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 ]---