Here is the whole console log.
In the mean time I am attributing it to global warming.



CP I
100

Booting default
(2.6.32-573.8.1.el6.s390x)

Initializing cgroup subsys
cpuset

Initializing cgroup subsys
cpu

Linux version 2.6.32-573.8.1.el6.s390x (
mockbu...@s390-003.build.bos.redhat.com) (gcc version 4.4.7 20120313 (Red
Hat 4.4.7-16) (GCC
) ) #1 SMP Fri Sep 25 19:21:49 EDT
2015

setup: Linux is running as a z/VM guest operating system in 64-bit
mode
crashkernel=auto resulted in zero bytes of reserved
memory.

Zone PFN
ranges:

  DMA      0x00000000 ->
0x00080000

  Normal   0x00080000 ->
0x00080000

Movable zone start PFN for each
node

early_node_map[1] active PFN
ranges

    0: 0x00000000 ->
0x00080000

PERCPU: Embedded 12 pages/cpu @0000000002b00000 s19456 r8192 d21504
u65536
pcpu-alloc: s19456 r8192 d21504 u65536
alloc=16*4096

pcpu-alloc: [0] 00 [0] 01 [0] 02 [0] 03 [0] 04 [0] 05 [0] 06 [0]
07
pcpu-alloc: [0] 08 [0] 09 [0] 10 [0] 11 [0] 12 [0] 13 [0] 14 [0]
15
pcpu-alloc: [0] 16 [0] 17 [0] 18 [0] 19 [0] 20 [0] 21 [0] 22 [0]
23
pcpu-alloc: [0] 24 [0] 25 [0] 26 [0] 27 [0] 28 [0] 29 [0] 30 [0]
31
pcpu-alloc: [0] 32 [0] 33 [0] 34 [0] 35 [0] 36 [0] 37 [0] 38 [0]
39
pcpu-alloc: [0] 40 [0] 41 [0] 42 [0] 43 [0] 44 [0] 45 [0] 46 [0]
47
pcpu-alloc: [0] 48 [0] 49 [0] 50 [0] 51 [0] 52 [0] 53 [0] 54 [0]
55
pcpu-alloc: [0] 56 [0] 57 [0] 58 [0] 59 [0] 60 [0] 61 [0] 62 [0]
63



HOLDING   SCZVMLX2
Built 1 zonelists in Zone order, mobility grouping on.  Total pages:
517120
Kernel command line: root=/dev/disk/by-path/ccw-0.0.0100-part2 rd_NO_LUKS
LANG=en_US.UTF-8  KEYTABLE=us rd_NO_MD SYSFONT=latarcyrheb
-sun16  rd_DASD=0.0.0100 rd_NO_LVM rd_NO_DM
BOOT_IMAGE=0

PID hash table entries: 4096 (order: 3, 32768
bytes)

Dentry cache hash table entries: 262144 (order: 9, 2097152
bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576
bytes)
Memory: 2048224k/2097152k available (5118k kernel code, 0k reserved, 3531k
data, 260k init)
Write protected kernel read-only data: 0x100000 -
0x7fffff

Hierarchical RCU
implementation.

console [ttyS0]
enabled

allocated 8388608 bytes of
page_cgroup

please try 'cgroup_disable=memory' option if you don't want memory
cgroups
pid_max: default: 65536 minimum:
512

Security Framework
initialized

SELinux:
Initializing.

Mount-cache hash table entries:
256

Initializing cgroup subsys
ns

Initializing cgroup subsys
cpuacct

Initializing cgroup subsys
memory

Initializing cgroup subsys
devices

Initializing cgroup subsys
freezer

Initializing cgroup subsys
net_cls

Initializing cgroup subsys
blkio

Initializing cgroup subsys
perf_event

Initializing cgroup subsys
net_prio




HOLDING   SCZVMLX2
cpu: 1 configured CPUs, 0 standby
CPUs

cpu: Processor 0 started, address 0, identification
1B6ED6

Brought up 1
CPUs

devtmpfs:
initialized

regulator: core version
0.5

NET: Registered protocol family
16

bio: create slab <bio-0> at
0

NetLabel:
Initializing

NetLabel:  domain hash size =
128

NetLabel:  protocols = UNLABELED
CIPSOv4

NetLabel:  unlabeled traffic allowed by
default

Switching to clocksource
tod

NET: Registered protocol family
2

IP route cache hash table entries: 65536 (order: 7, 524288
bytes)
TCP established hash table entries: 65536 (order: 8, 1048576
bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576
bytes)

TCP: Hash tables configured (established 65536 bind
65536)

TCP reno
registered

NET: Registered protocol family
1

futex hash table entries: 4096 (order: 8, 1048576
bytes)

audit: initializing netlink socket
(disabled)

type=2000 audit(1450280489.672:1):
initialized

HugeTLB registered 1 MB page size, pre-allocated 0
pages

VFS: Disk quotas
dquot_6.5.2

Dquot-cache hash table entries: 512 (order 0, 4096
bytes)




HOLDING   SCZVMLX2
msgmni has been set to
4001

ksign: Installing public key
data

Loading
keyring

- Added public key
E5A322A2BCB59BD8

- User ID: Red Hat, Inc. (Kernel Module GPG
key)

- Added public key
D4A26C9CCD09BEDA

- User ID: Red Hat Enterprise Linux Driver Update Program <
secal...@redhat.com>
- Added public key
CB445E0DA3EA1F65

- User ID: Red Hat Enterprise Linux Driver Update Program (key 4) <
secal...@redhat.com>
Block layer SCSI generic (bsg) driver version 0.4 loaded (major
253)
io scheduler noop
registered

io scheduler anticipatory
registered

io scheduler deadline
registered

io scheduler cfq registered
(default)

brd: module
loaded

loop: module
loaded

cio: Channel measurement facility initialized using format extended (mode
autodetected)
GRE over IPv4 demultiplexor
driver

TCP cubic
registered

Initializing XFRM netlink
socket

NET: Registered protocol family
17

registered taskstats version
1

Initalizing network drop monitor
service

md: Waiting for all devices to be available before
autodetect

md: If you don't use raid, use
raid=noautodetect




HOLDING   SCZVMLX2
md: Autodetecting RAID
arrays.

md: Scanned 0 and added 0
devices.

md: autorun
...

md: ... autorun
DONE.

VFS: Cannot open root device "disk/by-path/ccw-0.0.0100-part2" or
unknown-block(0,0)
Please append a correct "root=" boot option; here are the available
partitions:
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)
CPU: 0 Not tainted 2.6.32-573.8.1.el6.s390x
#1

Process swapper (pid: 1, task: 000000007fe83370, ksp:
000000007fe8b958)

000000007fe8bd20 000000007fe8bca0 0000000000000002
0000000000000000

       000000007fe8bd40 000000007fe8bcb8 000000007fe8bcb8
00000000004f7108
       0000000000000011 0000000000000000 000000007eb63000
000003d281bb7da8
       000000000000000d 000000000000000c 000000007fe8bd10
0000000000000000
       0000000000000000 000000000010582c 000000007fe8bca0
000000007fe8bce0
Call
Trace:

([<000000000010572c>]
show_trace+0xe8/0x138)

 [<00000000004f6f42>]
panic+0xde/0x250

 [<00000000008744c2>]
mount_block_root+0x292/0x33c

 [<00000000008747d6>]
prepare_namespace+0x1e2/0x220

 [<0000000000873890>]
kernel_init+0x464/0x47c

 [<000000000010a746>]
kernel_thread_starter+0x6/0xc

 [<000000000010a740>]
kernel_thread_starter+0x0/0xc

HCPGIR450W CP entered; disabled wait PSW 00020001 80000000 00000000
001156BA







RUNNING   SCZVMLX2


On Wed, Dec 16, 2015 at 7:35 AM, Gregg Levine <gregg.drw...@gmail.com>
wrote:

> Hello!
> Actually Alan you're thinking of why hundreds of satellites ignored
> yesterday.
>
> Actually it looks like that penguin ignored the root setting for
> things. First time I've seen one that revolting.
>
> Is it possible to see the log entries before that first line?
> -----
> Gregg C Levine gregg.drw...@gmail.com
> "This signature fought the Time Wars, time and again."
>
>
> On Wed, Dec 16, 2015 at 10:19 AM, Alan Altmark <alan_altm...@us.ibm.com>
> wrote:
> > On Wednesday, 12/16/2015 at 02:48 GMT, Tom Huegel <tehue...@gmail.com>
> > wrote:
> >> Now the registered machine fails to boot, the other one works fine.
> >
> > A gamma ray collided with a 1 and knocked it over, turning it into a 0.
> > That's the only explanation I can think of.  I used to think it was
> > sunspots or coronal mass ejections, but I've moved on.
> >
> > Alan Altmark
> >
> > Senior Managing z/VM and Linux Consultant
> > Lab Services System z Delivery Practice
> > IBM Systems & Technology Group
> > ibm.com/systems/services/labservices
> > office: 607.429.3323
> > mobile; 607.321.7556
> > alan_altm...@us.ibm.com
> > IBM Endicott
> >
> > ----------------------------------------------------------------------
> > For LINUX-390 subscribe / signoff / archive access instructions,
> > send email to lists...@vm.marist.edu with the message: INFO LINUX-390
> or visit
> > http://www.marist.edu/htbin/wlvindex?LINUX-390
> > ----------------------------------------------------------------------
> > For more information on Linux on System z, visit
> > http://wiki.linuxvm.org/
>
> ----------------------------------------------------------------------
> For LINUX-390 subscribe / signoff / archive access instructions,
> send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or
> visit
> http://www.marist.edu/htbin/wlvindex?LINUX-390
> ----------------------------------------------------------------------
> For more information on Linux on System z, visit
> http://wiki.linuxvm.org/
>

----------------------------------------------------------------------
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----------------------------------------------------------------------
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