Subject: 2.6.34-rc2 fails to boot on powerpc

From: Sachin Sant <[email-masked]>
Date: Sat, 20 Mar 2010 22:05:54 +0530

2.6.34-rc2 fails to boot on number of PowerPC boxes. The boot
hangs with the following messages :

/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/sda5 
/dev/sda5: clean, 726435/3948544 files, 9655477/15773808 blocks
fsck succeeded. Mounting root device read-write.
Mounting root /dev/sda5
mount -o rw,acl,user_xattr -t ext3 /dev/sda5 /root
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda5): using internal journal
EXT3-fs (sda5): mounted filesystem with writeback data mode
mount: can't find /root/proc in /etc/fstab or /etc/mtab
/sbin/smart_agetty: can not determine 'console' speed

This problem seem to have started with 
2.6.34-rc1-git9 (352d4657b23fbd329efccc396000a549e0150907).
Haven't yet tried a git bisect. Boot log attached

Thanks
-Sachin

-- 

---------------------------------
Sachin Sant
IBM Linux Technology Center
India Systems and Technology Labs
Bangalore, India
---------------------------------

Using 0081e5dd bytes for initrd buffer
Please wait, loading kernel...
Allocated 00f00000 bytes for kernel @ 00d00000
   Elf64 kernel loaded...
Loading ramdisk...
ramdisk loaded 0081e5dd @ 034d0000
OF stdout device is: /vdevice/vty@30000000
Preparing to boot Linux version 2.6.34-rc1-git9-autotest (root@llm62) (gcc version 4.3.2 [gcc-4_3-branch revision 141291] (SUSE Linux) ) #1 SMP Sat Mar 20 07:30:22 IST 2010
Max number of cores passed to firmware: 0x0000000000000200
Calling ibm,client-architecture-support... done
command line: root=/dev/sda5 IDENT=1269051459 
memory layout at init:
  memory_limit : 0000000000000000 (16 MB aligned)
  alloc_bottom : 0000000003cf0000
  alloc_top    : 0000000008000000
  alloc_top_hi : 0000000008000000
  rmo_top      : 0000000008000000
  ram_top      : 0000000008000000
instantiating rtas at 0x00000000074e0000... done
boot cpu hw idx 0000000000000000
starting cpu hw idx 0000000000000002... done
copying OF device tree...
Building dt strings...
Building dt structure...
Device tree strings 0x0000000003d00000 -> 0x0000000003d015fa
Device tree struct  0x0000000003d10000 -> 0x0000000003d30000
Calling quiesce...
returning from prom_init
Phyp-dump disabled at boot time
Using pSeries machine description
Using 1TB segments
Found initrd at 0xc0000000034d0000:0xc000000003cee5dd
bootconsole [udbg0] enabled
Partition configured for 4 cpus.
CPU maps initialized for 2 threads per core
Starting Linux PPC64 #1 SMP Sat Mar 20 07:30:22 IST 2010
-----------------------------------------------------
ppc64_pft_size                = 0x1a
physicalMemorySize            = 0x100000000
htab_hash_mask                = 0x7ffff
-----------------------------------------------------
Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 2.6.34-rc1-git9-autotest (root@llm62) (gcc version 4.3.2 [gcc-4_3-branch revision 141291] (SUSE Linux) ) #1 SMP Sat Mar 20 07:30:22 IST 2010
[boot]0012 Setup Arch
EEH: No capable adapters found
PPC64 nvram contains 15360 bytes
Zone PFN ranges:
  DMA      0x00000000 -> 0x00010000
  Normal   empty
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    1: 0x00000000 -> 0x00010000
Could not find start_pfn for node 0
[boot]0015 Setup Done
PERCPU: Embedded 1 pages/cpu @c000000000e00000 s24744 r0 d40792 u262144
pcpu-alloc: s24744 r0 d40792 u262144 alloc=1*1048576
pcpu-alloc: [0] 0 1 2 3 
Built 2 zonelists in Node order, mobility grouping on.  Total pages: 65480
Policy zone: DMA
Kernel command line: root=/dev/sda5 IDENT=1269051459 
PID hash table entries: 4096 (order: -1, 32768 bytes)
freeing bootmem node 1
Memory: 4143168k/4194304k available (9408k kernel code, 51136k reserved, 2624k data, 1430k bss, 512k init)
SLUB: Genslabs=18, HWalign=128, Order=0-3, MinObjects=0, CPUs=4, Nodes=256
Hierarchical RCU implementation.
RCU-based detection of stalled CPUs is enabled.
NR_IRQS:512 nr_irqs:512
[boot]0020 XICS Init
[boot]0021 XICS Done
clocksource: timebase mult[7d0000] shift[22] registered
Console: colour dummy device 80x25
console [hvc0] enabled, bootconsole disabled
console [hvc0] enabled, bootconsole disabled
allocated 2621440 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
Security Framework initialized
SELinux:  Disabled at boot.
Dentry cache hash table entries: 524288 (order: 6, 4194304 bytes)
Inode-cache hash table entries: 262144 (order: 5, 2097152 bytes)
Mount-cache hash table entries: 4096
Initializing cgroup subsys ns
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys blkio
Processor 1 found.
Processor 2 found.
Processor 3 found.
Brought up 4 CPUs
NET: Registered protocol family 16
IBM eBus Device Driver
POWER6 performance monitor hardware support registered
PCI: Probing PCI hardware
bio: create slab <bio-0> at 0
vgaarb: loaded
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switching to clocksource timebase
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 2, 262144 bytes)
TCP established hash table entries: 131072 (order: 5, 2097152 bytes)
TCP bind hash table entries: 65536 (order: 5, 2097152 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
UDP hash table entries: 2048 (order: 1, 196608 bytes)
UDP-Lite hash table entries: 2048 (order: 1, 196608 bytes)
NET: Registered protocol family 1
Unpacking initramfs...
Freeing initrd memory: 8313k freed
IOMMU table initialized, virtual merging enabled
audit: initializing netlink socket (disabled)
type=2000 audit(1269051512.190:1): initialized
Kprobe smoke test started
Kprobe smoke test passed successfully
rcu-torture:--- Start of test: nreaders=8 nfakewriters=4 stat_interval=0 verbose=0 test_no_idle_hz=0 shuffle_interval=3 stutter=5 irqreader=1 fqs_duration=0 fqs_holdoff=0 fqs_stutter=3
HugeTLB registered 16 MB page size, pre-allocated 0 pages
HugeTLB registered 16 GB page size, pre-allocated 0 pages
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 8192 (order 0, 65536 bytes)
Btrfs loaded
msgmni has been set to 8108
alg: No test for stdrng (krng)
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
rpaphp: RPA HOT Plug PCI Controller Driver version: 0.1
Generic RTC Driver v1.07
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
pmac_zilog: 0.6 (Benjamin Herrenschmidt <[email-masked]>)
Uniform Multi-Platform E-IDE driver
ide-gd driver 1.18
IBM eHEA ethernet device driver (Release EHEA_0102)
ehea: eth0: Jumbo frames are disabled
ehea: eth0 -> logical port id #2
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
mice: PS/2 mouse device common for all mice
EDAC MC: Ver: 2.1.0 Mar 20 2010
usbcore: registered new interface driver hiddev
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
TCP cubic registered
NET: Registered protocol family 15
registered taskstats version 1
Freeing unused kernel memory: 512k freed
doing fast boot
SCSI subsystem initialized
ibmvscsi 30000002: SRP_VERSION: 16.a
scsi0 : IBM POWER Virtual SCSI Adapter 1.5.8
ibmvscsi 30000002: partner initialization complete
ibmvscsi 30000002: host srp version: 16.a, host partition VIO (1), OS 3, max io 1048576
ibmvscsi 30000002: fast_fail not supported in server
ibmvscsi 30000002: Client reserve enabled
ibmvscsi 30000002: sent SRP login
ibmvscsi 30000002: SRP_LOGIN succeeded
scsi 0:0:1:0: Direct-Access     AIX      VDASD            0001 PQ: 0 ANSI: 3
Creating device nodes with udev
udevd version 128 started
sd 0:0:1:0: [sda] 167772160 512-byte logical blocks: (85.8 GB/80.0 GiB)
sd 0:0:1:0: [sda] Write Protect is off
sd 0:0:1:0: [sda] Cache data unavailable
sd 0:0:1:0: [sda] Assuming drive cache: write through
sd 0:0:1:0: [sda] Cache data unavailable
sd 0:0:1:0: [sda] Assuming drive cache: write through
 sda: sda1 sda2 < sda5 > sda3 sda4
sd 0:0:1:0: [sda] Cache data unavailable
sd 0:0:1:0: [sda] Assuming drive cache: write through
sd 0:0:1:0: [sda] Attached SCSI disk
Boot logging started on /dev/hvc0(/dev/console) at Sat Mar 20 02:18:33 2010
resume device  not found (ignoring)
Waiting for device /dev/sda5 to appear:  ok
showconsole: Warning: the ioctl TIOCGDEV is not known by the kernel
fsck 1.41.9 (22-Aug-2009)
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/sda5 
/dev/sda5: clean, 726435/3948544 files, 9655477/15773808 blocks
fsck succeeded. Mounting root device read-write.
Mounting root /dev/sda5
mount -o rw,acl,user_xattr -t ext3 /dev/sda5 /root
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda5): using internal journal
EXT3-fs (sda5): mounted filesystem with writeback data mode
mount: can't find /root/proc in /etc/fstab or /etc/mtab
/sbin/smart_agetty: can not determine 'console' speed