Register dump failed for colibri-imx6ull

Hi team,

kernel version : Linux colibri-imx6ull 4.9.84-+gb2a7f2f #2 SMP Thu Jan 21 17:56:57 IST 2018 armv7l GNU/Linux

I got kernel crash when trying to register dump using the below command. please check the below error log. do we need to do any extra configuration for that?

 **ethtool -d eth0**

[   95.060318] Unhandled fault: external abort on non-linefetch (0x1008) at 0xa09100f4
[   95.068154] pgd = 94c5c000
[   95.070963] [a09100f4] *pgd=94005811, *pte=020b4653, *ppte=020b4453
[   95.077462] Internal error: : 1008 [#1] SMP ARM
[   95.082097] Modules linked in: rfcomm(O) bnep(O) mwifiex_sdio(O) mwifiex(O) cfg80211(O) btmrvl_sdio(O) btmrvl(O) bluetooth(O) compat(O) flexcan can_dev libcomposite configfs
[   95.098294] CPU: 0 PID: 1405 Comm: ethtool Tainted: G           O    4.9.144-2.8.5+g5758a8e #26
[   95.107171] Hardware name: Freescale i.MX6 UltraLite (Device Tree)
[   95.113468] task: 9476a840 task.stack: 94880000
[   95.118129] PC is at fec_enet_get_regs+0x64/0xac
[   95.122869] LR is at irq_work_queue+0x80/0x90
[   95.127345] pc : [<80552b6c>]    lr : [<801abe1c>]    psr: 800d0013
[   95.127345] sp : 94881da8  ip : 94881c60  fp : 94881dd4
[   95.139017] r10: 94881e10  r9 : a0910000  r8 : 8084b0b8
[   95.144353] r7 : 8084af08  r6 : a13e2000  r5 : 809c555c  r4 : 8084af54
[   95.150999] r3 : 000000f4  r2 : a09100f4  r1 : 97b8e3bc  r0 : 00000060
[   95.157648] Flags: Nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[   95.164904] Control: 10c5387d  Table: 94c5c06a  DAC: 00000051
[   95.170762] Process ethtool (pid: 1405, stack limit = 0x94880210)
[   95.176969] Stack: (0x94881da8 to 0x94882000)
[   95.181456] 1da0:                   000008fe 8084b990 943c8000 8084b990 a13e2000 00000000
[   95.189829] 1dc0: ffffe000 01f66150 94881e84 94881dd8 806bd3ec 80552b14 80c616c0 801ce7f4
[   95.198201] 1de0: 80c616c0 00000002 00000000 94995790 00014913 00000020 00000004 00000004
[   95.206574] 1e00: 94881e24 94881e10 801cf01c 801cee5c 00000004 00000000 00004000 94881e28
[   95.214948] 1e20: 801cfd18 801cefa4 94995790 9740d75f 94881ea4 94881e40 801eadc0 8011518c
[   95.223321] 1e40: 01f66000 00000055 80c5a4e4 80c59380 94881e74 94881e60 807f61b8 00008946
[   95.231693] 1e60: 80c59380 7eb0ac38 00000000 94881e90 00000000 00000036 94881edc 94881e88
[   95.240065] 1e80: 806d0dec 806bb5f8 00000817 01f69000 30687465 00000000 00000000 00000000
[   95.248437] 1ea0: 01f66150 00000000 00000000 00000000 945fc380 00008946 fffffdfd 7eb0ac38
[   95.256809] 1ec0: 80c59380 7eb0ac38 94880000 00000036 94881efc 94881ee0 806962d8 806d0a30
[   95.265181] 1ee0: 7eb0ac38 923377a0 9497e3c0 00000003 94881f7c 94881f00 8021d014 806961d0
[   95.273553] 1f00: 00000000 94995478 94881f7c 94881f18 801efaac 801ba10c 94995488 00000000
[   95.281925] 1f20: 00000000 00001f66 00000000 94881f38 806960d0 00001f66 00000021 00100073
[   95.290297] 1f40: 00000000 94995790 01f87000 94880000 94881f7c 9497e3c0 9497e3c0 00000003
[   95.298669] 1f60: 00008946 7eb0ac38 94880000 00000036 94881fa4 94881f80 8021d8e4 8021cf78
[   95.307043] 1f80: 7eb0ac30 01f66150 7eb0ab44 00000036 80107d84 94880000 00000000 94881fa8
[   95.315415] 1fa0: 80107ba0 8021d8b4 7eb0ac30 01f66150 00000003 00008946 7eb0ac38 00000004
[   95.323787] 1fc0: 7eb0ac30 01f66150 7eb0ab44 00000036 00000001 7eb0ac38 00004000 00000000
[   95.332159] 1fe0: 0005d04c 7eb0aa84 00018c60 76eac6cc 200d0010 00000003 00000000 00000000
[   95.340496] Backtrace: 
[   95.343113] [<80552b08>] (fec_enet_get_regs) from [<806bd3ec>] (dev_ethtool+0x1e00/0x28c8)
[   95.351581]  r9:01f66150 r8:ffffe000 r7:00000000 r6:a13e2000 r5:8084b990 r4:943c8000
[   95.359530] [<806bb5ec>] (dev_ethtool) from [<806d0dec>] (dev_ioctl+0x3c8/0x8f8)
[   95.367121]  r10:00000036 r9:00000000 r8:94881e90 r7:00000000 r6:7eb0ac38 r5:80c59380
[   95.375116]  r4:00008946
[   95.377788] [<806d0a24>] (dev_ioctl) from [<806962d8>] (sock_ioctl+0x114/0x2c8)
[   95.385295]  r10:00000036 r9:94880000 r8:7eb0ac38 r7:80c59380 r6:7eb0ac38 r5:fffffdfd
[   95.393291]  r4:00008946
[   95.395952] [<806961c4>] (sock_ioctl) from [<8021d014>] (do_vfs_ioctl+0xa8/0x93c)
[   95.403617]  r7:00000003 r6:9497e3c0 r5:923377a0 r4:7eb0ac38
[   95.409406] [<8021cf6c>] (do_vfs_ioctl) from [<8021d8e4>] (SyS_ioctl+0x3c/0x60)
[   95.416906]  r10:00000036 r9:94880000 r8:7eb0ac38 r7:00008946 r6:00000003 r5:9497e3c0
[   95.424901]  r4:9497e3c0
[   95.427561] [<8021d8a8>] (SyS_ioctl) from [<80107ba0>] (ret_fast_syscall+0x0/0x48)
[   95.435325]  r9:94880000 r8:80107d84 r7:00000036 r6:7eb0ab44 r5:01f66150 r4:7eb0ac30
[   95.443257] Code: ea000000 e5943000 e3c33003 e0892003 (e5922000) 
[   95.449475] ---[ end trace 1f1805b4abc9173c ]---

Hi @all

any update for the issue ??

Regrads,

Nikunj

Hi @nikunjp26

Could you share your changes in local.conf?
What is your kernel .config?

Best regards,
Jaski

Hi @jaski.tx

Please check attachment : link text

Hi @hitendra_prajapati

Thanks for the files. I can reproduce the error on my side. I created internally a ticket for this.

Once I got more Information, I will come back to you.

Best regards,
Jaski

Hi @jaski.tx

Any update for this ??

Regards,
Hitendra

No, unfortunately not.

HI @jaski.tx

any update on this ??

No. This issue is not planned yet. I will let you know once it is planned.