Hi Martin,

You can do a 2nd stage cross-debootstrap on your host machine.
Also, you can build DTS as part of Linux make.
Where are your Kernel modules?

We (64 Studio) are making a scripted auto-debian image maker, watch
this space :-). If you are interested in helping or have some input
please contact me off-list.

Chris
Thanks,

Christopher Obbard
64 Studio Ltd.


On 13 March 2018 at 14:18, Martin Lucina <mar...@lucina.net> wrote:
> Hi,
>
> I'm trying to bootstrap Debian on an Olimex A64-OLinuXino board from
> scratch with mainline U-boot and kernel, using Debian stretch on x86_64 as
> the build host. For reference, here is the procedure I'm using:
>
> - cross-built mainline U-boot 2018.01 including the SPL and BL31 from latest
>   https://github.com/apritzel/arm-trusted-firmware.git#allwinner and
>   a64-olinuxino_defconfig:
>
>   (arm-trusted-firmware) $ make PLAT=sun50iw1p1 DEBUG=1 bl31 
> CROSS_COMPILE=aarch64- linux-gnu-
>   (u-boot) $ make ARCH=arm CROSS_COMPILE=aarch64-linux-gnu- 
> a64-olinuxino_defconfig
>   (u-boot) $ make ARCH=arm CROSS_COMPILE=aarch64-linux-gnu- 
> BL31=$(pwd)/../arm-trusted-firmware/build/sun50iw1p1/debug/bl31.bin
>
> - cross-built mainline kernel 4.15.7
>
>   (kernel) $ make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- defconfig
>   (kernel) $ make -j4 ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu-
>
> - partitioned and installed to SD card following the instructions in
>   board/sunxi/README.sunxi64
>
>   SD card has a 128MB FAT partition (p1) and the remainder as ext4 (p2)
>
> - ran the debootstrap 1st stage:
>
>   sudo debootstrap --arch=arm64 --variant=minbase --foreign stretch /mnt
>
> - sucessfully booted into /bin/sh using the following boot.scr:
>
>   setenv bootargs console=ttyS0,115200 root=/dev/mmcblk0p2 rootwait panic=10
>   load mmc 0:1 0x43000000 dtb
>   load mmc 0:1 0x41000000 Image
>   booti 0x41000000 - 0x43000000
>
>   (dtb is arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dtb)
>
> However, while running the debootstrap 2nd stage on the board, it seems that
> the kernel is not stable:
>
>     # mount -n -o remount,rw /
>     [   93.035277] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
>     # /debootstrap/debootstrap --second-stage
>     I: Keyring file not available at 
> /usr/share/keyrings/debian-archive-keyring.gpg; switching to https mirror 
> https://deb.debian.org/debian
>     I: Installing core packages...
>     [  109.616360] random: crng init done
>     [  138.840328] BUG: Bad page state in process dpkg  pfn:7bf40
>     [  138.845825] page:ffff7e0000efd000 count:64 mapcount:0 mapping:         
>  (null) index:0x1
>     [  138.853908] flags: 0xfffc00000000000()
>     [  138.857657] raw: 0fffc00000000000 0000000000000000 0000000000000001 
> 00000040ffffffff
>     [  138.865390] raw: dead000000000100 dead000000000200 0000000000000000 
> 0000000000000000
>     [  138.873119] page dumped because: nonzero _count
>     [  138.877641] Modules linked in:
>     [  138.880698] CPU: 3 PID: 1472 Comm: dpkg Tainted: G    B            
> 4.15.7 #1
>     [  138.887734] Hardware name: Olimex A64-Olinuxino (DT)
>     [  138.892689] Call trace:
>     [  138.895144]  dump_backtrace+0x0/0x168
>     [  138.898805]  show_stack+0x14/0x20
>     [  138.902117]  dump_stack+0x98/0xb8
>     [  138.905430]  bad_page+0xe4/0x148
>     [  138.908653]  check_new_page_bad+0x64/0xa0
>     [  138.912659]  get_page_from_freelist+0xbac/0x1048
>     [  138.917269]  __alloc_pages_nodemask+0xdc/0xbd8
>     [  138.921711]  alloc_pages_current+0x80/0xe8
>     [  138.925805]  __page_cache_alloc+0xa0/0xb0
>     [  138.929809]  pagecache_get_page+0xf8/0x280
>     [  138.933902]  grab_cache_page_write_begin+0x24/0x40
>     [  138.938690]  ext4_da_write_begin+0xa4/0x398
>     [  138.942868]  generic_perform_write+0x98/0x180
>     [  138.947221]  __generic_file_write_iter+0x130/0x1a0
>     [  138.952005]  ext4_file_write_iter+0xe0/0x358
>     [  138.956271]  __vfs_write+0xb0/0x118
>     [  138.959754]  vfs_write+0xa4/0x1b0
>     [  138.963064]  SyS_write+0x44/0xa0
>     [  138.966288]  el0_svc_naked+0x30/0x34
>     [  146.827756] BUG: Bad page state in process frontend  pfn:7a940
>     [  146.833600] page:ffff7e0000ea5000 count:64 mapcount:0 mapping:         
>  (null) index:0x1
>     [  146.841682] flags: 0xfffc00000000000()
>     [  146.845431] raw: 0fffc00000000000 0000000000000000 0000000000000001 
> 00000040ffffffff
>     [  146.853162] raw: dead000000000100 dead000000000200 0000000000000000 
> 0000000000000000
>     [  146.860891] page dumped because: nonzero _count
>     [  146.865413] Modules linked in:
>     [  146.868471] CPU: 2 PID: 1499 Comm: frontend Tainted: G    B            
> 4.15.7 #1
>     [  146.875854] Hardware name: Olimex A64-Olinuxino (DT)
>     [  146.880810] Call trace:
>     [  146.883265]  dump_backtrace+0x0/0x168
>     [  146.886926]  show_stack+0x14/0x20
>     [  146.890239]  dump_stack+0x98/0xb8
>     [  146.893551]  bad_page+0xe4/0x148
>     [  146.896775]  check_new_page_bad+0x64/0xa0
>     [  146.900780]  get_page_from_freelist+0xbac/0x1048
>     [  146.905390]  __alloc_pages_nodemask+0xdc/0xbd8
>     [  146.909832]  alloc_pages_vma+0x88/0x1f8
>     [  146.913666]  __handle_mm_fault+0xa84/0x1098
>     [  146.917844]  handle_mm_fault+0x124/0x1d0
>     [  146.921763]  do_page_fault+0x178/0x360
>     [  146.925508]  do_translation_fault+0x3c/0x48
>     [  146.929685]  do_mem_abort+0x40/0xb0
>     [  146.933160]  el0_da+0x20/0x24
>     I: Unpacking required packages...
>     I: Unpacking libacl1:arm64...
>     I: Unpacking libattr1:arm64...
>     I: Unpacking libaudit-common...
>     I: Unpacking libaudit1:arm64...
>     I: Unpacking base-files...
>     I: Unpacking base-passwd...
>     I: Unpacking bash...
>     I: Unpacking libbz2-1.0:arm64...
>     I: Unpacking libdebconfclient0:arm64...
>     I: Unpacking coreutils...
>     [  226.850339] Unable to handle kernel NULL pointer dereference at 
> virtual address 0000042e
>     [  226.854130] BUG: Bad page state in process dpkg  pfn:7c969
>     [  226.854142] page:ffff7e0000f25a40 count:64 mapcount:0 mapping:         
>  (null) index:0x0
>     [  226.854150] flags: 0xfffc00000000000()
>     [  226.854159] raw: 0fffc00000000000 0000000000000000 0000000000000000 
> 00000040ffffffff
>     [  226.854165] raw: dead000000000100 dead000000000200 0000000000000000 
> 0000000000000000
>     [  226.854167] page dumped because: nonzero _refcount
>     [  226.854169] Modules linked in:
>     [  226.854180] CPU: 1 PID: 1596 Comm: dpkg Tainted: G    B            
> 4.15.7 #1
>     [  226.854182] Hardware name: Olimex A64-Olinuxino (DT)
>     [  226.854185] Call trace:
>     [  226.854200]  dump_backtrace+0x0/0x168
>     [  226.854207]  show_stack+0x14/0x20
>     [  226.854213]  dump_stack+0x98/0xb8
>     [  226.854219]  bad_page+0xe4/0x148
>     [  226.854224]  free_pages_check_bad+0x6c/0xa8
>     [  226.854228]  free_pcppages_bulk+0x450/0x4d0
>     [  226.854233]  free_unref_page_commit+0xc4/0x110
>     [  226.854238]  free_unref_page+0x68/0x80
>     [  226.854243]  __put_page+0x44/0x50
>     [  226.854250]  anon_pipe_buf_release+0x68/0x80
>     [  226.854254]  pipe_read+0x18c/0x2e8
>     [  226.854261]  __vfs_read+0xb0/0x110
>     [  226.854264]  vfs_read+0x8c/0x148
>     [  226.854269]  SyS_read+0x44/0xa0
>     [  226.854274]  el0_svc_naked+0x30/0x34
>     [  226.967682] Mem abort info:
>     [  226.970471]   ESR = 0x96000004
>     [  226.973521]   Exception class = DABT (current EL), IL = 32 bits
>     [  226.979430]   SET = 0, FnV = 0
>     [  226.982479]   EA = 0, S1PTW = 0
>     [  226.985614] Data abort info:
>     [  226.988489]   ISV = 0, ISS = 0x00000004
>     [  226.992317]   CM = 0, WnR = 0
>     [  226.995284] user pgtable: 4k pages, 48-bit VAs, pgd = 00000000f0b3b73c
>     [  227.001800] [000000000000042e] *pgd=0000000000000000
>     [  227.006761] Internal error: Oops: 96000004 [#1] PREEMPT SMP
>     [  227.012325] Modules linked in:
>     [  227.015382] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G    B            
> 4.15.7 #1
>     [  227.022592] Hardware name: Olimex A64-Olinuxino (DT)
>     [  227.027550] pstate: 80000085 (Nzcv daIf -PAN -UAO)
>     [  227.032344] pc : sched_ttwu_pending+0x5c/0xb0
>     [  227.036695] lr : sched_ttwu_pending+0xa8/0xb0
>     [  227.041044] sp : ffff000008f53ef0
>     [  227.044353] x29: ffff000008f53ef0 x28: 0000000041e40018
>     [  227.049661] x27: 0000000000000400 x26: ffff000008f62a80
>     [  227.054967] x25: 0000000000000000 x24: ffff000008f59e90
>     [  227.060273] x23: 0000000000000000 x22: ffff000008f4b0a8
>     [  227.065580] x21: 0000000000000000 x20: ffff80003ef8f180
>     [  227.070885] x19: 0000000000000002 x18: 0000000000000000
>     [  227.076192] x17: 0000ffffa3cb5d80 x16: ffff0000082161c0
>     [  227.081498] x15: 0000000000000000 x14: 0000000000000400
>     [  227.086803] x13: 0000000000000400 x12: 0000000000000001
>     [  227.092109] x11: 000000000000018f x10: 0000000000000a00
>     [  227.097414] x9 : ffff000008f53e80 x8 : ffff000008f634e0
>     [  227.102720] x7 : 0000000000000000 x6 : 0000000008c57f78
>     [  227.108026] x5 : 00000034d154ea7f x4 : 000000345c74b395
>     [  227.113332] x3 : 000000001dcd6500 x2 : 0000000014e1317f
>     [  227.118637] x1 : ffffffffffffff6a x0 : ffff80003ef8f180
>     [  227.123945] Process swapper/0 (pid: 0, stack limit = 
> 0x000000001ebc162c)
>     [  227.130634] Call trace:
>     [  227.133080]  sched_ttwu_pending+0x5c/0xb0
>     [  227.137087]  do_idle+0xb8/0x1e0
>     [  227.140226]  cpu_startup_entry+0x24/0x28
>     [  227.144146]  rest_init+0xd0/0xe0
>     [  227.147375]  start_kernel+0x39c/0x3b0
>     [  227.151035] Code: b949da80 36080280 d1026261 b4000173 (39531022)
>     [  227.157128] ---[ end trace 51d0109622e659fa ]---
>     [  227.161740] Kernel panic - not syncing: Attempted to kill the idle 
> task!
>     [  227.168432] SMP: stopping secondary CPUs
>     [  227.172351] Kernel Offset: disabled
>     [  227.175835] CPU features: 0x0802004
>     [  227.179316] Memory Limit: none
>     [  227.182369] Rebooting in 10 seconds..
>     INFO:    PSCI Affinity Map:
>     INFO:      AffInst: Level 0, MPID 0x0, State ON
>     INFO:      AffInst: Level 0, MPID 0x1, State ON
>     INFO:      AffInst: Level 0, MPID 0x2, State ON
>     INFO:      AffInst: Level 0, MPID 0x3, State ON
>
> I've now also tried with a 4.16-rc5 kernel and get the same "bad page
> state" early in the boot process.
>
> Are current mainline kernels stable on this board, or do I need some extra
> patches? Headless operation is enough for me.
>
> Also, another thing which is not clear to me -- should I use the dtb that
> came with the kernel, or the one that comes with U-boot via
> $fdtcontroladdr? Either option does not change the BUG for me.
>
> -mato
>
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