linux-imx (2.6.35.3): Disable NAPI
commit
0a9469a14c5 (linux-imx (2.6.35.3): Enable FEC_NAPI in the MX5 defconfig)
enabled NAPI support on mx5 defconfig and causes the following kernel crash:
Starting advanced power management daemon: kernel BUG at include/linux/netdevice.h:462!
Unable to handle kernel NULL pointer dereference at virtual address
00000000
apmd.
apmd[1613]: apmd 3.2.1 interfacimxc_ipu mxc_ipu: Channel already disabled 9
mxc_ipu mxc_ipu: Channel already uninitialized 9
ng with apm driver 1.13 and APM BIOS 1.2
pgd =
df79c000
[
00000000] *pgd=
cf598031, *pte=
00000000, *ppte=
00000000
Internal error: Oops: 817 [#1] PREEMPT
last sysfs file: /sys/devices/platform/mxc_sdc_fb.1/graphics/fb0/mode
Modules linked in:
CPU: 0 Not tainted (2.6.35.3-maintain+yocto+g2796ca6 #1)
PC is at __bug+0x1c/0x28
LR is at __bug+0x18/0x28
pc : [<
80035c28>] lr : [<
80035c24>] psr:
600f0013
sp :
df635e38 ip :
e08fe000 fp :
00008914
r10:
7ebf48e0 r9 :
00000000 r8 :
00000001
r7 :
00009002 r6 :
00000001 r5 :
8045406c r4 :
df011000
r3 :
00000000 r2 :
df635e2c r1 :
807a3d2b r0 :
00000033
Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control:
10c5387d Table:
cf79c019 DAC:
00000015
Process connmand (pid: 1589, stack limit = 0xdf6342e8)
Stack: (0xdf635e38 to 0xdf636000)
5e20:
00000000 802a833c
5e40:
df011000 000000e2 df011000 8045406c 00000001 00009002 00000001 00000000
5e60:
7ebf48e0 80376224 803761a8 df011000 ffff9003 80376464 00008914 df011000
5e80:
00009002 df422000 df011000 80376554 00000000 df42200c df422000 803b8438
5ea0:
df634000 00000000 30687465 00000000 00000000 00000000 00009003 00000000
5ec0:
00000000 00000000 00000000 00008914 803639d4 7ebf48e0 808cdebc 80033004
5ee0:
df634000 00093250 7ebf48e0 80363be0 0000c000 df561000 803639d4 7ebf48e0
5f00:
00008914 800d5c78 0000c000 7ebf48e0 df561000 00008914 0000000d 800d66d8
5f20:
00000003 80712c08 808cdce8 df634000 00093250 800c964c 00000000 0000000d
5f40:
de289c00 df635f84 00080000 803641ec df634000 df052800 de28e800 00000000
5f60:
00000000 7ebf48e0 df561000 00008914 0000000d 80033004 df634000 00093250
5f80:
7ebf4cf4 800d6760 0000000d 00000000 7ebf48e0 0000000d 00000000 00000001
5fa0:
00000036 80032e80 0000000d 00000000 0000000d 00008914 7ebf48e0 00009002
5fc0:
0000000d 00000000 00000001 00000036 00000000 000001bc 00093250 7ebf4cf4
5fe0:
0008e5ac 7ebf48dc 00053ef4 4d196fec 600f0010 0000000d 00000000 00000000
[<
80035c28>] (__bug+0x1c/0x28) from [<
802a833c>] (fec_enet_open+0x2c/0x25c)
[<
802a833c>] (fec_enet_open+0x2c/0x25c) from [<
80376224>] (__dev_open+0x7c/0xfc)
[<
80376224>] (__dev_open+0x7c/0xfc) from [<
80376464>] (__dev_change_flags+0x8c/0x110)
[<
80376464>] (__dev_change_flags+0x8c/0x110) from [<
80376554>] (dev_change_flags+0x10/0x44)
[<
80376554>] (dev_change_flags+0x10/0x44) from [<
803b8438>] (devinet_ioctl+0x298/0x694)
[<
803b8438>] (devinet_ioctl+0x298/0x694) from [<
80363be0>] (sock_ioctl+0x20c/0x25c)
[<
80363be0>] (sock_ioctl+0x20c/0x25c) from [<
800d5c78>] (vfs_ioctl+0x2c/0xac)
[<
800d5c78>] (vfs_ioctl+0x2c/0xac) from [<
800d66d8>] (do_vfs_ioctl+0x514/0x56c)
[<
800d66d8>] (do_vfs_ioctl+0x514/0x56c) from [<
800d6760>] (sys_ioctl+0x30/0x58)
[<
800d6760>] (sys_ioctl+0x30/0x58) from [<
80032e80>] (ret_fast_syscall+0x0/0x30)
Code:
e59f0010 e1a01003 eb0fb87b e3a03000 (
e5833000)
---[ end trace
1602d2bf9360375c ]---
Disable CONFIG_FEC_NAPI option so that we can have FEC functional again.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
