* SoC camera crashes when host is not module
@ 2008-06-12 14:09 Paulius Zaleckas
2008-06-12 15:51 ` Guennadi Liakhovetski
0 siblings, 1 reply; 7+ messages in thread
From: Paulius Zaleckas @ 2008-06-12 14:09 UTC (permalink / raw)
To: video4linux-list; +Cc: g.liakhovetski
I am writing driver for i.MX CSI interface... And while I was loading my
driver with insmod everything was OK, but when I compiled it into the
kernel it crashed. I believe that it is a bug in the soc_camera. Seems
like device_register is being used without kref initialization.
[42949374.020000] WARNING: at lib/kref.c:43 kref_get+0x48/0x50()
[42949374.020000] Modules linked in:
[42949374.030000] [<c001c908>] (dump_stack+0x0/0x14) from [<c002d90c>]
(warn_on_slowpath+0x4c/0x68)
[42949374.040000] [<c002d8c0>] (warn_on_slowpath+0x0/0x68) from
[<c00c5134>] (kref_get+0x48/0x50)
[42949374.050000] r6:c01ce6dc r5:c01ce55c r4:c01ce6e0
[42949374.050000] [<c00c50ec>] (kref_get+0x0/0x50) from [<c00c4870>]
(kobject_get+0x18/0x20)
[42949374.060000] r4:c01ce6dc
[42949374.060000] [<c00c4858>] (kobject_get+0x0/0x20) from [<c00c4950>]
(kobject_add_internal+0x64/0x1f8)
[42949374.070000] r4:c01ce55c
[42949374.070000] [<c00c48ec>] (kobject_add_internal+0x0/0x1f8) from
[<c00c4b94>] (kobject_add_varg+0x44/0x54)
[42949374.080000] r8:c01ce4f4 r7:00000000 r6:c01ce6dc r5:c01ce55c
r4:00000000
[42949374.090000] [<c00c4b50>] (kobject_add_varg+0x0/0x54) from
[<c00c4eac>] (kobject_add+0x40/0x68)
[42949374.100000] r6:c01ce580 r5:c01c8aec r4:c01ce4f4
[42949374.110000] [<c00c4e6c>] (kobject_add+0x0/0x68) from [<c00e292c>]
(device_add+0x7c/0x4f4)
[42949374.110000] r3:c01ce580 r2:c019f4dc
[42949374.120000] [<c00e28b0>] (device_add+0x0/0x4f4) from [<c00e2dc0>]
(device_register+0x1c/0x20)
[42949374.130000] [<c00e2da4>] (device_register+0x0/0x20) from
[<c00f74f0>] (soc_camera_host_register+0xc0/0x19c)
[42949374.140000] r4:c01ce4ec
[42949374.140000] [<c00f7430>] (soc_camera_host_register+0x0/0x19c) from
[<c0014054>] (imx_camera_probe+0x260/0x380)
[42949374.150000] r8:00000006 r7:00000000 r6:c01c8778 r5:c01c8aec
r4:c3c96cfc
[42949374.160000] [<c0013df4>] (imx_camera_probe+0x0/0x380) from
[<c00e573c>] (platform_drv_probe+0x20/0x24)
[42949374.170000] [<c00e571c>] (platform_drv_probe+0x0/0x24) from
[<c00e4a2c>] (driver_probe_device+0xb0/0x1b4)
[42949374.180000] [<c00e497c>] (driver_probe_device+0x0/0x1b4) from
[<c00e4b98>] (__driver_attach+0x68/0x6c)
[42949374.190000] r8:c01cdea4 r7:c00e4b30 r6:c01ce4b0 r5:c01c8828
r4:c01c8780
[42949374.200000] [<c00e4b30>] (__driver_attach+0x0/0x6c) from
[<c00e4124>] (bus_for_each_dev+0x5c/0x88)
[42949374.200000] r6:c01ce4b0 r5:c3c0ded0 r4:00000000
[42949374.210000] [<c00e40c8>] (bus_for_each_dev+0x0/0x88) from
[<c00e488c>] (driver_attach+0x20/0x28)
[42949374.220000] r7:c0011874 r6:c01ce4b0 r5:c01ce4b0 r4:c3c96be8
[42949374.230000] [<c00e486c>] (driver_attach+0x0/0x28) from
[<c00e4568>] (bus_add_driver+0xa8/0x1dc)
[42949374.230000] [<c00e44c0>] (bus_add_driver+0x0/0x1dc) from
[<c00e4d34>] (driver_register+0x54/0x130)
[42949374.240000] [<c00e4ce0>] (driver_register+0x0/0x130) from
[<c00e59c4>] (platform_driver_register+0x6c/0x88)
[42949374.250000] r8:c3c0c000 r7:c0011874 r6:00000000 r5:00000000
r4:c0016404
[42949374.260000] [<c00e5958>] (platform_driver_register+0x0/0x88) from
[<c0011888>] (imx_camera_init+0x14/0x1c)
[42949374.270000] [<c0011874>] (imx_camera_init+0x0/0x1c) from
[<c00087ac>] (kernel_init+0x78/0x290)
[42949374.280000] [<c0008734>] (kernel_init+0x0/0x290) from [<c0030dfc>]
(do_exit+0x0/0x614)
[42949374.290000] ---[ end trace 362b35ef15250fa4 ]---
[42949374.290000] kobject: 'camera_host0' (c01ce55c):
kobject_add_internal: parent: '<NULL>', set: 'devices'
[42949374.300000] Unable to handle kernel NULL pointer dereference at
virtual address 00000020
[42949374.310000] pgd = c0004000
[42949374.320000] [00000020] *pgd=00000000
[42949374.320000] Internal error: Oops: 5 [#1]
[42949374.320000] Modules linked in:
[42949374.320000] CPU: 0 Tainted: G W (2.6.26-rc4 #24)
[42949374.320000] PC is at sysfs_addrm_start+0x34/0x9c
[42949374.320000] LR is at sysfs_addrm_start+0x28/0x9c
[42949374.320000] pc : [<c00a4ffc>] lr : [<c00a4ff0>] psr: 60000013
[42949374.320000] sp : c3c0dcd8 ip : c3c0dcd8 fp : c3c0dcec
[42949374.320000] r10: c01c8780 r9 : c01ce55c r8 : c3c0dd24
[42949374.320000] r7 : 00000000 r6 : c01ce55c r5 : c3c0dcf0 r4 :
00000000
[42949374.320000] r3 : 00000000 r2 : c01d4220 r1 : ffffffd0 r0 :
c3c03004
[42949374.320000] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM
Segment kernel
[42949374.320000] Control: 0000317f Table: 08004000 DAC: 00000017
[42949374.320000] Process swapper (pid: 1, stack limit = 0xc3c0c260)
[42949374.320000] Stack: (0xc3c0dcd8 to 0xc3c0e000)
[42949374.320000] dcc0:
c3c0dcf0 c3c96d94
[42949374.320000] dce0: c3c0dd20 c3c0dcf0 c00a5580 c00a4fd8 00000000
00000000 00000000 00000000
[42949374.320000] dd00: c01ce55c c01ce55c c01ce6dc 00000000 c01ce6dc
c3c0dd38 c3c0dd24 c00a561c
[42949374.320000] dd20: c00a5544 c00c49cc c01ce55c c3c0dd64 c3c0dd3c
c00c49e0 c00a55f4 00000000
[42949374.320000] dd40: c3c07394 00000000 c01ce55c c01ce6dc 00000000
c01ce4f4 c3c0dd80 c3c0dd68
[42949374.320000] dd60: c00c4b94 c00c48fc c01ce4f4 c01c8aec c01ce580
c3c0dd94 c3c0dd84 c00c4eac
[42949374.320000] dd80: c00c4b60 c3c0dd9c c3c0ddd0 c3c0dda0 c00e292c
c00c4e80 c019f4dc c01ce580
[42949374.320000] dda0: c01c8780 c3c0ddd0 c01ce4f4 c01c8aec c01c8778
00000000 c01ce4f4 c4850000
[42949374.320000] ddc0: c01c8780 c3c0dde4 c3c0ddd4 c00e2dc0 c00e28c0
c01ce4ec c3c0de08 c3c0dde8
[42949374.320000] dde0: c00f74f0 c00e2db4 c3c96cfc c01c8aec c01c8778
00000000 00000006 c3c0de7c
[42949374.320000] de00: c3c0de0c c0014054 c00f7440 c00c79e4 c3c0de44
c3c96ccc c3c0de40 c3c0de28
[42949374.320000] de20: c3c0de44 00000000 c3c96ccc c3c23418 e000928c
c4850000 c4850008 c00a5fbc
[42949374.320000] de40: c00a5254 c3c23418 00000000 00000000 00000001
c01c8780 c01ce4b0 c01ce4b0
[42949374.320000] de60: c00e4b30 c01d6350 00000000 00000000 c3c0de8c
c3c0de80 c00e573c c0013e04
[42949374.320000] de80: c3c0deb0 c3c0de90 c00e4a2c c00e572c c01c8780
c01c8828 c01ce4b0 c00e4b30
[42949374.320000] dea0: c01cdea4 c3c0decc c3c0deb4 c00e4b98 c00e498c
00000000 c3c0ded0 c01ce4b0
[42949374.320000] dec0: c3c0def8 c3c0ded0 c00e4124 c00e4b40 c3c07818
c3c07818 c01c87c8 c3c96be8
[42949374.320000] dee0: c01ce4b0 c01ce4b0 c0011874 c3c0df08 c3c0defc
c00e488c c00e40d8 c3c0df34
[42949374.320000] df00: c3c0df0c c00e4568 c00e487c c01a179c c0016404
c01ce4b0 00000000 c0011874
[42949374.320000] df20: c3c0c000 c0015168 c3c0df58 c3c0df38 c00e4d34
c00e44d0 c0016404 00000000
[42949374.320000] df40: 00000000 c0011874 c3c0c000 c3c0df68 c3c0df5c
c00e59c4 c00e4cf0 c3c0df78
[42949374.320000] df60: c3c0df6c c0011888 c00e5968 c3c0dff4 c3c0df7c
c00087ac c0011884 bee40f34
[42949374.320000] df80: c3c0dfa4 c3c0c000 00000000 c3c0df00 c3c0df9c
c002af78 c002ac3c 00000000
[42949374.320000] dfa0: 00000000 c3c0dfb0 c0018aa4 c002af68 00000000
00000000 c0008734 c0030dfc
[42949374.320000] dfc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[42949374.320000] dfe0: 00000000 00000000 00000000 c3c0dff8 c0030dfc
c0008744 00000000 02000000
[42949374.320000] Backtrace:
[42949374.320000] [<c00a4fc8>] (sysfs_addrm_start+0x0/0x9c) from
[<c00a5580>] (create_dir+0x4c/0xb0)
[42949374.320000] r5:c3c96d94 r4:c3c0dcf0
[42949374.320000] [<c00a5534>] (create_dir+0x0/0xb0) from [<c00a561c>]
(sysfs_create_dir+0x38/0x4c)
[42949374.320000] r8:c01ce6dc r7:00000000 r6:c01ce6dc r5:c01ce55c
r4:c01ce55c
[42949374.320000] [<c00a55e4>] (sysfs_create_dir+0x0/0x4c) from
[<c00c49e0>] (kobject_add_internal+0xf4/0x1f8)
[42949374.320000] r4:c01ce55c
[42949374.320000] [<c00c48ec>] (kobject_add_internal+0x0/0x1f8) from
[<c00c4b94>] (kobject_add_varg+0x44/0x54)
[42949374.320000] r8:c01ce4f4 r7:00000000 r6:c01ce6dc r5:c01ce55c
r4:00000000
[42949374.320000] [<c00c4b50>] (kobject_add_varg+0x0/0x54) from
[<c00c4eac>] (kobject_add+0x40/0x68)
[42949374.320000] r6:c01ce580 r5:c01c8aec r4:c01ce4f4
[42949374.320000] [<c00c4e6c>] (kobject_add+0x0/0x68) from [<c00e292c>]
(device_add+0x7c/0x4f4)
[42949374.320000] r3:c01ce580 r2:c019f4dc
[42949374.320000] [<c00e28b0>] (device_add+0x0/0x4f4) from [<c00e2dc0>]
(device_register+0x1c/0x20)
[42949374.320000] [<c00e2da4>] (device_register+0x0/0x20) from
[<c00f74f0>] (soc_camera_host_register+0xc0/0x19c)
[42949374.320000] r4:c01ce4ec
[42949374.320000] [<c00f7430>] (soc_camera_host_register+0x0/0x19c) from
[<c0014054>] (imx_camera_probe+0x260/0x380)
[42949374.320000] r8:00000006 r7:00000000 r6:c01c8778 r5:c01c8aec
r4:c3c96cfc
[42949374.320000] [<c0013df4>] (imx_camera_probe+0x0/0x380) from
[<c00e573c>] (platform_drv_probe+0x20/0x24)
[42949374.320000] [<c00e571c>] (platform_drv_probe+0x0/0x24) from
[<c00e4a2c>] (driver_probe_device+0xb0/0x1b4)
[42949374.320000] [<c00e497c>] (driver_probe_device+0x0/0x1b4) from
[<c00e4b98>] (__driver_attach+0x68/0x6c)
[42949374.320000] r8:c01cdea4 r7:c00e4b30 r6:c01ce4b0 r5:c01c8828
r4:c01c8780
[42949374.320000] [<c00e4b30>] (__driver_attach+0x0/0x6c) from
[<c00e4124>] (bus_for_each_dev+0x5c/0x88)
[42949374.320000] r6:c01ce4b0 r5:c3c0ded0 r4:00000000
[42949374.320000] [<c00e40c8>] (bus_for_each_dev+0x0/0x88) from
[<c00e488c>] (driver_attach+0x20/0x28)
[42949374.320000] r7:c0011874 r6:c01ce4b0 r5:c01ce4b0 r4:c3c96be8
[42949374.320000] [<c00e486c>] (driver_attach+0x0/0x28) from
[<c00e4568>] (bus_add_driver+0xa8/0x1dc)
[42949374.320000] [<c00e44c0>] (bus_add_driver+0x0/0x1dc) from
[<c00e4d34>] (driver_register+0x54/0x130)
[42949374.320000] [<c00e4ce0>] (driver_register+0x0/0x130) from
[<c00e59c4>] (platform_driver_register+0x6c/0x88)
[42949374.320000] r8:c3c0c000 r7:c0011874 r6:00000000 r5:00000000
r4:c0016404
[42949374.320000] [<c00e5958>] (platform_driver_register+0x0/0x88) from
[<c0011888>] (imx_camera_init+0x14/0x1c)
[42949374.320000] [<c0011874>] (imx_camera_init+0x0/0x1c) from
[<c00087ac>] (kernel_init+0x78/0x290)
[42949374.320000] [<c0008734>] (kernel_init+0x0/0x290) from [<c0030dfc>]
(do_exit+0x0/0x614)
[42949374.320000] Code: eb030471 e59f2064 e1a03004 e5920000 (e5941020)
--
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: SoC camera crashes when host is not module 2008-06-12 14:09 SoC camera crashes when host is not module Paulius Zaleckas @ 2008-06-12 15:51 ` Guennadi Liakhovetski 2008-06-16 14:55 ` Robert Schwebel 0 siblings, 1 reply; 7+ messages in thread From: Guennadi Liakhovetski @ 2008-06-12 15:51 UTC (permalink / raw) To: Paulius Zaleckas; +Cc: Greg KH, video4linux-list, g.liakhovetski On Thu, 12 Jun 2008, Paulius Zaleckas wrote: > I am writing driver for i.MX CSI interface... And while I was loading my > driver with insmod everything was OK, but when I compiled it into the > kernel it crashed. I believe that it is a bug in the soc_camera. Seems > like device_register is being used without kref initialization. The problem is, I shouldn't put a device on a bus and assign it to a class. I don't understand, why it worked modular, and only crashed compiled in, Greg, I know you can explain this:-) Paulius, please try the patch below. If it works for you, I'll get it upstream for 2.6.26. BTW, I'd love to see at least one of those i.MX CSI drivers I only get to hear about and never to see one... Thanks Guennadi > > [42949374.020000] WARNING: at lib/kref.c:43 kref_get+0x48/0x50() > [42949374.020000] Modules linked in: > [42949374.030000] [<c001c908>] (dump_stack+0x0/0x14) from [<c002d90c>] > (warn_on_slowpath+0x4c/0x68) > [42949374.040000] [<c002d8c0>] (warn_on_slowpath+0x0/0x68) from [<c00c5134>] > (kref_get+0x48/0x50) > [42949374.050000] r6:c01ce6dc r5:c01ce55c r4:c01ce6e0 > [42949374.050000] [<c00c50ec>] (kref_get+0x0/0x50) from [<c00c4870>] > (kobject_get+0x18/0x20) > [42949374.060000] r4:c01ce6dc > [42949374.060000] [<c00c4858>] (kobject_get+0x0/0x20) from [<c00c4950>] > (kobject_add_internal+0x64/0x1f8) > [42949374.070000] r4:c01ce55c > [42949374.070000] [<c00c48ec>] (kobject_add_internal+0x0/0x1f8) from > [<c00c4b94>] (kobject_add_varg+0x44/0x54) > [42949374.080000] r8:c01ce4f4 r7:00000000 r6:c01ce6dc r5:c01ce55c r4:00000000 > [42949374.090000] [<c00c4b50>] (kobject_add_varg+0x0/0x54) from [<c00c4eac>] > (kobject_add+0x40/0x68) > [42949374.100000] r6:c01ce580 r5:c01c8aec r4:c01ce4f4 > [42949374.110000] [<c00c4e6c>] (kobject_add+0x0/0x68) from [<c00e292c>] > (device_add+0x7c/0x4f4) > [42949374.110000] r3:c01ce580 r2:c019f4dc > [42949374.120000] [<c00e28b0>] (device_add+0x0/0x4f4) from [<c00e2dc0>] > (device_register+0x1c/0x20) > [42949374.130000] [<c00e2da4>] (device_register+0x0/0x20) from [<c00f74f0>] > (soc_camera_host_register+0xc0/0x19c) > [42949374.140000] r4:c01ce4ec > [42949374.140000] [<c00f7430>] (soc_camera_host_register+0x0/0x19c) from > [<c0014054>] (imx_camera_probe+0x260/0x380) > [42949374.150000] r8:00000006 r7:00000000 r6:c01c8778 r5:c01c8aec r4:c3c96cfc > [42949374.160000] [<c0013df4>] (imx_camera_probe+0x0/0x380) from [<c00e573c>] > (platform_drv_probe+0x20/0x24) > [42949374.170000] [<c00e571c>] (platform_drv_probe+0x0/0x24) from [<c00e4a2c>] > (driver_probe_device+0xb0/0x1b4) > [42949374.180000] [<c00e497c>] (driver_probe_device+0x0/0x1b4) from > [<c00e4b98>] (__driver_attach+0x68/0x6c) > [42949374.190000] r8:c01cdea4 r7:c00e4b30 r6:c01ce4b0 r5:c01c8828 r4:c01c8780 > [42949374.200000] [<c00e4b30>] (__driver_attach+0x0/0x6c) from [<c00e4124>] > (bus_for_each_dev+0x5c/0x88) > [42949374.200000] r6:c01ce4b0 r5:c3c0ded0 r4:00000000 > [42949374.210000] [<c00e40c8>] (bus_for_each_dev+0x0/0x88) from [<c00e488c>] > (driver_attach+0x20/0x28) > [42949374.220000] r7:c0011874 r6:c01ce4b0 r5:c01ce4b0 r4:c3c96be8 > [42949374.230000] [<c00e486c>] (driver_attach+0x0/0x28) from [<c00e4568>] > (bus_add_driver+0xa8/0x1dc) > [42949374.230000] [<c00e44c0>] (bus_add_driver+0x0/0x1dc) from [<c00e4d34>] > (driver_register+0x54/0x130) > [42949374.240000] [<c00e4ce0>] (driver_register+0x0/0x130) from [<c00e59c4>] > (platform_driver_register+0x6c/0x88) > [42949374.250000] r8:c3c0c000 r7:c0011874 r6:00000000 r5:00000000 r4:c0016404 > [42949374.260000] [<c00e5958>] (platform_driver_register+0x0/0x88) from > [<c0011888>] (imx_camera_init+0x14/0x1c) > [42949374.270000] [<c0011874>] (imx_camera_init+0x0/0x1c) from [<c00087ac>] > (kernel_init+0x78/0x290) > [42949374.280000] [<c0008734>] (kernel_init+0x0/0x290) from [<c0030dfc>] > (do_exit+0x0/0x614) > [42949374.290000] ---[ end trace 362b35ef15250fa4 ]--- > [42949374.290000] kobject: 'camera_host0' (c01ce55c): kobject_add_internal: > parent: '<NULL>', set: 'devices' > [42949374.300000] Unable to handle kernel NULL pointer dereference at virtual > address 00000020 > [42949374.310000] pgd = c0004000 > [42949374.320000] [00000020] *pgd=00000000 > [42949374.320000] Internal error: Oops: 5 [#1] > [42949374.320000] Modules linked in: > [42949374.320000] CPU: 0 Tainted: G W (2.6.26-rc4 #24) > [42949374.320000] PC is at sysfs_addrm_start+0x34/0x9c > [42949374.320000] LR is at sysfs_addrm_start+0x28/0x9c > [42949374.320000] pc : [<c00a4ffc>] lr : [<c00a4ff0>] psr: 60000013 > [42949374.320000] sp : c3c0dcd8 ip : c3c0dcd8 fp : c3c0dcec > [42949374.320000] r10: c01c8780 r9 : c01ce55c r8 : c3c0dd24 > [42949374.320000] r7 : 00000000 r6 : c01ce55c r5 : c3c0dcf0 r4 : 00000000 > [42949374.320000] r3 : 00000000 r2 : c01d4220 r1 : ffffffd0 r0 : c3c03004 > [42949374.320000] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment > kernel > [42949374.320000] Control: 0000317f Table: 08004000 DAC: 00000017 > [42949374.320000] Process swapper (pid: 1, stack limit = 0xc3c0c260) > [42949374.320000] Stack: (0xc3c0dcd8 to 0xc3c0e000) > [42949374.320000] dcc0: c3c0dcf0 c3c96d94 > [42949374.320000] dce0: c3c0dd20 c3c0dcf0 c00a5580 c00a4fd8 00000000 00000000 > 00000000 00000000 > [42949374.320000] dd00: c01ce55c c01ce55c c01ce6dc 00000000 c01ce6dc c3c0dd38 > c3c0dd24 c00a561c > [42949374.320000] dd20: c00a5544 c00c49cc c01ce55c c3c0dd64 c3c0dd3c c00c49e0 > c00a55f4 00000000 > [42949374.320000] dd40: c3c07394 00000000 c01ce55c c01ce6dc 00000000 c01ce4f4 > c3c0dd80 c3c0dd68 > [42949374.320000] dd60: c00c4b94 c00c48fc c01ce4f4 c01c8aec c01ce580 c3c0dd94 > c3c0dd84 c00c4eac > [42949374.320000] dd80: c00c4b60 c3c0dd9c c3c0ddd0 c3c0dda0 c00e292c c00c4e80 > c019f4dc c01ce580 > [42949374.320000] dda0: c01c8780 c3c0ddd0 c01ce4f4 c01c8aec c01c8778 00000000 > c01ce4f4 c4850000 > [42949374.320000] ddc0: c01c8780 c3c0dde4 c3c0ddd4 c00e2dc0 c00e28c0 c01ce4ec > c3c0de08 c3c0dde8 > [42949374.320000] dde0: c00f74f0 c00e2db4 c3c96cfc c01c8aec c01c8778 00000000 > 00000006 c3c0de7c > [42949374.320000] de00: c3c0de0c c0014054 c00f7440 c00c79e4 c3c0de44 c3c96ccc > c3c0de40 c3c0de28 > [42949374.320000] de20: c3c0de44 00000000 c3c96ccc c3c23418 e000928c c4850000 > c4850008 c00a5fbc > [42949374.320000] de40: c00a5254 c3c23418 00000000 00000000 00000001 c01c8780 > c01ce4b0 c01ce4b0 > [42949374.320000] de60: c00e4b30 c01d6350 00000000 00000000 c3c0de8c c3c0de80 > c00e573c c0013e04 > [42949374.320000] de80: c3c0deb0 c3c0de90 c00e4a2c c00e572c c01c8780 c01c8828 > c01ce4b0 c00e4b30 > [42949374.320000] dea0: c01cdea4 c3c0decc c3c0deb4 c00e4b98 c00e498c 00000000 > c3c0ded0 c01ce4b0 > [42949374.320000] dec0: c3c0def8 c3c0ded0 c00e4124 c00e4b40 c3c07818 c3c07818 > c01c87c8 c3c96be8 > [42949374.320000] dee0: c01ce4b0 c01ce4b0 c0011874 c3c0df08 c3c0defc c00e488c > c00e40d8 c3c0df34 > [42949374.320000] df00: c3c0df0c c00e4568 c00e487c c01a179c c0016404 c01ce4b0 > 00000000 c0011874 > [42949374.320000] df20: c3c0c000 c0015168 c3c0df58 c3c0df38 c00e4d34 c00e44d0 > c0016404 00000000 > [42949374.320000] df40: 00000000 c0011874 c3c0c000 c3c0df68 c3c0df5c c00e59c4 > c00e4cf0 c3c0df78 > [42949374.320000] df60: c3c0df6c c0011888 c00e5968 c3c0dff4 c3c0df7c c00087ac > c0011884 bee40f34 > [42949374.320000] df80: c3c0dfa4 c3c0c000 00000000 c3c0df00 c3c0df9c c002af78 > c002ac3c 00000000 > [42949374.320000] dfa0: 00000000 c3c0dfb0 c0018aa4 c002af68 00000000 00000000 > c0008734 c0030dfc > [42949374.320000] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 > [42949374.320000] dfe0: 00000000 00000000 00000000 c3c0dff8 c0030dfc c0008744 > 00000000 02000000 > [42949374.320000] Backtrace: > [42949374.320000] [<c00a4fc8>] (sysfs_addrm_start+0x0/0x9c) from [<c00a5580>] > (create_dir+0x4c/0xb0) > [42949374.320000] r5:c3c96d94 r4:c3c0dcf0 > [42949374.320000] [<c00a5534>] (create_dir+0x0/0xb0) from [<c00a561c>] > (sysfs_create_dir+0x38/0x4c) > [42949374.320000] r8:c01ce6dc r7:00000000 r6:c01ce6dc r5:c01ce55c r4:c01ce55c > [42949374.320000] [<c00a55e4>] (sysfs_create_dir+0x0/0x4c) from [<c00c49e0>] > (kobject_add_internal+0xf4/0x1f8) > [42949374.320000] r4:c01ce55c > [42949374.320000] [<c00c48ec>] (kobject_add_internal+0x0/0x1f8) from > [<c00c4b94>] (kobject_add_varg+0x44/0x54) > [42949374.320000] r8:c01ce4f4 r7:00000000 r6:c01ce6dc r5:c01ce55c r4:00000000 > [42949374.320000] [<c00c4b50>] (kobject_add_varg+0x0/0x54) from [<c00c4eac>] > (kobject_add+0x40/0x68) > [42949374.320000] r6:c01ce580 r5:c01c8aec r4:c01ce4f4 > [42949374.320000] [<c00c4e6c>] (kobject_add+0x0/0x68) from [<c00e292c>] > (device_add+0x7c/0x4f4) > [42949374.320000] r3:c01ce580 r2:c019f4dc > [42949374.320000] [<c00e28b0>] (device_add+0x0/0x4f4) from [<c00e2dc0>] > (device_register+0x1c/0x20) > [42949374.320000] [<c00e2da4>] (device_register+0x0/0x20) from [<c00f74f0>] > (soc_camera_host_register+0xc0/0x19c) > [42949374.320000] r4:c01ce4ec > [42949374.320000] [<c00f7430>] (soc_camera_host_register+0x0/0x19c) from > [<c0014054>] (imx_camera_probe+0x260/0x380) > [42949374.320000] r8:00000006 r7:00000000 r6:c01c8778 r5:c01c8aec r4:c3c96cfc > [42949374.320000] [<c0013df4>] (imx_camera_probe+0x0/0x380) from [<c00e573c>] > (platform_drv_probe+0x20/0x24) > [42949374.320000] [<c00e571c>] (platform_drv_probe+0x0/0x24) from [<c00e4a2c>] > (driver_probe_device+0xb0/0x1b4) > [42949374.320000] [<c00e497c>] (driver_probe_device+0x0/0x1b4) from > [<c00e4b98>] (__driver_attach+0x68/0x6c) > [42949374.320000] r8:c01cdea4 r7:c00e4b30 r6:c01ce4b0 r5:c01c8828 r4:c01c8780 > [42949374.320000] [<c00e4b30>] (__driver_attach+0x0/0x6c) from [<c00e4124>] > (bus_for_each_dev+0x5c/0x88) > [42949374.320000] r6:c01ce4b0 r5:c3c0ded0 r4:00000000 > [42949374.320000] [<c00e40c8>] (bus_for_each_dev+0x0/0x88) from [<c00e488c>] > (driver_attach+0x20/0x28) > [42949374.320000] r7:c0011874 r6:c01ce4b0 r5:c01ce4b0 r4:c3c96be8 > [42949374.320000] [<c00e486c>] (driver_attach+0x0/0x28) from [<c00e4568>] > (bus_add_driver+0xa8/0x1dc) > [42949374.320000] [<c00e44c0>] (bus_add_driver+0x0/0x1dc) from [<c00e4d34>] > (driver_register+0x54/0x130) > [42949374.320000] [<c00e4ce0>] (driver_register+0x0/0x130) from [<c00e59c4>] > (platform_driver_register+0x6c/0x88) > [42949374.320000] r8:c3c0c000 r7:c0011874 r6:00000000 r5:00000000 r4:c0016404 > [42949374.320000] [<c00e5958>] (platform_driver_register+0x0/0x88) from > [<c0011888>] (imx_camera_init+0x14/0x1c) > [42949374.320000] [<c0011874>] (imx_camera_init+0x0/0x1c) from [<c00087ac>] > (kernel_init+0x78/0x290) > [42949374.320000] [<c0008734>] (kernel_init+0x0/0x290) from [<c0030dfc>] > (do_exit+0x0/0x614) > [42949374.320000] Code: eb030471 e59f2064 e1a03004 e5920000 (e5941020) > --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c index a1b9244..d015bfe 100644 --- a/drivers/media/video/soc_camera.c +++ b/drivers/media/video/soc_camera.c @@ -763,15 +763,6 @@ static struct device_driver ic_drv = { .owner = THIS_MODULE, }; -/* - * Image capture host - this is a host device, not a bus device, so, - * no bus reference, no probing. - */ -static struct class soc_camera_host_class = { - .owner = THIS_MODULE, - .name = "camera_host", -}; - static void dummy_release(struct device *dev) { } @@ -801,7 +792,6 @@ int soc_camera_host_register(struct soc_camera_host *ici) /* Number might be equal to the platform device ID */ sprintf(ici->dev.bus_id, "camera_host%d", ici->nr); - ici->dev.class = &soc_camera_host_class; mutex_lock(&list_lock); list_for_each_entry(ix, &hosts, list) { @@ -1003,14 +993,9 @@ static int __init soc_camera_init(void) ret = driver_register(&ic_drv); if (ret) goto edrvr; - ret = class_register(&soc_camera_host_class); - if (ret) - goto eclr; return 0; -eclr: - driver_unregister(&ic_drv); edrvr: bus_unregister(&soc_camera_bus_type); return ret; @@ -1018,7 +1003,6 @@ edrvr: static void __exit soc_camera_exit(void) { - class_unregister(&soc_camera_host_class); driver_unregister(&ic_drv); bus_unregister(&soc_camera_bus_type); } -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: SoC camera crashes when host is not module 2008-06-12 15:51 ` Guennadi Liakhovetski @ 2008-06-16 14:55 ` Robert Schwebel [not found] ` <485681DE.4010701@teltonika.lt> 0 siblings, 1 reply; 7+ messages in thread From: Robert Schwebel @ 2008-06-16 14:55 UTC (permalink / raw) To: Guennadi Liakhovetski; +Cc: Greg KH, video4linux-list, Paulius Zaleckas On Thu, Jun 12, 2008 at 05:51:42PM +0200, Guennadi Liakhovetski wrote: > BTW, I'd love to see at least one of those i.MX CSI drivers I only get to > hear about and never to see one... We have them in the internal linux-latest series; however, it is based on the entire i.MX support, and as long as we don't get this forward through alkml, it will be stuck ... However, next series was posted today, so let's hope for some progress. rsc -- Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de Pengutronix - Linux Solutions for Science and Industry Handelsregister: Amtsgericht Hildesheim, HRA 2686 Hannoversche Str. 2, 31134 Hildesheim, Germany Phone: +49-5121-206917-0 | Fax: +49-5121-206917-9 -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 7+ messages in thread
[parent not found: <485681DE.4010701@teltonika.lt>]
* Re: SoC camera crashes when host is not module [not found] ` <485681DE.4010701@teltonika.lt> @ 2008-06-16 15:19 ` Robert Schwebel 2008-06-16 15:25 ` Guennadi Liakhovetski [not found] ` <48568C5E.6050800@teltonika.lt> 0 siblings, 2 replies; 7+ messages in thread From: Robert Schwebel @ 2008-06-16 15:19 UTC (permalink / raw) To: Paulius Zaleckas; +Cc: Greg KH, Guennadi Liakhovetski, video4linux-list On Mon, Jun 16, 2008 at 06:08:14PM +0300, Paulius Zaleckas wrote: > Robert Schwebel wrote: >> On Thu, Jun 12, 2008 at 05:51:42PM +0200, Guennadi Liakhovetski wrote: >>> BTW, I'd love to see at least one of those i.MX CSI drivers I only >>> get to hear about and never to see one... >> >> We have them in the internal linux-latest series; however, it is based >> on the entire i.MX support, and as long as we don't get this forward >> through alkml, it will be stuck ... > > I have written driver for i.MX1/L... Its not finished yet, but generally > working :) Should we cooperate here? Our driver is for the i.MX27, so probably a different beast, right? However, if you send me the patches, we can integrate it into our next i.MX series. rsc -- Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de Pengutronix - Linux Solutions for Science and Industry Handelsregister: Amtsgericht Hildesheim, HRA 2686 Hannoversche Str. 2, 31134 Hildesheim, Germany Phone: +49-5121-206917-0 | Fax: +49-5121-206917-9 -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: SoC camera crashes when host is not module 2008-06-16 15:19 ` Robert Schwebel @ 2008-06-16 15:25 ` Guennadi Liakhovetski 2008-06-16 15:36 ` Robert Schwebel [not found] ` <48568C5E.6050800@teltonika.lt> 1 sibling, 1 reply; 7+ messages in thread From: Guennadi Liakhovetski @ 2008-06-16 15:25 UTC (permalink / raw) To: Robert Schwebel; +Cc: Greg KH, video4linux-list, Paulius Zaleckas On Mon, 16 Jun 2008, Robert Schwebel wrote: > On Mon, Jun 16, 2008 at 06:08:14PM +0300, Paulius Zaleckas wrote: > > Robert Schwebel wrote: > >> On Thu, Jun 12, 2008 at 05:51:42PM +0200, Guennadi Liakhovetski wrote: > >>> BTW, I'd love to see at least one of those i.MX CSI drivers I only > >>> get to hear about and never to see one... > >> > >> We have them in the internal linux-latest series; however, it is based > >> on the entire i.MX support, and as long as we don't get this forward > >> through alkml, it will be stuck ... > > > > I have written driver for i.MX1/L... Its not finished yet, but generally > > working :) Should we cooperate here? > > Our driver is for the i.MX27, so probably a different beast, right? > > However, if you send me the patches, we can integrate it into our next > i.MX series. Please, don't forget, that camera drivers should also be reviewed and acked on the v4l list. Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: SoC camera crashes when host is not module 2008-06-16 15:25 ` Guennadi Liakhovetski @ 2008-06-16 15:36 ` Robert Schwebel 0 siblings, 0 replies; 7+ messages in thread From: Robert Schwebel @ 2008-06-16 15:36 UTC (permalink / raw) To: Guennadi Liakhovetski; +Cc: Greg KH, video4linux-list, Paulius Zaleckas On Mon, Jun 16, 2008 at 05:25:11PM +0200, Guennadi Liakhovetski wrote: > Please, don't forget, that camera drivers should also be reviewed and > acked on the v4l list. Sure. It's just to make sure that it does still apply ontop of the imx rework. The non-arm stuff has to go through the responsible maintainers anyway. So if it's MX1/MXL, it should not be related to i.MX27, so the v4l list would be a better choice. rsc -- Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de Pengutronix - Linux Solutions for Science and Industry Handelsregister: Amtsgericht Hildesheim, HRA 2686 Hannoversche Str. 2, 31134 Hildesheim, Germany Phone: +49-5121-206917-0 | Fax: +49-5121-206917-9 -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 7+ messages in thread
[parent not found: <48568C5E.6050800@teltonika.lt>]
* Re: SoC camera crashes when host is not module [not found] ` <48568C5E.6050800@teltonika.lt> @ 2008-06-16 16:09 ` Robert Schwebel 0 siblings, 0 replies; 7+ messages in thread From: Robert Schwebel @ 2008-06-16 16:09 UTC (permalink / raw) To: Paulius Zaleckas Cc: Greg KH, video4linux-list, Guennadi Liakhovetski, Sascha Hauer On Mon, Jun 16, 2008 at 06:53:02PM +0300, Paulius Zaleckas wrote: > I have just checked "Reference Manual" and apart from couple missing > modes and interrupts in MXL it looks extremely similar. > > Don't you have a problem that SOF interrupt is triggered too late? I've set Sascha Hauer on Cc: who has written the driver. If the hardware is so similar, we should merge the both drivers. rsc -- Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de Pengutronix - Linux Solutions for Science and Industry Handelsregister: Amtsgericht Hildesheim, HRA 2686 Hannoversche Str. 2, 31134 Hildesheim, Germany Phone: +49-5121-206917-0 | Fax: +49-5121-206917-9 -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2008-06-16 16:10 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-06-12 14:09 SoC camera crashes when host is not module Paulius Zaleckas
2008-06-12 15:51 ` Guennadi Liakhovetski
2008-06-16 14:55 ` Robert Schwebel
[not found] ` <485681DE.4010701@teltonika.lt>
2008-06-16 15:19 ` Robert Schwebel
2008-06-16 15:25 ` Guennadi Liakhovetski
2008-06-16 15:36 ` Robert Schwebel
[not found] ` <48568C5E.6050800@teltonika.lt>
2008-06-16 16:09 ` Robert Schwebel
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