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BB Black, Unable to handle kernel NULL pointer dereference at virtual address

chancen guo
Intellectual 330 points


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:

Unable to handle kernel NULL pointer dereference at virtual address

   What should I do?

  • 0
    TI__Guru**** 393215 points

    Which Linux version are you using?

  • 0 in reply to Biser Gatchev-XID
    Intellectual 330 points

    Hi Biser,

         Sorry to trouble you again! My Linux version is :Angstrom v2012.12 - Kernel 3.8.13

        And now another new problem,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

     

    The detail error message after the board halt is  as following:

    [ 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]

  • 0 in reply to chancen guo
    TI__Guru**** 393215 points

    chancen guo said:
    My Linux version is :Angstrom v2012.12 - Kernel 3.8.13

    This forum only supports the TI distributed Linux EZSDK. For the Angstrom build please turn to the community at http://beagleboard.org/Community/Forums