Re: FYI: imx-sdma firmware is not compatible with SLUB slab allocator

[Jurgen Lambrecht <J.Lambrecht@TELEVIC.com>]

On 9/3/19 4:48 PM, Leonard Crestez wrote:
> CAUTION: This Email originated from outside Televic. Do not click links or open attachments unless you recognize the sender and know the content is safe.
>
>
> On 03.09.2019 17:32, Jurgen Lambrecht wrote:
>> On 9/3/19 7:57 AM, Robin Gong wrote:
>>
>>>> And that are the last commits on drivers/dma/imx-sdma.c for my 4.19.x+fslc
>>>> branch. But I have already tried 5.1.x+fslc, and it also got stuck.
>>> Sorry, I can't reproduce your issue on Linux 5.3-rc6 with 'CONFIG_SLOB=y' and
>>> SDMA firmware built in kernel, Could you have a try on our imx6ul-14x14-evk
>>> board with Linux 5.3-rc6 directly(no any patch needed)?
>> This works on our own board (with imx6ul)!
> Something seems to be wrong with the fslc tree, using 5.1.x+fslc at
> latest commit cd1d083333e76e03d16f015c23f1f1b8c8637381 I can reproduce
> the issue on imx6ul-14x14-evk board.
>
> Running without SLOB and builtin firmware it's fine.
>
> I couldn't reproduce with latest 4.19.x+fslc (currently at commit
> 91d5756ab9096bbec256115d1d6b85f5d7139f85), maybe some additional SDMA
> patches were applied which fixed this issue?

My 4.19.x+fslc was a 4.19.56 (cda746ffc).

Now I updated to your version 4.19.66, and it does not hang anymore, but 
I get a *kernel panic* (oops) (so with sdma FW and with the SLOB 
allocator). Also when I remove earlycon and update the dts not to enable 
sdma on the uart, it still panics. Also with our patches on top kernel 
panics. To be completely sure, I compiled 4.19.66+fslc (so 
91d5756ab9096bbec256115d1d6b85f5d7139f85) with imx_v6_v7_defconfig 
(instead of our minimal defconfig) and then it panics half of the time 
(see below).

With SLUB, it works. And with SLOB without sdma it also works!

Here the kernel panic log:

[    0.971298] io scheduler noop registered (default)
[    1.045927] imx-sdma 20ec000.sdma: loaded firmware 3.5
[    1.060382] console [ttymxc0] enabled
[    1.064199] bootconsole [ec_imx6q0] disabled
[    1.104663] Unable to handle kernel paging request at virtual address 
ffffffe8
[    1.112035] pgd = (ptrval)
[    1.114772] [ffffffe8] *pgd=9ffff841, *pte=00000000, *ppte=00000000
[    1.121138] Internal error: Oops: 27 [#1] PREEMPT ARM
[    1.126212] Modules linked in:
[    1.129305] CPU: 0 PID: 1 Comm: swapper Not tainted 
4.19.66-televic-rail-33.97.1802-00072-g39a835ebea4c #2
[    1.138979] Hardware name: Freescale i.MX6 Ultralite (Device Tree)
[    1.145197] PC is at alloc_vmap_area+0x140/0x3ec
[    1.149836] LR is at 0x1000
[    1.152650] pc : [<c01cc150>]    lr : [<00001000>]    psr: 00000053
[    1.158937] sp : df055cb0  ip : 00009000  fp : ff800000
[    1.164183] r10: 00000001  r9 : c0a74204  r8 : 00000001
[    1.169430] r7 : c0a74204  r6 : ffffffff  r5 : 00000001  r4 : 00009000
[    1.175980] r3 : 00000000  r2 : 00000000  r1 : c0a11df0  r0 : e0876000
[    1.182533] Flags: nzcv  IRQs on  FIQs off  Mode SVC_32  ISA ARM  
Segment none
[    1.189778] Control: 10c53c7d  Table: 80004059  DAC: 00000051
[    1.195546] Process swapper (pid: 1, stack limit = 0x(ptrval))
[    1.201399] Stack: (0xdf055cb0 to 0xdf056000)
[    1.205785] 5ca0:                                     e0800000 
00000000 e0809000 e0800000
[    1.213993] 5cc0: 00000000 df2ed640 df2d4d80 b65d4d11 ffffffff 
00009000 df2ed5c0 00000022
[    1.222202] 5ce0: 006080c0 00000001 e0800000 c0a03048 df2d4d80 
c01cc490 ffffffff 006080c0
[    1.230412] 5d00: df2c1980 00008000 ffffffff ffffffff 006080c0 
df2d4d80 00000001 c01cd870
[    1.238621] 5d20: ff800000 ffffffff 006080c0 c0382754 c0a12028 
c0382754 ffffffff 00000000
[    1.246829] 5d40: df2c1940 df2d4d80 00000001 c01cda50 006080c0 
0000024f 00000000 ffffffff
[    1.255038] 5d60: c0382754 00000000 df2c1940 df2ed540 00000100 
c01cdb1c ffffffff c0382754
[    1.263247] 5d80: df2d4d80 c0382754 df2d4d80 df2c1940 00000000 
df2d4d90 00000000 c03808d4
[    1.271457] 5da0: df2c1940 c037f4f0 c037f514 df2ec640 00000000 
c037f520 df2c1940 df2d4d80
[    1.279666] 5dc0: c0a12030 c037d7d4 006000c0 00100000 00000013 
c05ee130 00000200 df2c1940
[    1.287875] 5de0: 00000000 00000000 df2d4d90 00000000 00000001 
c0a03048 df2d4d80 c02131cc
[    1.296082] 5e00: 00000000 c01f5640 00000000 b65d4d11 00000000 
00000000 df2d4d80 c0a03048
[    1.304290] 5e20: 00000001 00000000 df2c194c 00000001 df2d4d80 
c02134a8 df2d4e70 00000001
[    1.312498] 5e40: 00000000 b65d4d11 c09005a4 c01f4bb8 df2d4df8 
c02129a4 df2c19b0 b65d4d11
[    1.320707] 5e60: df2c1980 df2c1940 00000000 c0a03048 00000001 
df2c19b0 df2c194c 00000001
[    1.328915] 5e80: df2d4d80 c037f138 c037d7d4 c037f514 df2c1940 
c0a1cd48 00100000 c05fcbcc
[    1.337124] 5ea0: 0000000d df29f5f0 c09005a4 b65d4d11 df29d740 
df2c3cc0 c0a1cd48 c0a1cd48
[    1.345333] 5ec0: c0a1cd4c 00000000 c0a1cd4c c0a1cd48 c09005a4 
c091b158 c091ac58 00000000
[    1.353542] 5ee0: c0a2b080 00000006 c0a03048 c091b0a8 00000000 
c0929830 c0929838 c0102658
[    1.361751] 5f00: 00000000 00000084 00000084 dfbea400 00000065 
c081f5e4 00000084 c013845c
[    1.369959] 5f20: c081eba8 00000000 c09005a4 00000000 00000006 
00000006 00000000 dfbea401
[    1.378168] 5f40: 00000000 b65d4d11 00000000 b65d4d11 c0934f90 
00000006 c0a2b080 00000084
[    1.386376] 5f60: c0a2b080 c0929838 c09005a4 c0900dbc 00000006 
00000006 00000000 c09005a4
[    1.394584] 5f80: c05fd99c 00000000 c05fd99c 00000000 00000000 
00000000 00000000 00000000
[    1.402792] 5fa0: 00000000 c05fd9a4 00000000 c01010e8 00000000 
00000000 00000000 00000000
[    1.410998] 5fc0: 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 00000000
[    1.419205] 5fe0: 00000000 00000000 00000000 00000000 00000013 
00000000 00000000 00000000
[    1.427434] [<c01cc150>] (alloc_vmap_area) from [<c01cc490>] 
(__get_vm_area_node+0x94/0x168)
[    1.435917] [<c01cc490>] (__get_vm_area_node) from [<c01cd870>] 
(__vmalloc_node_range+0x58/0x1f4)
[    1.444825] [<c01cd870>] (__vmalloc_node_range) from [<c01cda50>] 
(__vmalloc_node+0x44/0x54)
[    1.453300] [<c01cda50>] (__vmalloc_node) from [<c01cdb1c>] 
(vzalloc+0x2c/0x3c)
[    1.460652] [<c01cdb1c>] (vzalloc) from [<c0382754>] 
(check_partition+0x38/0x1d4)
[    1.468177] [<c0382754>] (check_partition) from [<c03808d4>] 
(rescan_partitions+0x78/0x440)
[    1.476567] [<c03808d4>] (rescan_partitions) from [<c02131cc>] 
(__blkdev_get+0x25c/0x414)
[    1.484779] [<c02131cc>] (__blkdev_get) from [<c02134a8>] 
(blkdev_get+0x124/0x3e8)
[    1.492385] [<c02134a8>] (blkdev_get) from [<c037f138>] 
(__device_add_disk+0x404/0x4b8)
[    1.500432] [<c037f138>] (__device_add_disk) from [<c091b158>] 
(brd_init+0xb0/0x170)
[    1.508218] [<c091b158>] (brd_init) from [<c0102658>] 
(do_one_initcall+0x48/0x1a0)
[    1.515833] [<c0102658>] (do_one_initcall) from [<c0900dbc>] 
(kernel_init_freeable+0x100/0x1c8)
[    1.524579] [<c0900dbc>] (kernel_init_freeable) from [<c05fd9a4>] 
(kernel_init+0x8/0x11c)
[    1.532796] [<c05fd9a4>] (kernel_init) from [<c01010e8>] 
(ret_from_fork+0x14/0x2c)
[    1.540386] Exception stack(0xdf055fb0 to 0xdf055ff8)
[    1.545463] 5fa0:                                     00000000 
00000000 00000000 00000000
[    1.553671] 5fc0: 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 00000000
[    1.561875] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    1.568522] Code: e5922018 e59f129c e1520001 0a00002f (e5121018)
[    1.574733] ---[ end trace abfef683febb0cb6 ]---
[    1.579384] Kernel panic - not syncing: Fatal exception
[    1.584640] Rebooting in 180 seconds..

I checked the patches on drivers/dma/imx-sdma.c and "dmaengine: 
imx-sdma: fix use-after-free on probe error path" 
09593c25b975458025fd4cd15d5861cbaa33683d seems to describe the issue.... 
but not solving it for me. So that is why I put Sven in CC.

Also with 4.19.56 with our own patches on top, the kernel did not hang, 
but panicked. It looks like a timing problem inside the sdma driver. 
Because kernel did not crash always, sometimes it did boot. Also now, 
but only with 4.19.66+fslc with imx_v6_v7_defconfig it booted the first 
time correctly, after a reboot it panicked very late, I even got a login 
console, but then it rebooted again, but again good. Here the log:

[   49.763843] Unable to handle kernel paging request at virtual address 
a72e118d
[   49.772789] pgd = b60d9f54
[   49.775817] [a72e118d] *pgd=00000000
[   49.779501] Internal error: Oops: 5 [#1] SMP ARM
[   49.784152] Modules linked in:
[   49.787259] CPU: 0 PID: 455 Comm: ntpd Not tainted 
4.19.66-00020-g91d5756ab909 #3
[   49.794770] Hardware name: Freescale i.MX6 Ultralite (Device Tree)
[   49.800991] PC is at find_entry+0x5c/0xc4
[   49.805032] LR is at find_entry+0x88/0xc4
[   49.809073] pc : [<c03090fc>]    lr : [<c0309128>]    psr: a0070013
[   49.815365] sp : d96c9d40  ip : e9cb8463  fp : d96c9d74
[   49.820616] r10: 00000001  r9 : 00000002  r8 : d8864040
[   49.825870] r7 : d88640bc  r6 : c0e70108  r5 : d96c48fc  r4 : 0000000b
[   49.832425] r3 : 0000006e  r2 : 00000009  r1 : c0e70108  r0 : ffffffff
[   49.838982] Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  
Segment none
[   49.846146] Control: 10c5387d  Table: 996cc06a  DAC: 00000051
[   49.851924] Process ntpd (pid: 455, stack limit = 0x873acf61)
[   49.857699] Stack: (0xd96c9d40 to 0xd96ca000)
[   49.862095] 9d40: d96c9d74 d96c9d88 c0ba1030 c1132fb4 0000000b 
d8090040 d96c48c0 c1108908
[   49.870308] 9d60: d90f44d8 00000000 d96c9dbc d96c9d78 c030a94c 
c03090ac c02a2d04 d96c48fc
[   49.878519] 9d80: 00000001 00000000 c0294844 7d9fdb21 d96c9dbc 
00000000 d90f0f18 00000000
[   49.886732] 9da0: d96c9e90 d96c9f50 d96c48c0 d96c48c0 d96c9e8c 
d96c9dc0 c0294ff4 c030a8e4
[   49.894945] 9dc0: d96c9e7c d96c9dd0 c017eb8c c017e028 d96c48c0 
00000000 00000000 00000000
[   49.903157] 9de0: d90f44d8 00000041 00000000 d96c2140 00000004 
00000000 00000000 c1748cc0
[   49.911370] 9e00: 00000000 d96ae4f0 6ca44a47 00000000 dead4ead 
ffffffff ffffffff c193441c
[   49.919581] 9e20: 00000000 00000000 c0e795c8 d96c9e2c d96c9e2c 
00000000 dead4ead ffffffff
[   49.927794] 9e40: ffffffff c193441c 00000000 00000000 c0e795c8 
d96c9e2c d96c9e2c 7d9fdb21
[   49.936006] 9e60: 00000000 00000003 d96c9f50 d96c9e90 c1108908 
00000001 d96c8000 00000142
[   49.944219] 9e80: d96c9f44 d96c9e90 c02966e4 c02942a8 d8f0ad10 
d90f0f18 04ff40f7 0000000b
[   49.952433] 9ea0: d96dd021 60070013 d8e9d3d0 d8ed0960 d90f44d8 
00000101 c030ac14 0000005c
[   49.960645] 9ec0: 00000000 00000000 00000000 d96c9ed0 d96c9ef4 
d96c9ee0 c0ba1258 c0184904
[   49.968856] 9ee0: 00000000 d96acd24 d96c9f34 d96c9ef8 c02a80d4 
c0ba123c d96c9f34 00000000
[   49.977069] 9f00: d96dd000 00000000 00000000 00000002 ffffff9c 
ffffff9c d96dd000 7d9fdb21
[   49.985282] 9f20: d96c8000 00000003 c1108908 ffffff9c d96dd000 
c01011e4 d96c9f94 d96c9f48
[   49.993493] 9f40: c0281ccc c029667c d96ae000 00000001 00000000 
00000000 00000004 00000100
[   50.001704] 9f60: 00000001 7d9fdb21 00000000 00000003 01b9da68 
000003e6 00000142 c01011e4
[   50.009917] 9f80: d96c8000 00000142 d96c9fa4 d96c9f98 c0281dd0 
c0281bb4 00000000 d96c9fa8
[   50.018130] 9fa0: c0101000 c0281dc8 00000003 01b9da68 ffffff9c 
b6cd6c68 00000000 00000000
[   50.026343] 9fc0: 00000003 01b9da68 000003e6 00000142 b6f7c900 
0058ead8 bee697bc 0053b50c
[   50.034555] 9fe0: 00000142 bee696c8 b6c930d5 b6c1a6c6 20070030 
ffffff9c 00000000 00000000
[   50.042753] Backtrace:
[   50.045258] [<c03090a0>] (find_entry) from [<c030a94c>] 
(proc_sys_lookup+0x74/0x180)
[   50.053042]  r10:00000000 r9:d90f44d8 r8:c1108908 r7:d96c48c0 
r6:d8090040 r5:0000000b
[   50.060897]  r4:c1132fb4
[   50.063472] [<c030a8d8>] (proc_sys_lookup) from [<c0294ff4>] 
(path_openat+0xd58/0x108c)
[   50.071511]  r10:d96c48c0 r9:d96c48c0 r8:d96c9f50 r7:d96c9e90 
r6:00000000 r5:d90f0f18
[   50.079366]  r4:00000000
[   50.081939] [<c029429c>] (path_openat) from [<c02966e4>] 
(do_filp_open+0x74/0xe4)
[   50.089459]  r10:00000142 r9:d96c8000 r8:00000001 r7:c1108908 
r6:d96c9e90 r5:d96c9f50
[   50.097311]  r4:00000003
[   50.099884] [<c0296670>] (do_filp_open) from [<c0281ccc>] 
(do_sys_open+0x124/0x1ec)
[   50.107574]  r8:c01011e4 r7:d96dd000 r6:ffffff9c r5:c1108908 r4:00000003
[   50.114311] [<c0281ba8>] (do_sys_open) from [<c0281dd0>] 
(sys_openat+0x14/0x18)
[   50.121656]  r10:00000142 r9:d96c8000 r8:c01011e4 r7:00000142 
r6:000003e6 r5:01b9da68
[   50.129511]  r4:00000003
[   50.132083] [<c0281dbc>] (sys_openat) from [<c0101000>] 
(ret_fast_syscall+0x0/0x28)
[   50.139766] Exception stack(0xd96c9fa8 to 0xd96c9ff0)
[   50.144851] 9fa0:                   00000003 01b9da68 ffffff9c 
b6cd6c68 00000000 00000000
[   50.153063] 9fc0: 00000003 01b9da68 000003e6 00000142 b6f7c900 
0058ead8 bee697bc 0053b50c
[   50.161269] 9fe0: 00000142 bee696c8 b6c930d5 b6c1a6c6
[   50.166357] Code: e598a000 e06cc007 e1a0c24c e08cc18c (e79a610c)
[   50.172754] ---[ end trace 9e22ce3f534d2b3d ]---

Then I logged into the serial console, rebooted, and again a kernel 
panic, but much sooner :

[    3.711085] imx-sdma 20ec000.sdma: loaded firmware 3.5
[    3.739709] console [ttymxc0] enabled
[    3.743626] bootconsole [ec_imx6q0] disabled
[    4.078675] brd: module loaded
[    4.327831] loop: module loaded
[    4.343852] at24 0-0050: 256 byte 24c02 EEPROM, writable, 8 bytes/write
[    4.434753] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xdc
[    4.441437] nand: Micron MT29F4G08ABADAH4
[    4.445582] nand: 512 MiB, SLC, erase size: 128 KiB, page size: 2048, 
OOB size: 64
[    4.466637] Bad block table not found for chip 0
[    4.474598] Bad block table not found for chip 0
[    4.479535] Scanning device for bad blocks
[    7.108753] Bad block table written to 0x00001ffe0000, version 0x01
[    7.118100] Bad block table written to 0x00001ffc0000, version 0x01
[    7.125068] 1 cmdlinepart partitions found on MTD device gpmi-nand
[    7.131616] Creating 1 MTD partitions on "gpmi-nand":
[    7.137028] 0x000000000000-0x000020000000 : "nandflash"
[    7.166797] random: crng init done
[    8.081299] gpmi-nand 1806000.gpmi-nand: driver registered.
[    8.089377] Unable to handle kernel NULL pointer dereference at 
virtual address 00000070
[    8.098055] pgd = a7175e07
[    8.100896] [00000070] *pgd=00000000
[    8.104636] Internal error: Oops: 5 [#1] SMP ARM
[    8.109316] Modules linked in:
[    8.112459] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 
4.19.66-00020-g91d5756ab909 #3
[    8.120255] Hardware name: Freescale i.MX6 Ultralite (Device Tree)
[    8.126506] PC is at strcmp+0x18/0x44
[    8.130236] LR is at kset_find_obj+0x44/0x8c
[    8.134568] pc : [<c0b9358c>]    lr : [<c0b88054>]    psr: 20000013
[    8.140887] sp : d80a9e50  ip : d80a9e60  fp : d80a9e5c
[    8.146165] r10: 00000000  r9 : c1108930  r8 : c1108908
[    8.151444] r7 : d8139e88  r6 : c0edbd04  r5 : d8139e80  r4 : c0eba704
[    8.158023] r3 : 00000070  r2 : 00000066  r1 : c0edbd04  r0 : 00000070
[    8.164608] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  
Segment none
[    8.171797] Control: 10c5387d  Table: 8000406a  DAC: 00000051
[    8.177602] Process swapper/0 (pid: 1, stack limit = 0x0e667d51)
[    8.183664] Stack: (0xd80a9e50 to 0xd80aa000)
[    8.188084] 9e40:                                     d80a9e7c 
d80a9e60 c0b88054 c0b93580
[    8.196328] 9e60: c117f87c c105f984 c10a7dc4 c11d7ac0 d80a9e94 
d80a9e80 c0612c60 c0b8801c
[    8.204570] 9e80: c1174e28 c117f87c d80a9eac d80a9e98 c0612cf0 
c0612c50 c11d6970 c105f984
[    8.212813] 9ea0: d80a9ebc d80a9eb0 c0613d68 c0612c88 d80a9ecc 
d80a9ec0 c105f99c c0613d3c
[    8.221056] 9ec0: d80a9f4c d80a9ed0 c01031f4 c105f990 00000000 
c0f8f438 000000f7 dffffb00
[    8.229298] 9ee0: d80a9f4c d80a9ef0 c014f5a8 c1000710 00000000 
00000006 d8092000 00000000
[    8.237542] 9f00: 60000053 c11d6970 c11dc900 c11d7ac0 d80a9f34 
d80a9f20 c017bf04 7d9fdb21
[    8.245785] 9f20: c115d3c4 00000006 c1090850 c10a7dc4 c11dc900 
c11d7ac0 d80a8000 00000000
[    8.254027] 9f40: d80a9f94 d80a9f50 c10011d4 c0103178 00000006 
00000006 00000000 c1000704
[    8.262270] 9f60: c0ba1310 000000f7 d8092000 00000000 c0b99d14 
00000000 00000000 00000000
[    8.270511] 9f80: 00000000 00000000 d80a9fac d80a9f98 c0b99d24 
c1000f24 d8092000 00000000
[    8.278753] 9fa0: 00000000 d80a9fb0 c01010b4 c0b99d20 00000000 
00000000 00000000 00000000
[    8.286993] 9fc0: 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 00000000
[    8.295233] 9fe0: 00000000 00000000 00000000 00000000 00000013 
00000000 00000000 00000000
[    8.303456] Backtrace:
[    8.305993] [<c0b93574>] (strcmp) from [<c0b88054>] 
(kset_find_obj+0x44/0x8c)
[    8.313208] [<c0b88010>] (kset_find_obj) from [<c0612c60>] 
(driver_find+0x1c/0x38)
[    8.320846]  r7:c11d7ac0 r6:c10a7dc4 r5:c105f984 r4:c117f87c
[    8.326575] [<c0612c44>] (driver_find) from [<c0612cf0>] 
(driver_register+0x74/0x11c)
[    8.334465]  r4:c117f87c r3:c1174e28
[    8.338114] [<c0612c7c>] (driver_register) from [<c0613d68>] 
(__platform_driver_register+0x38/0x4c)
[    8.347215]  r5:c105f984 r4:c11d6970
[    8.350865] [<c0613d30>] (__platform_driver_register) from 
[<c105f99c>] (fsl_qspi_driver_init+0x18/0x20)
[    8.360415] [<c105f984>] (fsl_qspi_driver_init) from [<c01031f4>] 
(do_one_initcall+0x88/0x31c)
[    8.369103] [<c010316c>] (do_one_initcall) from [<c10011d4>] 
(kernel_init_freeable+0x2bc/0x3e8)
[    8.377871]  r10:00000000 r9:d80a8000 r8:c11d7ac0 r7:c11dc900 
r6:c10a7dc4 r5:c1090850
[    8.385750]  r4:00000006
[    8.388356] [<c1000f18>] (kernel_init_freeable) from [<c0b99d24>] 
(kernel_init+0x10/0x120)
[    8.396688]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 
r6:00000000 r5:c0b99d14
[    8.404567]  r4:00000000
[    8.407169] [<c0b99d14>] (kernel_init) from [<c01010b4>] 
(ret_from_fork+0x14/0x20)
[    8.414792] Exception stack(0xd80a9fb0 to 0xd80a9ff8)
[    8.419902] 9fa0:                                     00000000 
00000000 00000000 00000000
[    8.428143] 9fc0: 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 00000000
[    8.436379] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    8.443049]  r4:00000000 r3:d8092000
[    8.446690] Code: e24cb004 ea000001 e3530000 0a000008 (e4d03001)
[    8.453044] ---[ end trace b6f2a017d259fade ]---
[    8.457941] Kernel panic - not syncing: Attempted to kill init! 
exitcode=0x0000000b
[    8.457941]
[    8.467193] ---[ end Kernel panic - not syncing: Attempted to kill 
init! exitcode=0x0000000b
[    8.467193]  ]---

Kind regards,

Jürgen

>
> --
> Regards,
> Leonard
>

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