Hi all,
Now I have started a project of display the image from the USB camera
on BB Black, here is my hardware list:
1. BB Black board
2.HDMI to VGA converter
3.USB camera
But when I run my display programme, it will print following error
message after several hours or several minutes:
[ 4335.085984] Unable to handle kernel NULL pointer dereference at virtual
address 00000011
[ 4335.094426] pgd = c0004000
[ 4335.097247] [00000011] *pgd=00000000
[ 4335.100988] Internal error: Oops: 17 [#1] SMP THUMB2
[ 4335.106168] Modules linked in: uvcvideo videobuf2_vmalloc ip_tables
x_tables g_multi libcomposite rfcomm mtnet7601Usta(O) mt7601Usta(PO)
mtutil7601Usta(O) ircomm_tty ircomm irda ipv6 hidp bluetooth rfkill autofs4
[ 4335.125947] CPU: 0 Tainted: P O (3.8.13 #1)
[ 4335.131582] PC is at rxstate+0x6/0xa0
[ 4335.135399] LR is at musb_interrupt+0x4e1/0x546
[ 4335.140123] pc : [<c025e35c>] lr : [<c025d37b>] psr: 000001b3
[ 4335.140123] sp : c064fe78 ip : 00000000 fp : 20000000
[ 4335.152094] r10: 00000000 r9 : 00000000 r8 : 0000000d
[ 4335.157542] r7 : 00000098 r6 : 000000d4 r5 : 00000001 r4 : df3440f0
[ 4335.164350] r3 : e087edd0 r2 : 00000000 r1 : ffffffcc r0 : df3440f0
[ 4335.171145] Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA Thumb
Segment kernel
[ 4335.179035] Control: 50c5387d Table: 9ceec019 DAC: 00000015
[ 4335.185021] Process swapper/0 (pid: 0, stack limit = 0xc064e240)
[ 4335.191280] Stack: (0xc064fe78 to 0xc0650000)
[ 4335.195919] fe60:
e087edd0 df3440f0
[ 4335.204455] fe80: 00000001 00000001 00000098 0000000d 00000000 c025d37b
df3440f0 00000000
[ 4335.213037] fea0: df3440f0 df16eac0 00000004 00000000 e087e800 df171ec0
df16c210 c0260d17
[ 4335.221575] fec0: 00000023 60000193 46114610 df31bb80 df006c00 00000023
00000000 00000000
[ 4335.230144] fee0: 413fc082 c06c3b2c 00000000 c0062019 df006c00 df31bb80
df006c00 df006c50
[ 4335.238670] ff00: df31bb80 c064ff68 00000023 413fc082 00000000 c0062115
df006c00 df006c50
[ 4335.247237] ff20: fa2000d8 c0063b4b c0063ad5 00000023 00000000 c0061c9f
00000023 c000cef7
[ 4335.255781] ff40: c06c48fc fa200098 fa2000b8 c0008565 c000d048 60000033
ffffffff c064ff9c
[ 4335.264366] ff60: 80004059 c000c1db ffffffed 00000000 004e4000 00000000
c064e000 c038d1e8
[ 4335.272896] ff80: c06c3cc8 c0b2b200 80004059 413fc082 00000000 00000000
00000000 c064ffb0
[ 4335.281473] ffa0: c000d047 c000d048 60000033 ffffffff c000d037 c000d15b
c06573c8 ffffffff
[ 4335.290002] ffc0: c062b230 c060a583 ffffffff ffffffff c060a217 00000000
00000000 c062b230
[ 4335.298565] ffe0: 00000000 50c5387d c06564f0 c062b22c c065acec 8000807f
00000000 00000000
[ 4335.307100] [<c025e35c>] (rxstate+0x6/0xa0) from [<c025d37b>]
(musb_interrupt+0x4e1/0x546)
[ 4335.315743] [<c025d37b>] (musb_interrupt+0x4e1/0x546) from [<c0260d17>]
(dsps_interrupt+0x163/0x1c0)
[ 4335.325289] [<c0260d17>] (dsps_interrupt+0x163/0x1c0) from [<c0062019>]
(handle_irq_event_percpu+0x1d/0xf0)
[ 4335.335456] [<c0062019>] (handle_irq_event_percpu+0x1d/0xf0) from
[<c0062115>] (handle_irq_event+0x29/0x3c)
[ 4335.345619] [<c0062115>] (handle_irq_event+0x29/0x3c) from [<c0063b4b>]
(handle_level_irq+0x77/0x8c)
[ 4335.355152] [<c0063b4b>] (handle_level_irq+0x77/0x8c) from [<c0061c9f>]
(generic_handle_irq+0x13/0x1c)
[ 4335.364873] [<c0061c9f>] (generic_handle_irq+0x13/0x1c) from
[<c000cef7>] (handle_IRQ+0x3b/0x5c)
[ 4335.374040] [<c000cef7>] (handle_IRQ+0x3b/0x5c) from [<c0008565>]
(omap3_intc_handle_irq+0x39/0x5c)
[ 4335.383484] [<c0008565>] (omap3_intc_handle_irq+0x39/0x5c) from
[<c000c1db>] (__irq_svc+0x3b/0x5c)
[ 4335.392824] Exception stack(0xc064ff68 to 0xc064ffb0)
[ 4335.398131] ff60: ffffffed 00000000 004e4000 00000000
c064e000 c038d1e8
[ 4335.406655] ff80: c06c3cc8 c0b2b200 80004059 413fc082 00000000 00000000
00000000 c064ffb0
[ 4335.415223] ffa0: c000d047 c000d048 60000033 ffffffff
[ 4335.420500] [<c000c1db>] (__irq_svc+0x3b/0x5c) from [<c000d048>]
(default_idle+0x12/0x1a)
[ 4335.429098] [<c000d048>] (default_idle+0x12/0x1a) from [<c000d15b>]
(cpu_idle+0x63/0xa0)
[ 4335.437579] [<c000d15b>] (cpu_idle+0x63/0xa0) from [<c060a583>]
(start_kernel+0x1ff/0x254)
[ 4335.449016] Code: 81f0 e92d 43f8 26d4 (f891) 3045
[ 4335.454081] ---[ end trace d2951e105b8a820e ]---
[ 4335.458898] Kernel panic - not syncing: Fatal exception in interrupt
[ 4335.465522] drm_kms_helper: panic occurred, switching back to text
console
[ 4335.472691] [drm:drm_crtc_helper_set_config],
[ 4335.477324] [drm:drm_crtc_helper_set_config], [CRTC:3] [FB:8]
#connectors=1 (x y) (0 0)
[ 4335.485698] [drm:drm_crtc_helper_set_config], [CONNECTOR:5:HDMI-A-1] to
[CRTC:3]
Also,when I start the BB Black , it print:
The Angstrom Distribution beaglebone ttyO0
Angstrom v2012.12 - Kernel 3.8.13
[ 9.573610] systemd-udevd[86]: worker [154] failed while handling
'/devices/ocp.2/47400000.usb/musb-hdrc.0.auto/gadget/net/usb0'
beaglebone login: [ 9.776906] systemd-journald[245]: Failed to write
entry, ignoring: Cannot assign requested address
[ 9.892100] systemd-journald[245]: Failed to write entry, ignoring:
Cannot assign requested address
[ 9.994323] systemd-journald[245]: Failed to write entry, ignoring: Bad
address
[ 10.079438] systemd-journald[245]: Failed to write entry, ignoring: Bad
address
[ 10.724777] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 10.898110] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 11.085955] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 11.212594] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 11.303930] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 12.150345] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 12.223367] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 12.305631] systemd-journald[245]: Failed to write entry, ignoring: Bad
address
[ 12.388193] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 12.477840] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 12.600794] systemd-journald[245]: Failed to write entry, ignoring: Bad
address
[ 12.737718] systemd-journald[245]: Failed to write entry, ignoring: Bad
address
[ 12.808943] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 12.832386] libphy: PHY 4a101000.mdio:01 not found
[ 12.837445] net eth0: phy 4a101000.mdio:01 not found on slave 1
[ 12.913550] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 12.992818] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 13.069197] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 13.142526] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 13.217604] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 13.292594] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 13.366356] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 13.444017] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 13.552067] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 13.624756] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 13.710322] systemd-journald[245]: Failed to write entry, ignoring: Bad
address
[ 13.789335] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 14.011893] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 14.091442] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 14.167028] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 14.245261] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 14.324903] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 14.422427] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 14.501942] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too long
[ 14.589220] systemd-journald[245]: Failed to write entry, ignoring:
Argument list too lon
What should I do?
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