Dear Thomas,
On 2016-01-10 18:12, Thomas Pietrowski wrote:
Hello everyone,
as I'm trying to build a kernel with support on different boards, I
found different problems. I'm writing here to samsung-soc first,
because I'm not sure whether it is just a Odroid-U3 or Samsung SoC
related problem.
So first there is .config.working.old:
This .config is working very well and has (as far as I remember) no
other boards except Samsung SoC's enabled.
Then I noticed when using .config.warn.skbuff the warning in dmesg.
I'm not sure (100%) whether it appeared before, but I appeared while
transferring a lot of small data.
Additonally I also got another warning when enabled more boards
(resulting in .config.warn.ftrace).
I confirm this warning. Please report it to ARM kernel mailing list. It is
not really related to Samsung Exynos SoC support.
After enabling all boards by different vendors in the menu at xconfig.
I started enabling other targets at "System Type", where you can find
Rockchip for example. Enabling Rockchip* or Xilinx* was no problem,
but then I enabled "WonderMedia WM8850 (ARCH_WM8850)", see
.config.broken.no_ttySAC1_mmcblk0p1.first, and during boot an oops
appears. The same symptom appears when enabling "Annapurna Labs Alpine
platform (ARCH_ALPINE)", where autofs4 oops's
(.config.broken.no_ttySAC1_mmcblk0p1.autofs4.tty).
Can someone at least confirm these problems?
Are they related to our platform? If not you can redirect this mail to
a more general mailing-list of course :)
Those problems also don't look like related to Exynos platform. I suspect
that enabling those platforms adds support for a driver, which is not
multi-platform friendly and it messes in the system when no hardware
has been detected. I've checked .config.broken.no_ttySAC1_mmcblk0p1.first
config and I also got a panic message (although a bit different):
[ 2.702200] Freeing unused kernel memory: 1084K (c0c03000 - c0d12000)
[ 2.733048] Internal error: Oops - undefined instruction: 0 [#1]
PREEMPT SMP THUMB2
[ 2.739301] Modules linked in:
[ 2.742339] CPU: 3 PID: 29 Comm: kworker/u8:1 Tainted: G W
4.4.0-testing #10983
[ 2.750757] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[ 2.756844] Workqueue: deferwq deferred_probe_work_func
[ 2.762039] task: ee688600 ti: ee69e000 task.ti: ee69e000
[ 2.767425] PC is at mvebu_soc_device+0x2e/0x9c
[ 2.771937] LR is at __device_attach_driver+0x1f/0x4c
[ 2.776970] pc : [<c0c0c0c2>] lr : [<c05831a3>] psr: a0000053
[ 2.776970] sp : ee69fe70 ip : c058318d fp : c0e12e34
[ 2.788426] r10: 00000001 r9 : 00000000 r8 : c0d15588
[ 2.793637] r7 : c0583185 r6 : edc1a210 r5 : ee69feac r4 : c0c908dc
[ 2.800146] r3 : c0c0c0c0 r2 : 00000000 r1 : c0c908dc r0 : edc1a210
[ 2.806657] Flags: NzCv IRQs on FIQs off Mode SVC_32 ISA ARM
Segment none
[ 2.813862] Control: 50c5387d Table: 4020404a DAC: 00000051
[ 2.819592] Process kworker/u8:1 (pid: 29, stack limit = 0xee69e220)
[ 2.825927] Stack: (0xee69fe70 to 0xee6a0000)
[ 2.830265] fe60: c0c908dc
00000000 ee69feac c05818cf
[ 2.838427] fe80: 40000053 ee4b8c70 edc1ecb8 dc8ba600 edc1a210
c0d15588 edc1a210 edc1a244
[ 2.846589] fea0: 00000001 c0582d05 ee556000 edc1a210 00000001
dc8ba600 edc1a210 c0dc9978
[ 2.854746] fec0: edc1a210 c0dc9b70 ed946e00 c05824ff 00000000
edc1a210 c0dc9978 c0dc9990
[ 2.862902] fee0: c0e1a328 c0582863 c0582831 c0dc99ac ee59b100
ee43b814 ee43b800 c02549a1
[ 2.871061] ff00: ee69ff10 ee43b848 ee43b800 ee43b800 ee59b118
ee43b814 ee69e000 ee43b848
[ 2.879221] ff20: c0e12a82 ee43b800 ee59b100 c0254cd3 c07b2581
c0d15100 ee43b964 00000000
[ 2.887379] ff40: 00000000 00000000 ee5ca0c0 ee59b100 c0254bd9
00000000 00000000 00000000
[ 2.895539] ff60: 00000000 c0258d27 00000000 c0c0c0c0 ee59b100
00000000 00000000 ee69ff7c
[ 2.903698] ff80: ee69ff7c 00000000 00000000 ee69ff8c ee69ff8c
dc8ba600 ee69ffa0 ee5ca0c0
[ 2.911857] ffa0: c0258c79 00000000 00000000 c02100f5 00000000
00000000 00000000 00000000
[ 2.920016] ffc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 2.928176] ffe0: 00000000 00000000 00000000 00000000 00000013
00000000 c0c0c0c0 c0c0c0c0
[ 2.936344] [<c05831a3>] (__device_attach_driver) from [<c05818cf>]
(bus_for_each_drv+0x4f/0x7c)
[ 2.945103] [<c05818cf>] (bus_for_each_drv) from [<c0582d05>]
(__device_attach+0x81/0xe8)
[ 2.953261] [<c0582d05>] (__device_attach) from [<c05824ff>]
(bus_probe_device+0x5b/0x60)
[ 2.961421] [<c05824ff>] (bus_probe_device) from [<c0582863>]
(deferred_probe_work_func+0x33/0xa4)
[ 2.970367] [<c0582863>] (deferred_probe_work_func) from [<c02549a1>]
(process_one_work+0xe1/0x318)
[ 2.979391] [<c02549a1>] (process_one_work) from [<c0254cd3>]
(worker_thread+0xfb/0x388)
[ 2.987463] [<c0254cd3>] (worker_thread) from [<c0258d27>]
(kthread+0xaf/0xc4)
[ 2.994669] [<c0258d27>] (kthread) from [<c02100f5>]
(ret_from_fork+0x11/0x1c)
[ 3.001870] Code: def0e7fd def0e7fd def0e7fd def0e7fd (def0e7fd)
[ 3.007946] ---[ end trace f24b6c88ae00fa9c ]---
[ 3.012651] Unable to handle kernel paging request at virtual address
ffffffec
[ 3.019747] pgd = c0204000
[ 3.022437] [ffffffec] *pgd=6fffd861, *pte=00000000, *ppte=00000000
[ 3.028690] Internal error: Oops: 37 [#2] PREEMPT SMP THUMB2
[ 3.034329] Modules linked in:
[ 3.037370] CPU: 3 PID: 29 Comm: kworker/u8:1 Tainted: G D
W 4.4.0-testing #10983
[ 3.045786] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[ 3.051869] task: ee688600 ti: ee69e000 task.ti: ee69e000
[ 3.057247] PC is at kthread_data+0xa/0x10
[ 3.061327] LR is at wq_worker_sleeping+0xf/0x9c
[ 3.065926] pc : [<c025923a>] lr : [<c025556b>] psr: 000000f3
[ 3.065926] sp : ee69fc10 ip : c0259237 fp : 00000003
[ 3.077381] r10: ee688904 r9 : c0d160e0 r8 : c0d102c0
[ 3.082590] r7 : ee69fc30 r6 : 00000000 r5 : eedbc2c0 r4 : 00000003
[ 3.089099] r3 : 00000000 r2 : 00000000 r1 : 00000003 r0 : ee688600
[ 3.095611] Flags: nzcv IRQs off FIQs off Mode SVC_32 ISA Thumb
Segment none
[ 3.103075] Control: 50c5387d Table: 4020404a DAC: 00000051
[ 3.108803] Process kworker/u8:1 (pid: 29, stack limit = 0xee69e220)
[ 3.115140] Stack: (0xee69fc10 to 0xee6a0000)
[ 3.119482] fc00: 00000020
ee688600 eedbc2c0 c07b2133
[ 3.127642] fc20: edd5dc80 c024559b c0d160e0 ee69e000 00009b33
c07b257b 00000001 ee69e000
[ 3.135801] fc40: ee69f9dc ee69fc74 ee69fc60 ee68887c 00000000
c0c0c0c6 ee528000 c07b257b
[ 3.143960] fc60: 0420806c ee688600 ee69fc74 c02455f1 ee69fde0
ee69fc74 ee69fc74 dc8ba600
[ 3.152120] fc80: c0e27404 c0e27404 c0d1b00c c0d15588 ee69fde0
200000d3 0000000b c0c0c0c6
[ 3.160278] fca0: 00000001 c0213e03 ee69e220 0000000b c0e100c8
c0d1b00c 00000000 ee69e000
[ 3.168438] fcc0: 00000000 00000008 00000000 64000400 65306665
20646637 30666564 64663765
[ 3.176597] fce0: 66656420 66376530 65642064 37653066 28206466
30666564 64663765 00002029
[ 3.184756] fd00: c07b5193 dc8ba600 ee69fd18 00000000 00030001
00000004 ee69fde0 c0d15588
[ 3.192915] fd20: c0c0c0c2 00000001 c0e12e34 c020a171 00000006
00000000 c0d1606c 00000004
[ 3.201075] fd40: 00000000 00030001 c0c0c0c2 00000001 c0339ab3
eeda2300 edf16648 c02692b5
[ 3.209234] fd60: eeda2300 edf16648 00079bb9 00079bb9 00000000
c02692b5 000000b3 00000000
[ 3.217393] fd80: a269731b 00000000 ee69fd98 00000000 eedbc300
00000000 ee69fdc0 c0277157
[ 3.225552] fda0: 00000000 ee688648 eedbc300 c0267a97 ee688648
c0267a97 eeda2300 dc8ba600
[ 3.233711] fdc0: c0c0c0c4 c0c0c0c4 a0000053 ffffffff ee69fe14
c0d15588 00000000 c07b5835
[ 3.241870] fde0: edc1a210 c0c908dc 00000000 c0c0c0c0 c0c908dc
ee69feac edc1a210 c0583185
[ 3.250030] fe00: c0d15588 00000000 00000001 c0e12e34 c058318d
ee69fe70 c05831a3 c0c0c0c2
[ 3.258189] fe20: a0000053 ffffffff 00000051 00000001 c07b4ded
00000000 ee69fe48 00000000
[ 3.266348] fe40: 00000000 c0262189 edc1ecb8 ee69fe84 edc1ec38
c07b4ded edc1ecc4 c07b1245
[ 3.274507] fe60: 00000070 c0d4608c 00000000 c05818cf c0c908dc
00000000 ee69feac c05818cf
[ 3.282667] fe80: 40000053 ee4b8c70 edc1ecb8 dc8ba600 edc1a210
c0d15588 edc1a210 edc1a244
[ 3.290826] fea0: 00000001 c0582d05 ee556000 edc1a210 00000001
dc8ba600 edc1a210 c0dc9978
[ 3.298985] fec0: edc1a210 c0dc9b70 ed946e00 c05824ff 00000000
edc1a210 c0dc9978 c0dc9990
[ 3.307144] fee0: c0e1a328 c0582863 c0582831 c0dc99ac ee59b100
ee43b814 ee43b800 c02549a1
[ 3.315303] ff00: ee69ff10 ee43b848 ee43b800 ee43b800 ee59b118
ee43b814 ee69e000 ee43b848
[ 3.323463] ff20: c0e12a82 ee43b800 ee59b100 c0254cd3 c07b2581
c0d15100 ee43b964 00000000
[ 3.331622] ff40: 00000000 00000000 ee5ca0c0 ee59b100 c0254bd9
00000000 00000000 00000000
[ 3.339781] ff60: 00000000 c0258d27 00000000 c0c0c0c0 ee59b100
00000000 00000000 ee69ff7c
[ 3.347940] ff80: ee69ff7c 00000001 00010001 ee69ff8c ee69ff8c
dc8ba600 ee69ffa0 ee5ca0c0
[ 3.356099] ffa0: c0258c79 00000000 00000000 c02100f5 00000000
00000000 00000000 00000000
[ 3.364258] ffc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 3.372418] ffe0: 00000000 00000000 00000000 00000000 00000013
00000000 c0c0c0c0 c0c0c0c0
[ 3.380581] [<c025923a>] (kthread_data) from [<c025556b>]
(wq_worker_sleeping+0xf/0x9c)
[ 3.388569] [<c025556b>] (wq_worker_sleeping) from [<c07b2133>]
(__schedule+0x28b/0x568)
[ 3.396638] [<c07b2133>] (__schedule) from [<c07b257b>]
(schedule+0x37/0x70)
[ 3.403669] [<c07b257b>] (schedule) from [<c02455f1>]
(do_exit+0x601/0x868)
[ 3.410612] [<c02455f1>] (do_exit) from [<c0213e03>] (die+0x383/0x3a0)
[ 3.417121] [<c0213e03>] (die) from [<c020a171>]
(do_undefinstr+0x15d/0x188)
[ 3.424153] [<c020a171>] (do_undefinstr) from [<c07b5835>]
(__und_svc_finish+0x1/0x4c)
[ 3.432047] Exception stack(0xee69fde0 to 0xee69fe28)
[ 3.437084] fde0: edc1a210 c0c908dc 00000000 c0c0c0c0 c0c908dc
ee69feac edc1a210 c0583185
[ 3.445243] fe00: c0d15588 00000000 00000001 c0e12e34 c058318d
ee69fe70 c05831a3 c0c0c0c2
[ 3.453400] fe20: a0000053 ffffffff
[ 3.456878] [<c07b5835>] (__und_svc_finish) from [<c0c0c0c2>]
(mvebu_soc_device+0x2e/0x9c)
[ 3.465121] Code: f7bd fd2d f8d0 32d4 (f853) 0c14
[ 3.469893] ---[ end trace f24b6c88ae00fa9d ]---
If you have some time, you may check which exactly driver or kconfig option
causes the problem by enabling them one by one. Right now I have no time to
debug this issue further. It definitely looks like a bug introduced by
non-Exynos platform.
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
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