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Why do the default images in the QorIQ Linux SDK v2.0 PPCE5500 IMAGE.iso result in a "init[1]: unhandled signal 4" when run on a T1040 with qemu-system-ppc64 (and on a CentOS qemu on x86)?  

Question asked by Tim Tenhave on May 17, 2017
Latest reply on May 24, 2017 by Tim Tenhave

I took the default T1040 and T1042 uImage and ext2 rootfs from the "QorIQ Linux SDK v2.0 PPCE5500 IMAGE.iso" and tried to run them in a CentOS X86 qemu session and on my eval T1040 board.  Both result in an init failure when starting the init process.  See latest attempt on the T1040:


t1040d4rdb:~/CXM$ qemu-system-ppc64 -kernel uImage-t1040d4rdb.bin -cpu e5500 -M ppce500 -no-reboot -show-cursor -m 1024 -initrd fsl-image-core-t1040d4rdb-20160514203035.rootfs.ext2.gz -nographic -append "root=/dev/ram rw mem=1024M"
Using QEMU e500 machine description
Memory CAM mapping: 256/256/256 Mb, residual: 256Mb
Linux version 4.1.8-rt8+gbd51baf (jenkins@neptune) (gcc version 4.9.2 (GCC) ) #1 SMP Sun May 15 04:13:24 CST 2016
Found initrd at 0xc4000000:0xc5dfc6b0
CPU maps initialized for 1 thread per core
bootconsole [udbg0] enabled
setup_arch: initmem
arch: exit
Zone ranges:
  DMA      [mem 0x0000000000000000-0x000000002fffffff]
  Normal   empty
  HighMem  [mem 0x0000000030000000-0x000000003fffffff]
Movable zone start for each node
Early memory node ranges
  node   0: [mem 0x0000000000000000-0x000000003fffffff]
Initmem setup node 0 [mem 0x0000000000000000-0x000000003fffffff]
MMU: Allocated 1088 bytes of context maps for 255 contexts
PERCPU: Embedded 12 pages/cpu @ef7df000 s19148 r8192 d21812 u49152
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260608
Kernel command line: root=/dev/ram rw mem=1024M
PID hash table entries: 4096 (order: 2, 16384 bytes)
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Sorting __ex_table...
Memory: 932416K/1048576K available (7220K kernel code, 300K rwdata, 2016K rodata, 324K init, 458K bss, 116160K reserved, 0K cma-reserved, 262144K highmem)
Kernel virtual memory layout:
  * 0xfff5f000..0xfffff000  : fixmap
  * 0xffc00000..0xffe00000  : highmem PTEs
  * 0xffbfe000..0xffc00000  : early ioremap
  * 0xf1000000..0xffbfe000  : vmalloc & ioremap
Hierarchical RCU implementation.
        RCU debugfs-based tracing is enabled.
        Additional per-CPU info printed with stalls.
        RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.
RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
NR_IRQS:512 nr_irqs:512 16
mpic: Setting up MPIC " OpenPIC  " version 1.2 at fe0040000, max 1 CPUs
mpic: ISU size: 256, shift: 8, mask: ff
mpic: Initializing for 256 sources
clocksource timebase: mask: 0xffffffffffffffff max_cycles: 0x5c4093a7d1, max_idle_ns: 440795210635 ns
clocksource: timebase mult[2800000] shift[24] registered
Console: colour dummy device 80x25
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
e500 family performance monitor hardware support registered
Brought up 1 CPUs
devtmpfs: initialized
clocksource jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
NET: Registered protocol family 16

Found FSL PCI host bridge at 0x0000000fe0008000. Firmware bus number: 0->255
PCI host bridge /pci@fe0008000 (primary) ranges:
 MEM 0x0000000c00000000..0x0000000c1fffffff -> 0x00000000e0000000
  IO 0x0000000fe1000000..0x0000000fe100ffff -> 0x0000000000000000
/pci@fe0008000: PCICSRBAR @ 0xdff00000
setup_pci_atmu: end of DRAM 40000000
EDAC PCI0: Giving out device to module MPC85xx_edac controller mpc85xx_pci_err: DEV fe0008000.pci (INTERRUPT)
MPC85xx_edac acquired irq 24 for PCI Err
MPC85xx_edac PCI err registered
fsl-pamu: fsl_pamu_init: could not find a PAMU node
PCI: Probing PCI hardware
fsl-pci fe0008000.pci: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
pci_bus 0000:00: root bus resource [mem 0xc00000000-0xc1fffffff] (bus address [0xe0000000-0xffffffff])
pci_bus 0000:00: root bus resource [bus 00-ff]
pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
pci 0000:00:00.0: PCI bridge to [bus 01-ff]
PCI: Cannot allocate resource region 0 of PCI bridge 1, will remap
PCI: Cannot allocate resource region 0 of device 0000:00:00.0, will remap
pci 0000:00:00.0: BAR 0: assigned [mem 0xc00000000-0xc000fffff]
pci 0000:00:00.0: BAR 8: assigned [mem 0xc00100000-0xc001fffff]
pci 0000:00:01.0: BAR 6: assigned [mem 0xc00200000-0xc0023ffff pref]
pci 0000:00:01.0: BAR 1: assigned [mem 0xc00240000-0xc00240fff]
pci 0000:00:01.0: BAR 0: assigned [io  0x1000-0x101f]
pci 0000:00:00.0: PCI bridge to [bus 01]
pci 0000:00:00.0:   bridge window [mem 0xc00100000-0xc001fffff]
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
pps_core: LinuxPPS API ver. 1 registered
pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <>
PTP clock support registered
EDAC MC: Ver: 3.0.0
No BMan portals available!
No QMan portals available!
No USDPAA memory, no 'fsl,usdpaa-mem' in device-tree
Switched to clocksource timebase
NET: Registered protocol family 2
TCP established hash table entries: 8192 (order: 3, 32768 bytes)
TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
UDP hash table entries: 512 (order: 2, 16384 bytes)
UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (no cpio magic); looks like an initrd
Freeing initrd memory: 30704K (c4000000 - c5dfc000)
futex hash table entries: 256 (order: 2, 16384 bytes)
audit: initializing netlink subsys (disabled)
audit: type=2000 audit(3.636:1): initialized
HugeTLB registered 4 MB page size, pre-allocated 0 pages
HugeTLB registered 16 MB page size, pre-allocated 0 pages
HugeTLB registered 64 MB page size, pre-allocated 0 pages
HugeTLB registered 256 MB page size, pre-allocated 0 pages
HugeTLB registered 1 GB page size, pre-allocated 0 pages
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
ntfs: driver 2.1.32 [Flags: R/O].
jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
bounce: pool size: 64 pages
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
console [ttyS0] disabled
serial8250.0: ttyS0 at MMIO 0xfe0004500 (irq = 42, base_baud = 115200) is a 16550A
console [ttyS0] enabled
console [ttyS0] enabled
bootconsole [udbg0] disabled
bootconsole [udbg0] disabled
ePAPR hypervisor byte channel driver
Generic non-volatile memory driver v1.1
brd: module loaded
loop: module loaded
st: Version 20101219, fixed bufsize 32768, s/g segs 256
libphy: Fixed MDIO Bus: probed
Freescale FM module, FMD API version 21.1.0
Freescale FM Ports module
fsl_mac: fsl_mac: FSL FMan MAC API based driver
fsl_dpa: FSL DPAA Ethernet driver
fsl_advanced: FSL DPAA Advanced drivers:
fsl_proxy: FSL DPAA Proxy initialization driver
fsl_dpa_shared: FSL DPAA Shared Ethernet driver
fsl_dpa_macless: FSL DPAA MACless Ethernet driver
fsl_oh: FSL FMan Offline Parsing port driver
e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
e1000: Copyright (c) 1999-2006 Intel Corporation.
e1000e: Intel(R) PRO/1000 Network Driver - 2.3.2-k
e1000e: Copyright(c) 1999 - 2014 Intel Corporation.
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci-pci: OHCI PCI platform driver
usbcore: registered new interface driver usb-storage
i2c /dev entries driver
Freescale(R) MPC85xx EDAC driver, (C) 2006 Montavista Software
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
No fsl,qman node
Freescale USDPAA process driver
fsl-usdpaa: no region found
Freescale USDPAA process IRQ driver
Freescale pme2 db driver
PME2: fsl_pme2_db_init: not on ctrl-plane
Freescale pme2 scan driver
fsl-pme2-scan: device pme_scan registered
Freescale hypervisor management driver
fsl-hv: no hypervisor found
ipip: IPv4 over IPv4 tunneling driver
Initializing XFRM netlink socket
NET: Registered protocol family 10
sit: IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
NET: Registered protocol family 15
8021q: 802.1Q VLAN Support v1.8
Key type dns_resolver registered
fsl_generic: FSL DPAA Generic Ethernet driver
hctosys: unable to open rtc device (rtc0)
RAMDISK: gzip image found at block 0
VFS: Mounted root (ext2 filesystem) on device 1:0.
devtmpfs: mounted
Freeing unused kernel memory: 324K (c0909000 - c095a000)
init[1]: unhandled signal 4 at b78f766c nip b78f766c lr b78f2c98 code 30001
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004

CPU: 0 PID: 1 Comm: init Not tainted 4.1.8-rt8+gbd51baf #1
Call Trace:
[ea03fd60] [c0706328] dump_stack+0x78/0xa0 (unreliable)
[ea03fd70] [c0704318] panic+0xd8/0x22c
[ea03fdd0] [c002ffec] do_exit+0x90c/0x910
[ea03fe10] [c0030f18] do_group_exit+0x48/0xb0
[ea03fe30] [c003cd14] get_signal+0x264/0x540
[ea03fe80] [c0007254] do_signal+0x34/0x1c0
[ea03ff30] [c00074c8] do_notify_resume+0x68/0x80
[ea03ff40] [c000fdbc] do_user_signal+0x74/0xc4
--- interrupt: 700 at 0xb78f766c
    LR = 0xb78f2c98
Rebooting in 180 seconds..t1040d4rdb: