Fwd: Running L4Linux + Fiasco on Freescale i.MX 6 Sabre SD

Matthias Lange matthias.lange at kernkonzept.com
Fri May 29 08:57:12 CEST 2015


Hi,

its just an educated guess, but I suspect that /bin/init tries to access
some devices in /dev. Have you enabled devtmpfs and the devtmps
automount option in L4Linux?

Matthias.

On 05/28/2015 12:49 PM, Mahdi Aichouch wrote:
> Hello,
> 
> Thank you very much Mattias for you help.
> 
> Now L4Linux goes further but it stops after mounting the root filesystem.
> Do you have an idea of what might be wrong.
> 
> Thank you in advance.
> 
> Best regards,
> Mahdi
> 
> L4 Bootstrapper
>   Build: #81 Thu May 28 10:36:41 CEST 2015, 4.8.3 20140320 (prerelease)
>   Scanning up to 256 MB RAM, starting at offset 32MB
>   Memory size is 256MB (10000000 - 1fffffff)
>   RAM: 0000000010000000 - 000000001fffffff: 262144kB
>   Total RAM: 256MB
>   Scanning fiasco
>   Scanning sigma0
>   Scanning moe
>   Moving up to 10 modules behind 11100000
>   moving module 02 { 118aa000-118e363f } -> { 1199a000-119d363f } [235072]
>   moving module 01 { 118a0000-118a938b } -> { 11990000-1199938b } [37772]
>   moving module 00 { 11848000-1189fb17 } -> { 11938000-1198fb17 } [359192]
>   moving module 09 { 11548000-11847fff } -> { 11638000-11937fff } [3145728]
>   moving module 08 { 111d6000-11547497 } -> { 112c6000-11637497 } [3609752]
>   moving module 07 { 111d5000-111d50bc } -> { 112c5000-112c50bc } [189]
>   moving module 06 { 1107e000-111d446f } -> { 1116e000-112c446f } [1401968]
>   moving module 05 { 1107d000-1107d17b } -> { 1116d000-1116d17b } [380]
>   moving module 04 { 1102a000-1107cc1f } -> { 1111a000-1116cc1f } [338976]
>   moving module 03 { 11010000-11029473 } -> { 11100000-11119473 } [103540]
>   Loading fiasco
>   Loading sigma0
>   Loading moe
>   find kernel info page...
>   found kernel info page at 0x10002000
> Regions of list 'regions'
>     [ 10000000,  1000015f] {      160} Root   mbi_rt
>     [ 10001000,  10001aff] {      b00} Kern   fiasco
>     [ 10002000,  10066fff] {    65000} Kern   fiasco
>     [ 10090000,  10096edf] {     6ee0} Sigma0 sigma0
>     [ 10098000,  1009e177] {     6178} Sigma0 sigma0
>     [ 10140000,  10171d77] {    31d78} Root   moe
>     [ 10178000,  101934ab] {    1b4ac} Root   moe
>     [ 11000000,  1100f58f] {     f590} Boot   bootstrap
>     [ 11100000,  11937fff] {   838000} Root   Module
>   API Version: (87) experimental
>   Sigma0 config    ip:10090100 sp:00000000
>   Roottask config  ip:10140260 sp:00000000
>   Starting kernel fiasco at 100012c8
> Number of IRQs available at this GIC: 160
> FPU0: Arch: VFPv3(3), Part: VFPv3(30), r: 4, v: 9, i: 41, t: hard, p:
> dbl/sngl
> L2: ID=410000c7 Type=9e340340 Aux=02070000 WMask=ffff S=0
> L2: Type L2C-310 Size = 1024kB  Ways=16 Waysize=64
> GIC: Switching IRQ 58 to secure
> SERIAL ESC: allocated IRQ 58 for serial uart
> Not using serial hack in slow timer handler.
> Welcome to Fiasco.OC (arm)!
> L4/Fiasco.OC arm microkernel (C) 1998-2013 TU Dresden
> Rev: rexported compiled with gcc 4.8.3 for i.MX6    []
> Build: #15 Thu May 28 10:35:21 CEST 2015
> 
> GIC: Switching IRQ 29 to secure
> Calibrating timer loop... done.
> MDB: use page size: 20
> MDB: use page size: 12
> SIGMA0: Hello!
>   KIP @ 10002000
>   allocated 4KB for maintenance structures
> SIGMA0: Dump of all resource maps
> RAM:------------------------
> [4:10000000;10000fff]
> [0:10067000;1008ffff]
> [0:10097000;10097fff]
> [0:1009f000;1013ffff]
> [4:10140000;10171fff]
> [0:10172000;10177fff]
> [4:10178000;10193fff]
> [0:10194000;110fffff]
> [4:11100000;11937fff]
> [0:11938000;1effffff]
> IOMEM:----------------------
> [0:0;fffffff]
> [0:20000000;ffffffff]
> MOE: Hello world
> MOE: found 236564 KByte free memory
> MOE: found RAM from 10000000 to 1f000000
> MOE: allocated 240 KByte for the page array @0x1009f000
> MOE: virtual user address space [0-bfffffff]
> MOE: rom name space cap -> [C:501000]
>   BOOTFS: [11100000-11119474] [C:503000] l4re
>   BOOTFS: [1111a000-1116cc20] [C:504000] ned
>   BOOTFS: [1116d000-1116d17c] [C:505000] l4lx.cfg
>   BOOTFS: [1116e000-112c4470] [C:506000] io
>   BOOTFS: [112c5000-112c50bd] [C:507000] arm-rv.io <http://arm-rv.io>
>   BOOTFS: [112c6000-11637498] [C:508000] vmlinuz.arm
>   BOOTFS: [11638000-11938000] [C:509000] ramdisk-arm.rd
> MOE: cmdline: moe rom/l4lx.cfg
> MOE: Starting: rom/ned rom/l4lx.cfg
> MOE: loading 'rom/ned'
> Ned says: Hi World!
> Ned: loading file: 'rom/l4lx.cfg'
> l4linux | libio: Warning: Query of 'vbus' failed!
> l4linux | PH  0 (t:        1) offs=00008000 vaddr=02000000 vend=023defa8
> l4linux |                     phys=02000000 ephys=023defa8
> l4linux |                     f_sz=00359394 memsz=003defa8 flgs=rwx
> l4linux | PH  1 (t:        4) offs=0031afe0 vaddr=02312fe0 vend=02313004
> l4linux |                     phys=02312fe0 ephys=02313004
> l4linux |                     f_sz=00000024 memsz=00000024 flgs=r-x
> l4linux | PH  2 (t: 1685382481) offs=00000000 vaddr=00000000 vend=00000000
> l4linux |                     phys=00000000 ephys=00000000
> l4linux |                     f_sz=00000000 memsz=00000000 flgs=rwx
> l4linux | Starting binary at 0x20002b0, argc=6 argv=0xafff4f8c
> *argv=0xb1007ff0 argv0=rom/vmlinuz.arm
> l4linux | External resolver is at 0xa8000788
> l4linux | ======> L4Linux starting... <========
> l4linux | Linux version 3.16.0-l4 (aichouch at aichouch-ThinkCentre-M90)
> (gcc version 4.8.3 20140320 (prerelease) (Sourcery CodeBench Lite
> 2014.05-29) ) #1 Wed May 27 18:04:14 CEST 2015
> l4linux | Binary name: rom/vmlinuz.arm
> l4linux |    This is an AEABI build.
> l4linux | Linux kernel command line (5 args): mem=64M console=ttyLv0
> l4x_rd=rom/ramdisk-arm.rd root=1:0 ramdisk_size=4000
> l4linux | CPU mapping (l:p)[1]: 0:0
> l4linux | Image: 02000000 - 02400000 [4096 KiB].
> l4linux | Areas: Text:     02000000 - 02332000 [3272kB] (a bit longer)
> l4linux |        Data:     02332000 - 023543a0 [136kB]
> l4linux |        Initdata: 02314000 - 02331024 [116kB]
> l4linux |        BSS:      02359394 - 023defa8 [535kB]
> l4linux | Device scan:
> l4linux | Device scan done.
> l4linux | l4lx_thread_create: Created thread 413 (cpu0) (u:b3000e00,
> v:b3000c00, sp:02333fa4)
> l4linux | main thread will be 413
> l4linux | l4x_register_pointer_section: addr = 02000000 size = 4059136
> l4linux | section-with-init: Virt: 0x2000000 to 0x23defa7 [3963 KiB]
> l4linux | section-with-init: Phys: 0x1025a000 to 0x10638fa7, [3963 KiB]
> l4linux | Main thread running, waiting...
> l4linux | L4x: Memory size: 64MB
> l4linux | L4x: Setting superpages for main memory
> l4linux | L4x: Adjusted memory start: 02000000
> l4linux |     Main memory: Virt: 0x2400000 to 0x63fffff [65536 KiB]
> l4linux |     Main memory: Phys: 0x11a00000 to 0x159fffff, [65536 KiB]
> l4linux | l4x: vmalloc area: 06400000 - 0e400000
> l4linux | l4x_register_pointer_section: addr = 02000000 size = 4059136
> l4linux |            text: Virt: 0x2000000 to 0x23defa7 [3963 KiB]
> l4linux |            text: Phys: 0x1025a000 to 0x10638fa7, [3963 KiB]
> l4linux | Loading: rom/ramdisk-arm.rd
> l4linux | INITRD: Size of RAMdisk is 3072KiB
> l4linux | RAMdisk from 00002000 to 00302000 [3072KiB]
> l4linux | l4lx_thread_create: Created thread 418 (timer0) (u:b3000a00,
> v:00000000, sp:02377fa0)
> Booting Linux on physical CPU 0x0
> Linux version 3.16.0-l4 (aichouch at aichouch-ThinkCentre-M90) (gcc version
> 4.8.3 20140320 (prerelease) (Sourcery CodeBench Lite 2014.05-29) ) #1
> Wed May 27 18:04:14 CEST 2015
> CPU: Fiasco [412fc09a] revision 10 (ARMv7), cr=00000000
> CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
> Machine: L4
> Ignoring unrecognised tag 0x00000000
> Memory policy: Data cache uncached
> INITRD: 00002000 - 00302000
> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 17209
> Kernel command line: mem=64M console=ttyLv0 l4x_rd=rom/ramdisk-arm.rd
> root=1:0 ramdisk_size=4000
> PID hash table entries: 512 (order: -1, 2048 bytes)
> Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
> Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
> Memory: 64808K/69636K available (2460K kernel code, 136K rwdata, 688K
> rodata, 116K init, 535K bss, 4828K reserved)
> Virtual kernel memory layout:
>     vector  : 0xbffff000 - 0xc0000000   (   4 kB)
>     fixmap  : 0xffc00000 - 0xffe00000   (2048 kB)
>     vmalloc : 0x06400000 - 0x0e400000   ( 128 MB)
>     lowmem  : 0x00000000 - 0x06400000   ( 100 MB)
>     modules : Virtual kernel memory layout:
>     vector  : 0xbffff000 - 0xc0000000   (   4 kB)
>     fixmap  : 0xffc00000 - 0xffe00000   (2048 kB)
>     vmalloc : 0x06400000 - 0x0e400000   ( 128 MB)
>     lowmem  : 0x00000000 - 0x06400000   ( 100 MB)
>     moNR_IRQS:220
> l4timer: Using IRQ210
> sched_clock: 64 bits at 1000kHz, resolution 1000ns, wraps every
> 2147483648000ns
> Console: colour dummy device 80x30
> console [ttyLv0] enabled
> Calibrating delay loop... 1574.50 BogoMIPS (lpj=7872512)
> pid_max: default: 32768 minimum: 301
> Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
> Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
> CPU: Testing write buffer coherency: ok
> Setting up static identity map for 0x22509d8 - 0x22509d8
> VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
> NET: Registered protocol family 16
> DMA: preallocated 256 KiB pool for atomic coherent allocations
> Failed to create "l4x" debugfs directory: 1
> Switched to clocksource l4kipclk
> NET: Registered protocol family 2
> TCP established hash table entries: 1024 (order: 0, 4096 bytes)
> TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
> TCP: Hash tables configured (established 1024 bind 1024)
> TCP: reno registered
> UDP hash table entries: 256 (order: 0, 4096 bytes)
> UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
> NET: Registered protocol family 1
> Trying to unpack rootfs image as initramfs...
> rootfs image is not initramfs (junk in compressed archive); looks like
> an initrd
> INITRD: Freeing memory.
> l4x: Checks passed.
> NetWinder Floating Point Emulator V0.97 (double precision)
> futex hash table entries: 256 (order: -1, 3072 bytes)
> msgmni has been set to 126
> io scheduler noop registered
> io scheduler deadline registered
> io scheduler cfq registered (default)
> L4 serial driver
> ttyLv0 at MMIO 0x1 (irq = 211, base_baud = 230400) is a L4
> l4ser_shm: L4 shared mem serial driver
> l4cdds: No name given, not starting.
> brd: module loaded
> l4bdds: No name given, not starting.
> mousedev: PS/2 mouse device common for all mice
> TCP: cubic registered
> NET: Registered protocol family 17
> RAMDISK: ext2 filesystem found at block 0
> RAMDISK: Loading 3072KiB [1 disk] into ram disk... done.
> EXT4-fs (ram0): couldn't mount as ext3 due to feature incompatibilities
> EXT4-fs (ram0): mounting ext2 file system using the ext4 subsystem
> EXT4-fs (ram0): mounted filesystem without journal. Opts: (null)
> VFS: Mounted root (ext2 filesystem) readonly on device 1:0.
> Freeing unused kernel memory: 116K (02314000 - 02331000)
> Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
> 
> CPU: 0 PID: 1 Comm: init Not tainted 3.16.0-l4 #1
> [<0200cc68>] (unwind_backtrace) from [<020057e4>] (show_stack+0x10/0x14)
> [<020057e4>] (show_stack) from [<0224ad50>] (panic+0x7c/0x1d0)
> [<0224ad50>] (panic) from [<0201dcdc>] (do_exit+0x7b8/0x7f0)
> [<0201dcdc>] (do_exit) from [<0201e858>] (do_group_exit+0x40/0xa0)
> [<0201e858>] (do_group_exit) from [<02028700>]
> (get_signal_to_deliver+0x148/0x4b4)
> [<02028700>] (get_signal_to_deliver) from [<02006e1c>]
> (do_signal+0x118/0x454)
> [<02006e1c>] (do_signal) from [<0200a4d4>] (l4x_vcpu_entry_c+0xa74/0x1dd4)
> [<0200a4d4>] (l4x_vcpu_entry_c) from [<0000c548>] (0xc548)
> ---[ end Kernel panic - not syncing: Attempted to kill init!
> exitcode=0x0000000b
> 
> panic: going to sleep forever, bye
> l4linux | panic: going to sleep forever, bye
> 
> 
> On Thu, May 28, 2015 at 8:23 AM, Matthias Lange
> <matthias.lange at kernkonzept.com <mailto:matthias.lange at kernkonzept.com>>
> wrote:
> 
>     Hi,
> 
>     On 05/27/2015 06:43 PM, Mahdi Aichouch wrote:
>     > Hello,
>     >
>     > I tried to run L4Linux + Fiasco on a Freescale i.mx <http://i.mx>
>     <http://i.mx> 6
>     > Sabre SD board.
>     >
>     > The L4Linux is started but it stops at loading the ramdisk, as shown in
>     > the debug messages below.
>     >
>     > Does someone has an idea of what might be wrong.
>     >
>     > Thank you very much in advance.
>     >
>     > Best regards,
>     >
>     > Mahdi
>     >
> 
>     [...]
> 
>     > l4linux | l4x_register_pointer_section: addr = 02000000 size = 4059136
>     > l4linux |            text: Virt: 0x2000000 to 0x23defa7 [3963 KiB]
>     > l4linux |            text: Phys: 0x1025a000 to 0x10638fa7, [3963 KiB]
>     > l4linux | Loading: rom/ramdisk-arm.rd
>     > l4linux | INITRD: Size of RAMdisk is 3072KiB
>     > l4linux | RAMdisk from 00002000 to 00302000 [3072KiB]
>     > l4linux | 'swp(b)' instruction at 0224f728 and faulting.
> 
>     Have you enabled CONFIG_ARM_ENABLE_SWP in your Fiasco config?
> 
>     Matthias.
> 
> 
>     --
>     Matthias Lange, matthias.lange at kernkonzept.com
>     <mailto:matthias.lange at kernkonzept.com>, +49 - 351 - 41 88 86 14
>     <tel:%2B49%20-%20351%20-%2041%2088%2086%2014>
> 
>     Kernkonzept GmbH.  Sitz: Dresden.  Amtsgericht Dresden, HRB 31129.
>     Geschäftsführer: Dr.-Ing. Michael Hohmuth
> 
> 
> 
> 
> 
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-- 
Matthias Lange, matthias.lange at kernkonzept.com, +49 - 351 - 41 88 86 14

Kernkonzept GmbH.  Sitz: Dresden.  Amtsgericht Dresden, HRB 31129.
Geschäftsführer: Dr.-Ing. Michael Hohmuth




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