Hello,
I am using the Yocto “stock” image for BBB (kirkstone). After building the image, every time I reboot the board I get an issue with kworker as presented in line 307 and onward- the board then does not boot:
Boot log: U-Boot SPL 2023.04-gb0d717b732 (Dec 06 2023 - 15:11:45 +0000)Trying to boot fr - Pastebin.com
This happens always when I run a reboot. This happens sometimes when I restart via power recycle… What could be the root cause of this? I would appreciate all help.
Further tests show that it seems that this happens during boot:
Once this happens, I need to re-power cycle in a loop, until the image boots again. Once this happens, a “dirty” power recycle will cause this again. Given the above log, the abnormal part starts at line 277:
[ 11.196823] 8<--- cut here ---
[ 11.199991] Unhandled fault: external abort on non-linefetch (0x1008) at 0xe036f010
[ 11.207867] [e036f010] *pgd=839bd811, *pte=47400653, *ppte=47400453
[ 11.214340] Internal error: : 1008 [#1] PREEMPT SMP ARM
[ 11.219719] Modules linked in:
[ 11.222864] CPU: 0 PID: 23 Comm: kworker/u2:1 Not tainted 6.1.46+ #1
[ 11.229403] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 11.235670] Workqueue: events_unbound deferred_probe_work_func
[ 11.241692] PC is at sysc_reset+0x12c/0x210
[ 11.246009] LR is at sysc_probe+0xf90/0x1560
[ 11.250401] pc : [<c091bc48>] lr : [<c091cef4>] psr: 20000013
[ 11.256846] sp : e0065be0 ip : 00000001 fp : c108f5b8
[ 11.262213] r10: 00000001 r9 : c108f5b8 r8 : 00000000
[ 11.267584] r7 : c23360c0 r6 : e036f010 r5 : 00000015 r4 : c3b9d640
[ 11.274294] r3 : e036f010 r2 : 00000014 r1 : 10002900 r0 : e036f000
[ 11.281004] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[ 11.288347] Control: 10c5387d Table: 80004019 DAC: 00000051
[ 11.294253] Register r0 information: 0-page vmalloc region starting at 0xe036f000 allocated at devm_ioremap+0x4c
[ 11.305192] Register r1 information: non-paged memory
[ 11.310391] Register r2 information: non-paged memory
[ 11.315588] Register r3 information: 0-page vmalloc region starting at 0xe036f000 allocated at devm_ioremap+0x4c
[ 11.326513] Register r4 information: slab kmalloc-256 start c3b9d600 pointer offset 64 size 256
[ 11.335490] Register r5 information: non-paged memory
[ 11.340686] Register r6 information: 0-page vmalloc region starting at 0xe036f000 allocated at devm_ioremap+0x4c
[ 11.351607] Register r7 information: slab task_struct start c23360c0 pointer offset 0
[ 11.359680] Register r8 information: NULL pointer
[ 11.364519] Register r9 information: non-slab/vmalloc memory
[ 11.370342] Register r10 information: non-paged memory
[ 11.375629] Register r11 information: non-slab/vmalloc memory
[ 11.381539] Register r12 information: non-paged memory
[ 11.386823] Process kworker/u2:1 (pid: 23, stack limit = 0x(ptrval))
[ 11.393361] Stack: (0xe0065be0 to 0xe0066000)
[ 11.397845] 5be0: c3b9d640 c1806b00 c3b83c10 c091cef4 00000001 00000000 c1617a4c c1323b1c
[ 11.406253] 5c00: c3b83c10 c1806b00 00000001 c3b83c10 c23360c0 c13239c8 00000001 00000001
[ 11.414665] 5c20: 00000003 27a61206 00000000 00000000 c3b83c10 c1704234 00000000 c23360c0
[ 11.423076] 5c40: df95a084 00000000 c1711ab4 c0a90878 c3b83c10 00000000 c1704234 c0a8d95c
[ 11.431486] 5c60: c3b83d10 c0a9d6f8 c3b83c10 c3b83c10 c1704234 c3b83c10 00000059 c0a8dd0c
[ 11.439896] 5c80: c1711ab4 c0fd9f94 c180dcac c1704234 c3b83c10 00000059 c23360c0 c0a8de98
[ 11.448307] 5ca0: 00000001 c1704234 e0065cfc c3b83c10 c23360c0 c0a8e570 00000000 e0065cfc
[ 11.456718] 5cc0: c23360c0 c0a8e4d0 c23360c0 c0a8b65c c3b83c54 c215176c c24a6f38 27a61206
[ 11.465131] 5ce0: 00000001 c3b83c10 00000001 c23360c0 c3b83c54 c0a8e158 df95aee0 c3b83c10
[ 11.473542] 5d00: 00000001 27a61206 df95a090 c3b83c10 c1712048 c3b83c10 c21c3010 c0a8c9f8
[ 11.481954] 5d20: c3b83c10 00000000 c180dc80 c0a8a09c 00000200 00000000 00000000 00000000
[ 11.490368] 5d40: 00000000 27a61206 00000001 c3b83c00 c21c3010 00000000 c1617a4c df95a0dc
[ 11.498779] 5d60: 00000000 c23360c0 00000001 c0cfd924 df95a078 c1617980 c1617a30 00000000
[ 11.507189] 5d80: c1617a4c c0cfdc14 00000000 27a61206 00000000 00000000 c21c3010 00000001
[ 11.515600] 5da0: c21c3010 47400000 47400003 ff8f5114 00000200 00000000 00000000 00000000
[ 11.524012] 5dc0: 00000000 27a61206 60000013 df95a078 df92ef30 00000000 c1617980 c21c3010
[ 11.532421] 5de0: 00000001 00000000 c202b80d c0cfdf44 00000001 c1711df4 c21c3010 df92ef30
[ 11.540835] 5e00: c1617980 00000000 c1711df4 c135026c c1781f10 c0919954 00000000 c21c3010
[ 11.549248] 5e20: c1704150 c0a90878 c21c3010 00000000 c1704150 c0a8d95c c21c3110 c0a9d6f8
[ 11.557660] 5e40: c21c3010 c21c3010 c1704150 c21c3010 00000001 c0a8dd0c c202b80d c0fd9f94
[ 11.566073] 5e60: c180dcac c1704150 c21c3010 00000001 c1711df4 c0a8de98 00000001 c1704150
[ 11.574483] 5e80: e0065ed4 c21c3010 c1711df4 c0a8e570 00000000 e0065ed4 c23360c0 c0a8e4d0
[ 11.582893] 5ea0: c1711df4 c0a8b65c c21c3054 c215176c c24a64b8 27a61206 fffffff3 c21c3010
[ 11.591303] 5ec0: 00000001 c23360c0 c21c3054 c0a8e158 c21c3010 c21c3010 00000001 27a61206
[ 11.599713] 5ee0: 00000000 c2221954 c1712048 c21c3010 c1711d9c c0a8c9f8 c2221954 c21c3010
[ 11.608124] 5f00: c1711d98 c0a8d43c c1711dc8 c230a900 c2006a00 c202b800 00000000 00000040
[ 11.616536] 5f20: c23360c0 c01511a0 df918980 c23360c0 c2006a00 c0fd9bd4 e0009e9c c230a900
[ 11.624944] 5f40: c2006a00 c230a918 c2006a1c c1604d40 00000088 c23360c0 c2006a00 c0151a4c
[ 11.633354] 5f60: 00000000 c1767ce4 00000000 c2317c00 c23360c0 c015186c c230a900 c2317d40
[ 11.641765] 5f80: e0029ebc 00000000 00000000 c0158ddc c2317c00 c0158cec 00000000 00000000
[ 11.650175] 5fa0: 00000000 00000000 00000000 c0100148 00000000 00000000 00000000 00000000
[ 11.658586] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 11.667001] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[ 11.675426] sysc_reset from sysc_probe+0xf90/0x1560
[ 11.680541] sysc_probe from platform_probe+0x64/0xc4
[ 11.685750] platform_probe from really_probe+0xd8/0x3f4
[ 11.691220] really_probe from __driver_probe_device+0x94/0x1e8
[ 11.697312] __driver_probe_device from driver_probe_device+0x38/0xc8
[ 11.703941] driver_probe_device from __device_attach_driver+0xa0/0x114
[ 11.710750] __device_attach_driver from bus_for_each_drv+0x84/0xc8
[ 11.717216] bus_for_each_drv from __device_attach+0xb0/0x200
[ 11.723137] __device_attach from bus_probe_device+0x8c/0x94
[ 11.728961] bus_probe_device from device_add+0x3c4/0x7e0
[ 11.734522] device_add from of_platform_device_create_pdata+0x98/0xc8
[ 11.741266] of_platform_device_create_pdata from of_platform_bus_create+0x1d4/0x338
[ 11.749249] of_platform_bus_create from of_platform_populate+0x80/0x124
[ 11.756152] of_platform_populate from simple_pm_bus_probe+0x9c/0xc4
[ 11.762695] simple_pm_bus_probe from platform_probe+0x64/0xc4
[ 11.768702] platform_probe from really_probe+0xd8/0x3f4
[ 11.774169] really_probe from __driver_probe_device+0x94/0x1e8
[ 11.780264] __driver_probe_device from driver_probe_device+0x38/0xc8
[ 11.786892] driver_probe_device from __device_attach_driver+0xa0/0x114
[ 11.793701] __device_attach_driver from bus_for_each_drv+0x84/0xc8
[ 11.800159] bus_for_each_drv from __device_attach+0xb0/0x200
[ 11.806078] __device_attach from bus_probe_device+0x8c/0x94
[ 11.811902] bus_probe_device from deferred_probe_work_func+0xa4/0xe8
[ 11.818530] deferred_probe_work_func from process_one_work+0x1e0/0x4f4
[ 11.825355] process_one_work from worker_thread+0x1e0/0x4d0
[ 11.831190] worker_thread from kthread+0xf0/0x120
[ 11.836135] kthread from ret_from_fork+0x14/0x2c
[ 11.840981] Exception stack(0xe0065fb0 to 0xe0065ff8)
[ 11.846175] 5fa0: 00000000 00000000 00000000 00000000
[ 11.854587] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 11.863000] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 11.869808] Code: e5865000 e3530000 baffffd0 e0803003 (e5933000)
[ 11.876073] ---[ end trace 0000000000000000 ]---
[ 11.880821] note: kworker/u2:1[23] exited with irqs disabled
What could be wrong with this image…?
For sanity check, I have removed the meta-ti-bsp and ‘meta-ti-extras’ from the bitbake layers. I added the meta-yocto-bsp back. This problem does not occur anymore and the image always boots…
Same problem using meta-ti-bsp.
Thanks for the info @marcel85 . I confirmed this issue with another tester as well. No ack from the meta-ti mailing list though…