K
[5] CPU: Intel Pentium III (Coppermine) stepping 06
[5] POSIX conformance testing by UNIFIX
[5] Linux NET4.0 for Linux 2.4
[5] Based upon Swansea University Computer Society NET3.039
[5] Initializing RT netlink socket
[5] Starting kswapd
[5] Journalled Block Device driver loaded
[5] Installing knfsd (copyright (C) 1996 okir@xxxxxxxxxxxx).
[5] Xeno console successfully installed
[5] Starting Xeno Balloon driver
[5] pty: 256 Unix98 ptys configured
[5] Serial driver version 5.05c (2001-07-08) with no serial options enabled
[5] ttyS00 at 0x03f8 (irq = 4) is a 16550A
[5] ttyS01 at 0x02f8 (irq = 3) is a 16550A
[5] Partition check:
[5]  hda:Bad return from blkdev data request: 1
[5] Bad return from blkdev data request: 1
[5]  unable to read partition table
[5] Skipping partition check on cdrom /dev/hdc
[5] XenoLinux Virtual Segment Device Driver installed [device: 125]
[5] NET4: Linux TCP/IP 1.0 for NET4.0
[5] IP Protocols: ICMP, UDP, TCP, IGMP
[5] IP: routing cache hash table of 512 buckets, 4Kbytes
[5] TCP: Hash tables configured (established 8192 bind 16384)
[5] ip_conntrack version 2.1 (768 buckets, 6144 max) - 292 bytes per conntrack
[5] ip_tables: (C) 2000-2002 Netfilter core team
[5] NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
[5] root_device_name = hda5
[5] Bad return from blkdev data request: 1
[5] EXT3-fs: unable to read superblock
[5] Bad return from blkdev data request: 1
[5] EXT2-fs: unable to read superblock
[5] Bad return from blkdev data request: 1
[5] isofs_read_super: bread failed, dev=03:05, iso_blknum=16, block=32
[5] Kernel panic: VFS: Unable to mount root fs on 03:05
--------------------------------------------------------

I don't know when the partition is checked there is an error because it works
fine during the boot of domain_0 as I can see with dmesg output:

--------------------------------------------------------
xenohost2:~# dmesg 
Linux version 2.4.22-xeno (guill@xenohost1) (gcc version 3.3.2 (Debian)) #1 Wed
Nov 5 14:55:42 CET 2003
On node 0 totalpages: 25000
zone(0): 4096 pages.
zone(1): 20904 pages.
zone(2): 0 pages.
Kernel command line: /xenolinux11.gz root=/dev/hda6 console=tty0
Initializing CPU#0
Xen reported: 666.692 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 2660.76 BogoMIPS
Memory: 97108k/100000k available (1136k kernel code, 2892k reserved, 210k data,
44k init, 0k highmem)
Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
CPU: Before vendor init, caps: 0387fbff 00000000 00000000, vendor = 0
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
CPU: After vendor init, caps: 0387fbff 00000000 00000000 00000000
CPU:     After generic, caps: 0387fbff 00000000 00000000 00000000
CPU:             Common caps: 0387fbff 00000000 00000000 00000000
CPU: Intel Pentium III (Coppermine) stepping 06
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@xxxxxxxxxxxx).
Xeno console successfully installed
Successfully installed virtual firewall/router interface
Starting Xeno Balloon driver
Detected PS/2 Mouse Port.
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with no serial options enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
Partition check:
 hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 hda8 hda9 hda10 >
Skipping partition check on cdrom /dev/hdc
XenoLinux Virtual Segment Device Driver installed [device: 125]
...
<after, boot sequence is ok>
--------------------------------------------------------

So I will try to found what is going wrong. I don't know if the new domain
access to hardware via domain_0 or if it can access through the hypervisor
because here it seems that my new domain is not allow to access /dev/hda...

Guillaume


-------------------------------------------------------
This SF.net email is sponsored by: SF.net Giveback Program.
Does SourceForge.net help you be more productive?  Does it
help you create better code?   SHARE THE LOVE, and help us help
YOU!  Click Here: http://sourceforge.net/donate/
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/xen-devel