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Message-ID: <CAOMZO5C58--W1q+i26-+DBcton0Bk_o3zVfyuumM+Y=OemQ_Aw@mail.gmail.com>
Date: Wed, 8 Feb 2017 10:58:57 -0200
From: Fabio Estevam <festevam@...il.com>
To: Andrew Lunn <andrew@...n.ch>,
Florian Fainelli <f.fainelli@...il.com>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Kernel crashes in phy_attach_direct()
Hi,
I am getting the following kernel crash with linux-next 20170208
running on a imx53-qsb board.
Any ideas?
Thanks
Unable to handle kernel NULL pointer dereference at virtual address 00000008
pgd = c0004000
[00000008] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted
4.10.0-rc7-next-20170208-00001-ga13938c-dirty #230
Hardware name: Freescale i.MX53 (Device Tree Support)
task: df868000 task.stack: df85e000
PC is at phy_attach_direct+0x48/0x1a0
LR is at phy_connect_direct+0x1c/0x54
pc : [<c05eb634>] lr : [<c05eb874>] psr: 60000013
sp : df85fc58 ip : df85fc88 fp : df85fc84
r10: 00000000 r9 : 00000006 r8 : dfb32800
r7 : 00000000 r6 : df83c000 r5 : de124800 r4 : de124800
r3 : 00000000 r2 : c0e3f580 r1 : df940410 r0 : 00000000
Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
Control: 10c5387d Table: 70004019 DAC: 00000051
Process swapper/0 (pid: 1, stack limit = 0xdf85e210)
Stack: (0xdf85fc58 to 0xdf860000)
fc40: 00000006 de124800
fc60: de124800 c05f5228 c05f5228 00000006 c1647b14 00000200 df85fca4 df85fc88
fc80: c05eb874 c05eb5f8 df85fd18 de124800 df83c000 c05f5228 df85fccc df85fca8
fca0: c05eb8f4 c05eb864 00000000 df83c000 df85fcdb 00000000 dfaf6818 c1647b14
fcc0: df85fd74 df85fcd0 c05f4258 c05eb8b8 00000000 c05f2cfc 3683c62c 63656633
fce0: 2e303030 65687465 74656e72 0000312d 000003e8 000000c8 c0172258 c0171b08
fd00: 000003e8 000000c8 014000c0 df801c00 014000c0 00000000 65663336 30303063
fd20: 6874652e 656e7265 3a312d74 c0003030 df85fd74 df85fd40 c021f3fc c0999568
fd40: df85fd74 c05f7fac c05f3368 e09aa000 df83c000 dfaf6000 00000000 e09aa000
fd60: df83c000 dfaf6000 df85fdac df85fd78 c05f800c c05f415c 00000001 df83c62c
fd80: df85fdac df83c000 00000000 c0a68b18 df83c030 00000000 c0d6ab34 c1647b14
fda0: df85fdd4 df85fdb0 c0789de8 c05f7d98 df85fdd4 df83c000 df83c000 00000001
fdc0: 00001003 00001002 df85fdfc df85fdd8 c078a0a0 c0789d44 df83c000 df83c138
fde0: 00001002 00001002 00000000 c0d6ab34 df85fe24 df85fe00 c078a184 c078a01c
fe00: c0d6ab34 df83c000 00000001 00001002 0000016b c0d6ab34 df85fedc df85fe28
fe20: c0d54f50 c078a170 00000000 00000001 c0d5f858 c0d00618 df85fe84 df85fe48
fe40: c0d6ac61 c01727d8 00000001 00000002 00000000 c07eed64 00000000 c07eedd0
fe60: 60000013 df868000 c0e6c9c4 c0e6c9c4 c0e6c9e4 00000000 c0e6c9c4 00000000
fe80: c0e6c9c4 c0e6c9e4 df85feac df85fe98 c099e8a0 c01770cc c0e09d08 c0e6c9e4
fea0: df85fecc df85feb0 c07eedd0 c099e884 ffffe000 ffffe000 c0d54d54 c0d5f854
fec0: c0ccd430 00000000 c0d5f858 c0d00618 df85ff4c df85fee0 c0101934 c0d54d60
fee0: c0d00634 c040eea4 dfffcb00 c0a22e58 df85ff4c df85ff00 c01470c0 c0d00624
ff00: 00000000 00000000 00000007 00000007 00000000 c0ccd430 c0bcebdc 00000000
ff20: c0e17e34 00000007 c0e75000 c0d71cc4 c0e75000 c0d5f854 c0ccd430 000000eb
ff40: df85ff94 df85ff50 c0d00e6c c01018fc 00000007 00000007 00000000 c0d00618
ff60: 00000000 00000008 c0996d7c 00000000 c0996d7c 00000000 00000000 00000000
ff80: 00000000 00000000 df85ffac df85ff98 c0996d8c c0d00d50 00000000 c0996d7c
ffa0: 00000000 df85ffb0 c0107df0 c0996d88 00000000 00000000 00000000 00000000
ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
Backtrace:
[<c05eb5ec>] (phy_attach_direct) from [<c05eb874>]
(phy_connect_direct+0x1c/0x54)
r10:00000200 r9:c1647b14 r8:00000006 r7:c05f5228 r6:c05f5228 r5:de124800
r4:de124800 r3:00000006
[<c05eb858>] (phy_connect_direct) from [<c05eb8f4>] (phy_connect+0x48/0x80)
r7:c05f5228 r6:df83c000 r5:de124800 r4:df85fd18
[<c05eb8ac>] (phy_connect) from [<c05f4258>] (fec_enet_mii_probe+0x108/0x170)
r9:c1647b14 r8:dfaf6818 r7:00000000 r6:df85fcdb r5:df83c000 r4:00000000
[<c05f4150>] (fec_enet_mii_probe) from [<c05f800c>] (fec_enet_open+0x280/0x34c)
r6:dfaf6000 r5:df83c000 r4:e09aa000
[<c05f7d8c>] (fec_enet_open) from [<c0789de8>] (__dev_open+0xb0/0x118)
r10:c1647b14 r9:c0d6ab34 r8:00000000 r7:df83c030 r6:c0a68b18 r5:00000000
r4:df83c000
[<c0789d38>] (__dev_open) from [<c078a0a0>] (__dev_change_flags+0x90/0x154)
r7:00001002 r6:00001003 r5:00000001 r4:df83c000
[<c078a010>] (__dev_change_flags) from [<c078a184>]
(dev_change_flags+0x20/0x50)
r9:c0d6ab34 r8:00000000 r7:00001002 r6:00001002 r5:df83c138 r4:df83c000
[<c078a164>] (dev_change_flags) from [<c0d54f50>] (ip_auto_config+0x1fc/0xfe4)
r9:c0d6ab34 r8:0000016b r7:00001002 r6:00000001 r5:df83c000 r4:c0d6ab34
[<c0d54d54>] (ip_auto_config) from [<c0101934>] (do_one_initcall+0x44/0x178)
r10:c0d00618 r9:c0d5f858 r8:00000000 r7:c0ccd430 r6:c0d5f854 r5:c0d54d54
r4:ffffe000
[<c01018f0>] (do_one_initcall) from [<c0d00e6c>]
(kernel_init_freeable+0x128/0x1e8)
r8:000000eb r7:c0ccd430 r6:c0d5f854 r5:c0e75000 r4:c0d71cc4
[<c0d00d44>] (kernel_init_freeable) from [<c0996d8c>] (kernel_init+0x10/0x118)
r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0996d7c
r4:00000000
[<c0996d7c>] (kernel_init) from [<c0107df0>] (ret_from_fork+0x14/0x24)
r5:c0996d7c r4:00000000
Code: ebef0412 e3500000 0a00004c e594307c (e5930008)
---[ end trace 494dc60949caf878 ]---
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