Message-ID: <c8280798-453e-bd1d-bd4d-bf0956a169cc@gmx.de>
Date:   Sat, 26 Nov 2016 08:53:27 +0100
From:   Heinrich Schuchardt <heinrich.schuchardt@....de>
To:     Carlo Caione <carlo@...one.org>,
        Kevin Hilman <khilman@...libre.com>
Cc:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org,
        lkml <linux-kernel@...r.kernel.org>
Subject: net: stmmac: Meson GXBB: attempting to execute userspace memory

For Odroid C2 I have compiled kernel
4.9.0-rc6-next-20161124-00001-gbf7e142
with one additional patch
https://github.com/xypron/kernel-odroid-c2/blob/master/patch/0001-stmmac-RTL8211F-Meson-GXBB-TX-throughput-problems.patch

I repeatedly see faults like the one below:

[ 2557.400796] Unhandled fault: synchronous external abort (0x92000010)
at 0x000040001e8ee4b0
[ 2557.952413] CPU: 0 PID: 22837 Comm: cc1 Tainted: G      D
4.9.0-rc6-next-20161124-00001-gbf7e142 #1
[ 2557.962062] Hardware name: Hardkernel ODROID-C2 (DT)
[ 2557.966980] task: ffff80006ddb7080 task.stack: ffff80006dd9c000
[ 2557.972846] PC is at 0x6a0d98
[ 2557.975776] LR is at 0x6a0e54
[ 2557.978709] pc : [<00000000006a0d98>] lr : [<00000000006a0e54>]
pstate: 80000000
[ 2557.986040] sp : 0000fffff3ee5f80
[ 2557.989318] x29: 0000fffff3ee5f80 x28: 000040000b3f1240
[ 2557.994578] x27: 00000000012a7000 x26: 000040000b3f1288
[ 2557.999840] x25: 0000000000f58f88 x24: 000040000b3f1240
[ 2558.005101] x23: 0000000000000000 x22: 0000000000000001
[ 2558.010362] x21: 0000000000000001 x20: 000040000b3f1250
[ 2558.015623] x19: 0000000000000054 x18: 0000000000000001
[ 2558.020885] x17: 0000400008acaa10 x16: 0000000001285050
[ 2558.026146] x15: 000040000ad96dc8 x14: 000000000000001f
[ 2558.031407] x13: 000040000b3f1270 x12: 000040000b3f1258
[ 2558.036668] x11: 0000000001347000 x10: 0000000000000661
[ 2558.041930] x9 : 0000000000000005 x8 : 0000000000000003
[ 2558.047191] x7 : 000040000b3f1240 x6 : 0000000020020033
[ 2558.052452] x5 : 000040000b402020 x4 : 000040000b3e1aa0
[ 2558.057713] x3 : 000000000000000c x2 : 0000000000000020
[ 2558.062974] x1 : 0000000000f45000 x0 : 0000000000000065
[ 2558.068235]
[ 2558.069712] Internal error: Attempting to execute userspace memory:
8600000f [#7] PREEMPT SMP
[ 2558.078155] Modules linked in: meson_rng rng_core meson_gxbb_wdt
ip_tables x_tables ipv6 dwmac_generic realtek dwmac_meson8b
stmmac_platform stmmac
[ 2558.091267] CPU: 0 PID: 22837 Comm: cc1 Tainted: G      D
4.9.0-rc6-next-20161124-00001-gbf7e142 #1
[ 2558.100925] Hardware name: Hardkernel ODROID-C2 (DT)
[ 2558.105841] task: ffff80006ddb7080 task.stack: ffff80006dd9c000
[ 2558.111706] PC is at 0x6a0e54
[ 2558.114638] LR is at 0x6a0e54
[ 2558.117571] pc : [<00000000006a0e54>] lr : [<00000000006a0e54>]
pstate: 600003c5
[ 2558.124902] sp : ffff80006dd9fec0
[ 2558.128179] x29: 0000000000000000 x28: ffff80006ddb7080
[ 2558.133441] x27: 00000000012a7000 x26: 000040000b3f1288
[ 2558.138702] x25: 0000000000f58f88 x24: 000040000b3f1240
[ 2558.143963] x23: 0000000080000000 x22: 00000000006a0d98
[ 2558.149225] x21: ffffffffffffffff x20: 000080006e223000
[ 2558.154486] x19: 0000000000000000 x18: 0000000000000010
[ 2558.159747] x17: 0000400008acaa10 x16: 0000000001285050
[ 2558.165008] x15: ffff000088e91f07 x14: 0000000000000006
[ 2558.170270] x13: ffff000008e91f15 x12: 000000000000000f
[ 2558.175531] x11: 0000000000000002 x10: 00000000000002ea
[ 2558.180792] x9 : ffff80006dd9fb40 x8 : 0000000000010a8b
[ 2558.186053] x7 : 0000000000000000 x6 : 000000000000020e
[ 2558.191315] x5 : 00000000020f020e x4 : 0000000000000000
[ 2558.196576] x3 : 0000000000000000 x2 : 000000000000020f
[ 2558.201837] x1 : ffff80006ddb7080 x0 : 0000000000000000
[ 2558.207098]
[ 2558.208565] Process cc1 (pid: 22837, stack limit = 0xffff80006dd9c000)
[ 2558.215035] Stack: (0xffff80006dd9fec0 to 0xffff80006dda0000)
[ 2558.220728] fec0: 0000000000000065 0000000000f45000 0000000000000020
000000000000000c
[ 2558.228490] fee0: 000040000b3e1aa0 000040000b402020 0000000020020033
000040000b3f1240
[ 2558.236253] ff00: 0000000000000003 0000000000000005 0000000000000661
0000000001347000
[ 2558.244015] ff20: 000040000b3f1258 000040000b3f1270 000000000000001f
000040000ad96dc8
[ 2558.251778] ff40: 0000000001285050 0000400008acaa10 0000000000000001
0000000000000054
[ 2558.259540] ff60: 000040000b3f1250 0000000000000001 0000000000000001
0000000000000000
[ 2558.267303] ff80: 000040000b3f1240 0000000000f58f88 000040000b3f1288
00000000012a7000
[ 2558.275065] ffa0: 000040000b3f1240 0000fffff3ee5f80 00000000006a0e54
0000fffff3ee5f80
[ 2558.282828] ffc0: 00000000006a0d98 0000000080000000 0000000000000003
ffffffffffffffff
[ 2558.290590] ffe0: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2558.298351] Call trace:
[ 2558.300769] Exception stack(0xffff80006dd9fcf0 to 0xffff80006dd9fe20)
[ 2558.307149] fce0:                                   0000000000000000
0001000000000000
[ 2558.314913] fd00: ffff80006dd9fec0 00000000006a0e54 ffff800073acf500
0000000000000004
[ 2558.322675] fd20: 0000000000000000 ffff000008dbbc18 ffff80006ddb7080
000000006dd9fdd0
[ 2558.330438] fd40: ffff80006dd9fd90 ffff0000080ca878 ffff80006dd9fe40
ffff80006ddb7080
[ 2558.338200] fd60: 0000000000000004 00000000000003c0 ffff80006dd9fe40
000040000b3f1240
[ 2558.345963] fd80: 0000000000f58f88 000040000b3f1288 0000000000000000
ffff80006ddb7080
[ 2558.353725] fda0: 000000000000020f 0000000000000000 0000000000000000
00000000020f020e
[ 2558.361487] fdc0: 000000000000020e 0000000000000000 0000000000010a8b
ffff80006dd9fb40
[ 2558.369250] fde0: 00000000000002ea 0000000000000002 000000000000000f
ffff000008e91f15
[ 2558.377012] fe00: 0000000000000006 ffff000088e91f07 0000000001285050
0000400008acaa10
[ 2558.384775] [<00000000006a0e54>] 0x6a0e54
[ 2558.388743] Code: d503201f f9400280 2a1703e1 97ffff0a (aa0003f3)
[ 2558.395241] ---[ end trace 7d280955c14d4ff1 ]---
[ 2558.584022] Bad mode in Error handler detected on CPU0, code
0xbf000000 -- SError
[ 2558.585871] CPU: 0 PID: 22867 Comm: cc1 Tainted: G      D
4.9.0-rc6-next-20161124-00001-gbf7e142 #1
[ 2558.595527] Hardware name: Hardkernel ODROID-C2 (DT)
[ 2558.600444] task: ffff80007454d780 task.stack: ffff8000660bc000
[ 2558.606310] PC is at 0x631928
[ 2558.609240] LR is at 0xb59ce0
[ 2558.612172] pc : [<0000000000631928>] lr : [<0000000000b59ce0>]
pstate: 80000000
[ 2558.619503] sp : 0000ffffed764d90
[ 2558.622782] x29: 0000ffffed764d90 x28: 0000000000000028
[ 2558.628042] x27: 000000001a1062f0 x26: 0000000001299198
[ 2558.633303] x25: 0000000000000001 x24: 0000000000000000
[ 2558.638564] x23: 0000000000000004 x22: 00000000013513c8
[ 2558.643825] x21: 0000400039d43488 x20: 0000000000000000
[ 2558.649086] x19: 0000400039d2d730 x18: 0000000000000000
[ 2558.654348] x17: 0000400039a7c378 x16: 0000000001285138
[ 2558.659609] x15: 0000000000000001 x14: 0000000000000000
[ 2558.664870] x13: ffffff0000000000 x12: 0000000000000000
[ 2558.670131] x11: 0000000000000028 x10: 000000000129b2b8
[ 2558.675393] x9 : 0000000000000041 x8 : 0000000000000003
[ 2558.680654] x7 : 0000000000000050 x6 : 000000000003d2c8
[ 2558.685915] x5 : 0000000000000002 x4 : 0000000000000004
[ 2558.691176] x3 : 0000000000000003 x2 : 0000000001349000
[ 2558.696438] x1 : 000000000003cb90 x0 : 0000400039d45050
[ 2558.701699]
[ 2558.703177] Internal error: Attempting to execute userspace memory:
8600000f [#8] PREEMPT SMP
[ 2558.711618] Modules linked in: meson_rng rng_core meson_gxbb_wdt
ip_tables x_tables ipv6 dwmac_generic realtek dwmac_meson8b
stmmac_platform stmmac
[ 2558.724731] CPU: 0 PID: 22867 Comm: cc1 Tainted: G      D
4.9.0-rc6-next-20161124-00001-gbf7e142 #1
[ 2558.734388] Hardware name: Hardkernel ODROID-C2 (DT)
[ 2558.739304] task: ffff80007454d780 task.stack: ffff8000660bc000
[ 2558.745169] PC is at 0xb59ce0
[ 2558.748102] LR is at 0xb59ce0
[ 2558.751035] pc : [<0000000000b59ce0>] lr : [<0000000000b59ce0>]
pstate: 600003c5
[ 2558.758365] sp : ffff8000660bfec0
[ 2558.761643] x29: 0000000000000000 x28: ffff80007454d780
[ 2558.766904] x27: 000000001a1062f0 x26: 0000000001299198
[ 2558.772165] x25: 0000000000000001 x24: 0000000000000000
[ 2558.777426] x23: 0000000080000000 x22: 0000000000631928
[ 2558.782688] x21: ffffffffffffffff x20: 000080006e223000
[ 2558.787949] x19: 0000000000000000 x18: 0000000000000010
[ 2558.793210] x17: 0000400039a7c378 x16: 0000000001285138
[ 2558.798471] x15: ffff000088e91f07 x14: 0000000000000006
[ 2558.803733] x13: ffff000008e91f15 x12: 000000000000000f
[ 2558.808994] x11: 0000000000000002 x10: 0000000000000336
[ 2558.814255] x9 : ffff8000660bfb40 x8 : 00000000000ab503
[ 2558.819516] x7 : 0000000000000000 x6 : 00000000000000dd
[ 2558.824778] x5 : 0000000000de00dd x4 : 0000000000000000
[ 2558.830039] x3 : 0000000000000000 x2 : 00000000000000de
[ 2558.835300] x1 : ffff80007454d780 x0 : 0000000000000000
[ 2558.840561]
[ 2558.842029] Process cc1 (pid: 22867, stack limit = 0xffff8000660bc000)
[ 2558.848498] Stack: (0xffff8000660bfec0 to 0xffff8000660c0000)
[ 2558.854191] fec0: 0000400039d45050 000000000003cb90 0000000001349000
0000000000000003
[ 2558.861953] fee0: 0000000000000004 0000000000000002 000000000003d2c8
0000000000000050
[ 2558.869716] ff00: 0000000000000003 0000000000000041 000000000129b2b8
0000000000000028
[ 2558.877478] ff20: 0000000000000000 ffffff0000000000 0000000000000000
0000000000000001
[ 2558.885241] ff40: 0000000001285138 0000400039a7c378 0000000000000000
0000400039d2d730
[ 2558.893003] ff60: 0000000000000000 0000400039d43488 00000000013513c8
0000000000000004
[ 2558.900766] ff80: 0000000000000000 0000000000000001 0000000001299198
000000001a1062f0
[ 2558.908529] ffa0: 0000000000000028 0000ffffed764d90 0000000000b59ce0
0000ffffed764d90
[ 2558.916291] ffc0: 0000000000631928 0000000080000000 000000001a18c000
ffffffffffffffff
[ 2558.924053] ffe0: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2558.931814] Call trace:
[ 2558.934232] Exception stack(0xffff8000660bfcf0 to 0xffff8000660bfe20)
[ 2558.940613] fce0:                                   0000000000000000
0001000000000000
[ 2558.948376] fd00: ffff8000660bfec0 0000000000b59ce0 ffff800073acf640
0000000000000004
[ 2558.956138] fd20: 0000000000000000 ffff000008dbbc18 ffff80007454d780
00000000660bfdd0
[ 2558.963901] fd40: ffff8000660bfd90 ffff0000080ca878 ffff8000660bfe40
ffff80007454d780
[ 2558.971663] fd60: 0000000000000004 00000000000003c0 ffff8000660bfe40
0000000000000000
[ 2558.979426] fd80: 0000000000000001 0000000001299198 0000000000000000
ffff80007454d780
[ 2558.987188] fda0: 00000000000000de 0000000000000000 0000000000000000
0000000000de00dd
[ 2558.994951] fdc0: 00000000000000dd 0000000000000000 00000000000ab503
ffff8000660bfb40
[ 2559.002713] fde0: 0000000000000336 0000000000000002 000000000000000f
ffff000008e91f15
[ 2559.010476] fe00: 0000000000000006 ffff000088e91f07 0000000001285138
0000400039a7c378
[ 2559.018238] [<0000000000b59ce0>] 0xb59ce0
[ 2559.022207] Code: d2800001 d2800002 d2800500 97eb5e9d (a9007c1f)
[ 2559.028376] ---[ end trace 7d280955c14d4ff2 ]---
[ 2559.034397] Bad mode in Error handler detected on CPU2, code
0xbf000000 -- SError
[ 2559.040235] CPU: 2 PID: 22866 Comm: gcc Tainted: G      D
4.9.0-rc6-next-20161124-00001-gbf7e142 #1
[ 2559.049892] Hardware name: Hardkernel ODROID-C2 (DT)
[ 2559.054808] task: ffff80007454e400 task.stack: ffff80006de9c000
[ 2559.060674] PC is at 0x40003c0400d8
[ 2559.064122] LR is at 0x46d4e0
[ 2559.067055] pc : [<000040003c0400d8>] lr : [<000000000046d4e0>]
pstate: 80000000
[ 2559.074385] sp : 0000ffffe6387270
[ 2559.077664] x29: 0000ffffe6387270 x28: 0000000016c0ff90
[ 2559.082924] x27: 0000000000000002 x26: 0000000000000001
[ 2559.088185] x25: 0000ffffe63873f4 x24: 0000ffffe63873f8
[ 2559.093447] x23: 0000ffffe63873f4 x22: 0000ffffe63873f8
[ 2559.098708] x21: 0000000016c104e0 x20: 0000000000005953
[ 2559.103969] x19: 0000000000000000 [ 2559.107102] Unhandled fault:
synchronous external abort (0x96000010) at 0xffff800000c1e000
[ 2559.107108] Internal error: : 96000010 [#9] PREEMPT SMP
[ 2559.107110] Modules linked in:
[ 2559.107113]  meson_rng rng_core meson_gxbb_wdt ip_tables x_tables
ipv6 dwmac_generic realtek dwmac_meson8b stmmac_platform stmmac[
2559.107131] CPU: 0 PID: 1124 Comm: mmcqd/1 Tainted: G      D     1
[ 2559.107132] Hardware name: Hardkernel ODROID-C2 (DT)
[ 2559.107135] task: ffff8000704abe80 task.stack: ffff8000734d0000
[ 2559.107147] PC is at __memcpy+0x100/0x180
[ 2559.107152] LR is at sg_copy_buffer+0xb0/0x110
[ 2559.107155] pc : [<ffff00000837ee00>] lr : [<ffff00000838e928>]
pstate: 200001c5
[ 2559.107155] sp : ffff8000734d3bb0
[ 2559.107157] x29: ffff8000734d3bb0
[ 2559.107158] x28: ffff800073a14800 x27: ffff800073a14b68
[ 2559.107162] x26: 0000000000000000 x25: 0000000000000140
[ 2559.107165] x24: 0000000000000001 x23: 0000000000001000
[ 2559.107168] x22: ffff8000746a2000 x21: 0000000000001000
[ 2559.107170] x20: 0000000000000000 x19: 0000000000001000
[ 2559.107172] x18: 0000000000000000 x17: ffffffffffffffff
[ 2559.107175] x16: 00000000000006be x15: ffff000008c34000
[ 2559.107178] x14: 747962342e090a34 x13: 3278302038323162
[ 2559.107181] x12: 656c752e090a3864 x11: ffff800073866800
[ 2559.107183] x10: ffff80006bf68eb0 x9 : 0000000000000000
[ 2559.107186] x8 : ffff800073a94920 x7 : 0000000000000000
[ 2559.107188] x6 : ffff8000746a2000 x5 : 0000820000000000
[ 2559.107191] x4 : 0000000000000000 x3 : 0000000000000000
[ 2559.107193] x2 : 0000000000000f80 x1 : ffff800000c1e000
[ 2559.107196] x0 : ffff8000746a2000
[ 2559.107199] Process mmcqd/1 (pid: 1124, stack limit = 0xffff8000734d0000)
[ 2559.107202] Stack: (0xffff8000734d3bb0 to 0xffff8000734d4000)
[ 2559.107205] 3ba0:                                   ffff8000734d3c50
ffff00000838e9bc
[ 2559.107208] 3bc0: ffff800073a14000 ffff800073a14a30 ffff80006bf68eb0
ffff800073a14a28
[ 2559.107212] 3be0: ffff800073a14818 ffff800073a14800 0000000000000000
ffff00000838e1c4
[ 2559.107215] 3c00: ffff800073a94900 ffff7e0000030780 ffff800000c1e000
0000000000001000
[ 2559.107218] 3c20: 0000000000001000 ffff800073ad0a00 0000000100000000
0000000000000001
[ 2559.107221] 3c40: 0000100000000000 0000000000000005 ffff8000734d3c60
ffff00000874c1bc
[ 2559.107224] 3c60: ffff8000734d3c70 ffff000008748010 ffff8000734d3cd0
ffff000008749908
[ 2559.107228] 3c80: ffff80006bf68eb0 ffff800073a14000 ffff8000734c8000
ffff800073a14818
[ 2559.107231] 3ca0: ffff800073a14800 ffff800073a14800 ffff80006bf68eb0
ffff800073a14a28
[ 2559.107234] 3cc0: ffff80006bf68eb0 ffff000008749bc8 ffff8000734d3d70
ffff00000874b298
[ 2559.107237] 3ce0: ffff800073a14000 ffff800073a14818 ffff8000734c8000
0000000000000000
[ 2559.107240] 3d00: ffff800073a14800 ffff800073a14800 ffff800073a13800
0000000000000000
[ 2559.107243] 3d20: ffff80006bf68eb0 0000000000000000 00000000012853f0
ffff000008c0fcb8
[ 2559.107246] 3d40: 0000000000000000 000000000835bf14 ffff000008a05f58
ffff800000000000
[ 2559.107249] 3d60: ffff8000734c8000 0000000000000001 ffff8000734d3de0
ffff00000874b6f4
[ 2559.107252] 3d80: ffff800073a14818 ffff80006bf68eb0 ffff8000734c8000
0000000000000001
[ 2559.107255] 3da0: ffff800073a14828 0000000000000000 0000000000000000
0000000000000000
[ 2559.107258] 3dc0: 0000000000000000 0000000000000000 ffff800073a14818
ffff00000874b6c4
[ 2559.107261] 3de0: ffff8000734d3e20 ffff0000080daa84 ffff800073a94980
ffff000008e8eb08
[ 2559.107264] 3e00: ffff000008b75b50 ffff800073a14818 ffff00000874b658
0000000000000000
[ 2559.107267] 3e20: 0000000000000000 ffff000008082ec0 ffff0000080da9b8
ffff800073a94980
[ 2559.107270] 3e40: 0000000000000000 0000000000000000 0000000000000000
000003ff01893600
[ 2559.107273] 3e60: ffff8000734d3ea0 0000000000000000 ffff0000080da9b8
ffff800073a14818
[ 2559.107276] 3e80: 0000000000000000 0000000000000000 ffff8000734d3e90
ffff8000734d3e90
[ 2559.107279] 3ea0: 0000000000000000 ffff000000000000 ffff8000734d3eb0
ffff8000734d3eb0
[ 2559.107281] 3ec0: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2559.107284] 3ee0: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2559.107287] 3f00: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2559.107290] 3f20: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2559.107293] 3f40: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2559.107295] 3f60: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2559.107298] 3f80: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2559.107300] 3fa0: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2559.107303] 3fc0: 0000000000000000 0000000000000005 0000000000000000
0000000000000000
[ 2559.107306] 3fe0: 0000000000000000 0000000000000000 0000001800002cba
26000000a01b3800
[ 2559.107308] Call trace:
[ 2559.107312] Exception stack(0xffff8000734d39e0 to 0xffff8000734d3b10)
[ 2559.107315] 39e0: 0000000000001000 0001000000000000 ffff8000734d3bb0
ffff00000837ee00
[ 2559.107318] 3a00: 0000000000000007 ffff800000000000 ffff800000c1e000
0000000100100010
[ 2559.107321] 3a20: ffff8000734d3ac0 ffff000008748d88 ffff8000734d3b8c
0000000000000001
[ 2559.107324] 3a40: ffff8000734d3b40 ffff0000081c9dac ffff800074401d00
ffff0000081745d8
[ 2559.107327] 3a60: ffff7e0001b72f80 ffff80006dcbe300 00000000031fda40
0000000000000000
[ 2559.107330] 3a80: ffff8000746a2000 ffff800000c1e000 0000000000000f80
0000000000000000
[ 2559.107333] 3aa0: 0000000000000000 0000820000000000 ffff8000746a2000
0000000000000000
[ 2559.107336] 3ac0: ffff800073a94920 0000000000000000 ffff80006bf68eb0
ffff800073866800
[ 2559.107339] 3ae0: 656c752e090a3864 3278302038323162 747962342e090a34
ffff000008c34000
[ 2559.107341] 3b00: 00000000000006be ffffffffffffffff
[ 2559.107346] [<ffff00000837ee00>] __memcpy+0x100/0x180
[ 2559.107349] [<ffff00000838e9bc>] sg_copy_to_buffer+0x14/0x20
[ 2559.107357] [<ffff00000874c1bc>] mmc_queue_bounce_pre+0x34/0x40
[ 2559.107362] [<ffff000008748010>] mmc_blk_rw_rq_prep+0x288/0x3a0
[ 2559.107365] [<ffff000008749908>] mmc_blk_issue_rw_rq+0x3c0/0x998
[ 2559.107368] [<ffff00000874b298>] mmc_blk_issue_rq+0x150/0x510
[ 2559.107371] [<ffff00000874b6f4>] mmc_queue_thread+0x9c/0x140
[ 2559.107377] [<ffff0000080daa84>] kthread+0xcc/0xe0
[ 2559.107383] [<ffff000008082ec0>] ret_from_fork+0x10/0x50
[ 2559.107387] Code: d503201f d503201f d503201f d503201f (a8c12027)
[ 2559.107409] ---[ end trace 7d280955c14d4ff3 ]---
[ 2559.107417] note: mmcqd/1[1124] exited with preempt_count 1
[ 2559.688313] x18: 0000000000040900 x17: 0000000000590578 x16:
000040003c0400a8
[ 2559.695471] x15: 000000000000065c x14: 0000000000000000
[ 2559.700733] x13: 002f362f756e672d x12: 78756e696c2d3436
[ 2559.705994] x11: 0000000000000001 x10: 0101010101010101
[ 2559.711255] x9 : 0000000000000001 x8 : 0000000000000104
[ 2559.716516] x7 : 000000000046d448 x6 : 0000ffffe63873f4
[ 2559.721778] x5 : 0000ffffe63873f8 x4 : 0000000000000000
[ 2559.727039] x3 : 0000000000000000 x2 : 0000000000000000
[ 2559.732300] x1 : 0000000016c104e0 x0 : 0000000000005953
[ 2559.737561]
[ 2559.739036] Internal error: Attempting to execute userspace memory:
8600000f [#10] PREEMPT SMP
[ 2559.747566] Modules linked in: meson_rng rng_core meson_gxbb_wdt
ip_tables x_tables ipv6 dwmac_generic realtek dwmac_meson8b
stmmac_platform stmmac
[ 2559.760678] CPU: 2 PID: 22866 Comm: gcc Tainted: G      D
4.9.0-rc6-next-20161124-00001-gbf7e142 #1
[ 2559.770337] Hardware name: Hardkernel ODROID-C2 (DT)
[ 2559.775254] task: ffff80007454e400 task.stack: ffff80006de9c000
[ 2559.781118] PC is at 0x46d4e0
[ 2559.784051] LR is at 0x46d4e0
[ 2559.786983] pc : [<000000000046d4e0>] lr : [<000000000046d4e0>]
pstate: 600003c5
[ 2559.794314] sp : ffff80006de9fec0
[ 2559.797591] x29: 0000000000000000 x28: ffff80007454e400
[ 2559.802853] x27: 0000000000000002 x26: 0000000000000001
[ 2559.808114] x25: 0000ffffe63873f4 x24: 0000ffffe63873f8
[ 2559.813375] x23: 0000000080000000 x22: 000040003c0400d8
[ 2559.818636] x21: ffffffffffffffff x20: 000080006e24d000
[ 2559.823898] x19: 0000000000000000 x18: 0000000000000010
[ 2559.829159] x17: 0000000000590578 x16: 000040003c0400a8
[ 2559.834420] x15: ffff000088e91f07 x14: 0000000000000006
[ 2559.839682] x13: ffff000008e91f15 x12: 000000000000000f
[ 2559.844943] x11: 0000000000000002 x10: 00000000000003f4
[ 2559.850204] x9 : ffff80006de9fb40 x8 : 00000000000b4119
[ 2559.855465] x7 : 0000000000000000 x6 : 000000000000019d
[ 2559.860726] x5 : 00000000019e019d x4 : 0000000000000000
[ 2559.865988] x3 : 0000000000000002 x2 : 000000000000019e
[ 2559.871249] x1 : ffff80007454e400 x0 : 0000000000000000
[ 2559.876510]
[ 2559.877977] Process gcc (pid: 22866, stack limit = 0xffff80006de9c000)
[ 2559.884446] Stack: (0xffff80006de9fec0 to 0xffff80006dea0000)
[ 2559.890140] fec0: 0000000000005953 0000000016c104e0 0000000000000000
0000000000000000
[ 2559.897902] fee0: 0000000000000000 0000ffffe63873f8 0000ffffe63873f4
000000000046d448
[ 2559.905664] ff00: 0000000000000104 0000000000000001 0101010101010101
0000000000000001
[ 2559.913427] ff20: 78756e696c2d3436 002f362f756e672d 0000000000000000
000000000000065c
[ 2559.921190] ff40: 000040003c0400a8 0000000000590578 0000000000040900
0000000000000000
[ 2559.928952] ff60: 0000000000005953 0000000016c104e0 0000ffffe63873f8
0000ffffe63873f4
[ 2559.936714] ff80: 0000ffffe63873f8 0000ffffe63873f4 0000000000000001
0000000000000002
[ 2559.944477] ffa0: 0000000016c0ff90 0000ffffe6387270 000000000046d4e0
0000ffffe6387270
[ 2559.952240] ffc0: 000040003c0400d8 0000000080000000 0000000000005953
ffffffffffffffff
[ 2559.960002] ffe0: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2559.967762] Call trace:
[ 2559.970179] Exception stack(0xffff80006de9fcf0 to 0xffff80006de9fe20)
[ 2559.976561] fce0:                                   0000000000000000
0001000000000000
[ 2559.984324] fd00: ffff80006de9fec0 000000000046d4e0 ffff80007366f8c0
0000000000000004
[ 2559.992087] fd20: 0000000000000000 ffff000008dbbc18 ffff80007454e400
000000006de9fdd0
[ 2559.999850] fd40: ffff80006de9fd90 ffff0000080ca878 ffff80006de9fe40
ffff80007454e400
[ 2560.007612] fd60: 0000000000000004 00000000000003c0 ffff80006de9fe40
0000ffffe63873f8
[ 2560.015374] fd80: 0000ffffe63873f4 0000000000000001 0000000000000000
ffff80007454e400
[ 2560.023137] fda0: 000000000000019e 0000000000000002 0000000000000000
00000000019e019d
[ 2560.030899] fdc0: 000000000000019d 0000000000000000 00000000000b4119
ffff80006de9fb40
[ 2560.038662] fde0: 00000000000003f4 0000000000000002 000000000000000f
ffff000008e91f15
[ 2560.046425] fe00: 0000000000000006 ffff000088e91f07 000040003c0400a8
0000000000590578
[ 2560.054186] [<000000000046d4e0>] 0x46d4e0
[ 2560.058155] Code: aa1503e1 2a1403e0 52800002 97fe895d (2a0003e1)
[ 2560.064244] ---[ end trace 7d280955c14d4ff4 ]---

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