Fedora xen - Nov 2006 - 4gb seg fixup messages during boot; xen guest not booting

Hi list,

I have seen this topic written about on a number of sites but none of
the suggested fixed have worked for me.

I have a FC5 box with 1GB RAM and the latest xen-3.0.3-1.fc5 package as
well as kernel-xen0 and kernel-xenU-2.6.18-1.2239.fc5 installed.

I followed the install instructions at
http://www.fedoraproject.org/wiki/FedoraXenQuickstart to install Fedora
Core 4 as a xen guest and have booted into the xen0 kernel. My guest has
256 MB RAM.

Here''s the config:

kernel="/boot/vmlinuz-2.6.18-1.2239.fc5xenU"
memory = 256
name = "rawhide"
vif = [ '''', ''bridge=xenbr0'' ]
disk = [''file:/root/XEN/fedora.img,sda1,w'']
root = "/dev/sda1"
extra = "ro selinux=0 3"


When I type "xm create -c rawhide" in a KDE Konsole window, my guest
starts to boot but does not finish. I have tried adding "echo
''hwcap 0
nosegneg'' > /etc/ld.so.conf.d/libc6-xen.conf" as one web site
suggested.
No luck.

I tried adding vnc=1 and vnclisten="127.0.0.1" to my xen guest config
file but no luck.

I am logged in as root when I run xm. Here is the screen printout when I
boot my VM:

[root@localhost ~]# xm create -c rawhide
Using config file "/etc/xen/rawhide".
Started domain rawhide
Linux version 2.6.18-1.2239.fc5xenU
(brewbuilder@hs20-bc1-7.build.redhat.com) (gcc version 4.1.1 20060525
(Red Hat 4.1.1-1)) #1 SMP Fri Nov 10 14:15:41 EST 2006
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000010800000 (usable)
0MB HIGHMEM available.
264MB LOWMEM available.
Using x86 segment limits to approximate NX protection
Built 1 zonelists.  Total pages: 67584
Kernel command line:  root=/dev/sda1 ro selinux=0 3
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
CPU 0 irqstacks, hard=c06dd000 soft=c06bd000
PID hash table entries: 2048 (order: 11, 8192 bytes)
Xen reported: 1196.467 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Software IO TLB disabled
vmalloc area: d1000000-fb3fe000, maxmem 33ffe000
Memory: 255292k/270336k available (1719k kernel code, 6540k reserved,
633k data, 144k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode...
Ok.
calibrate_delay_direct() failed to get a good estimate for
loops_per_jiffy.
Probably due to long platform interrupts. Consider using "lpj=" boot
option.
Security Framework v1.0.0 initialized
SELinux:  Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 512
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
Checking ''hlt'' instruction... OK.
SMP alternatives: switching to UP code
Freeing SMP alternatives: 12k freed
Brought up 1 CPUs
Grant table initialized
NET: Registered protocol family 16
Brought up 1 CPUs
xen_mem: Initialising balloon driver.
NET: Registered protocol family 2
IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
TCP established hash table entries: 16384 (order: 6, 327680 bytes)
TCP bind hash table entries: 8192 (order: 5, 163840 bytes)
TCP: Hash tables configured (established 16384 bind 8192)
TCP reno registered
audit: initializing netlink socket (disabled)
audit(1163273992.613:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
ksign: Installing public key data
Loading keyring
- Added public key 481F17AAEB289250
- User ID: Red Hat, Inc. (Kernel Module GPG key)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
rtc: IRQ 8 is not free.
Non-volatile memory driver v1.2
RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize
Xen virtual console successfully installed as xvc0
Linux version 2.6.18-1.2239.fc5xenU
(brewbuilder@hs20-bc1-7.build.redhat.com) (gcc version 4.1.1 20060525
(Red Hat 4.1.1-1)) #1 SMP Fri Nov 10 14:15:41 EST 2006
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000010800000 (usable)
0MB HIGHMEM available.
264MB LOWMEM available.
Using x86 segment limits to approximate NX protection
Built 1 zonelists.  Total pages: 67584
Kernel command line:  root=/dev/sda1 ro selinux=0 3
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
CPU 0 irqstacks, hard=c06dd000 soft=c06bd000
PID hash table entries: 2048 (order: 11, 8192 bytes)
Xen reported: 1196.467 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Software IO TLB disabled
vmalloc area: d1000000-fb3fe000, maxmem 33ffe000
Memory: 255292k/270336k available (1719k kernel code, 6540k reserved,
633k data, 144k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode...
Ok.
calibrate_delay_direct() failed to get a good estimate for
loops_per_jiffy.
Probably due to long platform interrupts. Consider using "lpj=" boot
option.
Security Framework v1.0.0 initialized
SELinux:  Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 512
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
Checking ''hlt'' instruction... OK.
SMP alternatives: switching to UP code
Freeing SMP alternatives: 12k freed
Brought up 1 CPUs
Grant table initialized
NET: Registered protocol family 16
Brought up 1 CPUs
xen_mem: Initialising balloon driver.
NET: Registered protocol family 2
IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
TCP established hash table entries: 16384 (order: 6, 327680 bytes)
TCP bind hash table entries: 8192 (order: 5, 163840 bytes)
TCP: Hash tables configured (established 16384 bind 8192)
TCP reno registered
audit: initializing netlink socket (disabled)
audit(1163273992.613:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
ksign: Installing public key data
Loading keyring
- Added public key 481F17AAEB289250
- User ID: Red Hat, Inc. (Kernel Module GPG key)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
rtc: IRQ 8 is not free.
Non-volatile memory driver v1.2
RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize
Xen virtual console successfully installed as xvc0
Event-channel device installed.
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with
idebus=xx
Registering block device major 8
ide-floppy driver 0.99.newide
i8042.c: No controller found.
mice: PS/2 mouse device common for all mice
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
TCP bic registered
Initializing IPsec netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
Using IPI No-Shortcut mode
XENBUS: Device with no driver: device/vif/0
XENBUS: Device with no driver: device/vif/1
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 144k freed
Write protecting the kernel read-only data: 258k
4gb seg fixup, process init (pid 1), cs:ip 73:007a65e5
4gb seg fixup, process init (pid 1), cs:ip 73:0075184e
4gb seg fixup, process init (pid 1), cs:ip 73:007c199e
4gb seg fixup, process init (pid 1), cs:ip 73:00750554
4gb seg fixup, process init (pid 1), cs:ip 73:00750562
4gb seg fixup, process init (pid 1), cs:ip 73:007a6322
4gb seg fixup, process init (pid 1), cs:ip 73:0074ae9c
4gb seg fixup, process init (pid 1), cs:ip 73:007adeda
4gb seg fixup, process init (pid 1), cs:ip 73:0071527c
4gb seg fixup, process init (pid 1), cs:ip 73:00750554
modprobe: FATAL: Could not load
/lib/modules/2.6.18-1.2239.fc5xenU/modules.dep: No such file or
directory

INIT: version 2.85 booting
/etc/rc.d/rc.sysinit: line 78: /dev/tty1: Read-only file system
/etc/rc.d/rc.sysinit: line 78: /dev/tty2: Read-only file system
/etc/rc.d/rc.sysinit: line 78: /dev/tty3: Read-only file system
/etc/rc.d/rc.sysinit: line 78: /dev/tty4: Read-only file system
/etc/rc.d/rc.sysinit: line 78: /dev/tty5: Read-only file system
/etc/rc.d/rc.sysinit: line 78: /dev/tty6: Read-only file system
/etc/rc.d/rc.sysinit: line 82: /dev/tty7: Read-only file system
/etc/rc.d/rc.sysinit: line 83: /dev/tty8: Read-only file system
                Welcome to Fedora Core
                Press ''I'' to enter interactive startup.
Starting udev:[  OK  ]
Initializing hardware...  storage network audio done[  OK  ]
Setting clock : Sat Nov 11 14:40:07 EST 2006 [  OK  ]
Setting hostname localhost:  [  OK  ]
Checking filesystems
Checking all file systems.
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/sda1
/dev/sda1: clean, 26465/262656 files, 220368/524288 blocks
[  OK  ]
Remounting root filesystem in read-write mode:  [  OK  ]
Mounting local filesystems:  [  OK  ]
Enabling local filesystem quotas:  [  OK  ]
Enabling swap space:  [  OK  ]
INIT: Entering runlevel: 3
Entering non-interactive startup
Checking for new hardwaremodprobe: FATAL: Could not load
/lib/modules/2.6.18-1.2239.fc5xenU/modules.dep: No such file or
directory

modprobe: FATAL: Could not load
/lib/modules/2.6.18-1.2239.fc5xenU/modules.dep: No such file or
directory

modprobe: FATAL: Could not load
/lib/modules/2.6.18-1.2239.fc5xenU/modules.dep: No such file or
directory

mmap /dev/mem: Bad address
mmap /dev/mem: Bad address
modprobe: FATAL: Could not load
/lib/modules/2.6.18-1.2239.fc5xenU/modules.dep: No such file or
directory

 [  OK  ]
Starting pcmcia:  Starting PCMCIA services: FATAL: Could not load
/lib/modules/2.6.18-1.2239.fc5xenU/modules.dep: No such file or
directory
[FAILED]
Starting system logger: [  OK  ]
Starting kernel logger: [  OK  ]
Networking not configured - exiting
Can''t open RFCOMM control socket: Address family not supported by
protocol

Starting automount: printk: 571702 messages suppressed.
4gb seg fixup, process S28autofs (pid 543), cs:ip 73:0074cf6e
[  OK  ]
Starting cups: [  OK  ]
Starting sshd: [  OK  ]
Starting sendmail: [  OK  ]
Starting sm-client: [  OK  ]
Starting console mouse services: [  OK  ]
Starting crond: [  OK  ]
Starting anacron: [  OK  ]
Starting atd: [  OK  ]
Starting system message bus: [  OK  ]
Starting HAL daemon: [  OK  ]
printk: 446257 messages suppressed.
4gb seg fixup, process udevsend (pid 735), cs:ip 73:002eb5e5
printk: 574719 messages suppressed.
4gb seg fixup, process sendmail (pid 646), cs:ip 73:00382554
printk: 15 messages suppressed.

Any suggestions?

Thanks,

Job

On Sat, Nov 11, 2006, Job 317 wrote:
> Hi list,
> 
> I have seen this topic written about on a number of sites but none of
> the suggested fixed have worked for me.

You need to do one or more of this in the DomUs:

* do the nosegneg stuff as you''ve siad; but it doesn''t work
for me with Debian/Ubuntu
  guests for some reason (shrug, I haven''t looked into it that much)
* Install Xen-friendly (ie, nosegneg) libc libraries
* Make sure /lib/tls ain''t there.

I''ve deleted /lib/tls and rebooted; its quietened down substantially.
It''d be nice if the printk were disable''able somehow as it
really does seem
to stop things booting from time to time..



adrian

I''ve done all of that without success. Any other ideas?

I''ve renamed /lib/tls to /lib/tls.disabled and echo ''hwcap 0
nosegneg'' >
/etc/ld.so.conf.d/libc6-xen.conf

Behavior is still the same, makes the console unusable. This is FC5 with
all the latest updates.

On Sat, Nov 11, 2006, master@bradleyland.com wrote:
> I''ve done all of that without success. Any other ideas?
Hm, are these programs all compiled statically? I get a few things complaining
about
seg fixups (mostly nash-hotplug from the ramdisk image) but the above fixed it
for me.

I moved it from /lib/tls to /tls.{12345etc} just in case. It shouldn''t
pick up stuff
in /lib/* but who knows..

I also have to redo it all from time to time whenever debian/ubuntu update the
libc
packages.

It really would be nice if the printk was a run/boot time option, perhaps
something
quenchable via a boot parameter. Some of us want to run Xen with older, non-FC
domU''s and this kind of stuff just breaks it.



Adrian

Working now...

The solution was to create a file:

/etc/ld.so.conf.d/kernelcap-2.6.18-1.2200.fc5.conf

and put "hwcap 0 nosegneg" in it.

Nothing else worked. Been silent ever since.

This was from a prior suggestion from Dan that I overlooked.

On Sat, Nov 11, 2006, master@bradleyland.com wrote:
> Working now...
> 
> The solution was to create a file:
> 
> /etc/ld.so.conf.d/kernelcap-2.6.18-1.2200.fc5.conf
> 
> and put "hwcap 0 nosegneg" in it.
> 
> Nothing else worked. Been silent ever since.
Nice. Sorry, what was the domU platform again?



Adrian