cann't boot

[nightsuns]

hi,all:
i use the newest version in repo to boot up, and there is some problem:

1. it's a kernel pain after startup, and i comment out OSKextRemoveKextBootstrap() , ok there error is gone
2. but use the ramdisk on repo, i cann't boot to the login shell. after some debug, because lanuchd always has problem, and call sleh_undef.

anybody, could help me?

BTW: https://www.dropbox.com/s/j5id402t2er59vh/ramdisk_new.dmg?dl=0, this ramdisk is 404,could somebody share a copy?

[nightsuns]

below is my startup log, and alway stop at: exec_mach_imgact: mach_header = b4000, sp 2fd4cf4c.

qemu-system-arm -S -s -machine realview-pb-a8 -m 1024 -kernel uImage -append "rd=md0 debug=0x1 -v -s" -serial stdio

debug_init()

::
:: GenericBooter for RealView, Copyright 2013, winocm.
::
:: BUILD_TAG:
::
:: BUILD_STYLE: DEVELOPMENT
::
:: COMPILE_DATE: May 9 2016 15:55:33

::

• Preparing system...
  image3_get_tag_data: data at 0x84010080 of size 0x00d07280 for image type 'krnl'
  Loading kernel at 0x70001000
  Slidden address at 0x80001000
  image3_get_tag_data: data at 0x86517370 of size 0x00000a5b for image type 'xmdt'
  image3_get_tag_data: data at 0x84d17340 of size 0x01800000 for image type 'rdsk'
  creating ramdisk at 0x70d50000 of size 0x1800000, from image at 0x84d17340
  creating device tree at 0x72550000 of size 0xa00
  gBootArgs.commandLine = [rd=md0 debug=0x1 -v -s]
  kernel prepped at 0x701b88e0, transferring control out of booter now!
  PE_RealView: pic at 0xc0002000, distribution at 0xc0003000
  cache: initializing i+dcache ... done
  CPU: Cortex A8-r0 rev 0 (Cortex-A core)
  Supported features: ARM_ISA THUMB2 THUMBEE ARMv4
  WB enabled LABT branch prediction enabled
  LoUU:2 LoC:2 LoUIS:1
  Cache level 1:
  16KB/64B 4-way data cache WT WB Read-Alloc
  16KB/64B 4-way instruction cache Read-Alloc
  Debugger called: <inline call to debugger(machine_startup)>
  pmap_steal_memory: C0307000 - C0309000; size=00002000
  pmap_steal_memory: C0309000 - C030A000; size=00001000
  pmap_steal_memory: C030A000 - C0310000; size=00006000
  pmap_steal_memory: C0310000 - C0390000; size=00080000
  pmap_steal_memory: C0390000 - C03E0000; size=00050000
  pmap_steal_memory: C03E0000 - C08DAF80; size=004FAF80
  Filling vm_pages with pattern: 0xdeb8f177
  [ASID configuration start]
  All ASID/asids enabled: real_ncpus: 1, pmap_asid_ncpus: 1
  Scheduler: Default of traditional
  PE_RealView: decrementer frequency = 5000
  PE_RealView: RealView Timer initialized, Timer value 4803
  rtclock_bus_configure: Configuring RTCLOCK...
  [RTCLOCK] Frequency = 1.000000MHz, cvtt2n = 000003E8.00000000, cvtn2t = 00000000.00418937
  Initializing serial KDP
  Kernel boot args: 'rd=md0 debug=0x1 -v -s'
  PE_init_iokit: starting IOKit now!
  COLOR video console at 0xc0007000 (1024x768x32)
  bsd_autoconf: calling kminit
  attempting to start init of /sbin/launchd
  dyld_slide: 0x000b3000
  dyld_slide: 0x000b3000
  exec_mach_imgact: mach_header = b4000, sp 2fd4cf4c

[wargio]

you mean this one https://github.com/darwin-on-arm/ramdisk/blob/master/ramdisk.dmg ?

[nightsuns]

@wargio : yes, the log i am cannot boot is this one.

but i refered on dropbox, is the one i used can boot about half year ago. and on dropbox one i cannot download it anymore.

[wargio]

at the least you can build it. i'm failing on generating the uBoot image.
keeps giving me mkimage: Write error on uImage: Bad address.

anyway, you can create a new ramdisk.
https://github.com/darwin-on-arm/wiki/wiki/Creating-a-new-ramdisk

[wargio]

have you built a good image? i'm trying to, but each time i launch qemu it gives me an error.
anyway my vmlinux image is > 2 gb D: is also yours so big?

[nightsuns]

no.

Generating uImage... Image Name: GenericBooter Created: Fri May 13 20:26:16 2016 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 38930427 Bytes = 38018.00 kB = 37.13 MB Load Address: 84000040 Entry Point: 84000040 rm -f vmlinux.raw

[nightsuns]

Generating uImage...
Image Name: GenericBooter
Created: Fri May 13 20:26:16 2016
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 38930427 Bytes = 38018.00 kB = 37.13 MB
Load Address: 84000040
Entry Point: 84000040
rm -f vmlinux.raw

[wargio]

ok. i got the right image. i had to change the toolchain version.
how you built your devicetree data? mine is wrong. it doesn't load somehow :|

these are what i built.

$ md5sum *.devicetree 
a9a9a3189021d13fd5e177c5b3fe49b3  Nokia_RX51.devicetree
780d77bcc6520dd35b21775ae8490145  RealView.devicetree
5660f9c615db52da4daebdc7c5b91c69  TI_BeagleXM.devicetree
483b08e77415286c7bced6160c6aa6af  USBarmory_MkI.devicetree

and i included mine in this way: image3maker -t xmdt -f ../DeviceTrees/RealView.devicetree -o images/DeviceTree.img3
How have you done yours?

[wargio]

finally i'm able to build something good. i've updated the wiki with the right commands and all the missing things.

now i have the same OSKextRemoveKextBootstrap kpanic!

[Edit] after commenting OSKextRemoveKextBootstrap(); at line 409 (https://github.com/darwin-on-arm/xnu/blob/master/osfmk/kern/startup.c#L409) it does boot and i got to the command console.