Public bug reported:
kernel BUG at /build/buildd/linux-ti-omap4-2.6.34/drivers/video/omap2/dss/dispc.c:1657!
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = dcb28000
[00000000] *pgd=9cbcf031, *pte=00000000, *ppte=00000000
Internal error: Oops: 817 [#1] PREEMPT SMP
last sysfs file: /sys/kernel/uevent_seqnum
Modules linked in:
CPU: 0 Tainted: G B (2.6.34-902-omap4 #6-Ubuntu)
PC is at __bug+0x1c/0x28
LR is at __bug+0x18/0x28
pc : [<c0040408>] lr : [<c0040404>] psr: 20000113
sp : dcbffde8 ip : df894220 fp : 00000000
r10: 00000000 r9 : 00000000 r8 : 00000000
r7 : 00000085 r6 : dcbffe08 r5 : 00000000 r4 : c06bd028
r3 : 00000000 r2 : dcbffddc r1 : c05d65dc r0 : 0000005e
Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: 10c53c7d Table: 9cb2804a DAC: 00000015
Process init (pid: 159, stack limit = 0xdcbfe2f0)
Stack: (0xdcbffde8 to 0xdcc00000)
fde0: df0a8000 c02b0098 c06bd028 c02bf890 00002030 00003720
fe00: 00002020 00000a30 00000000 ffffffff 00000000 c04db9e4 31f8000f 0020cccc
fe20: 0001d2f2 0001007b c06bd028 00000001 c06a63bc c02bfe04 00000085 00000002
fe40: 00000000 da425740 dcbfe000 c00ab6c0 c06a6380 00000085 c06a63bc da425740
fe60: 00000000 dcbfe000 beb4c274 c00ad834 00000085 00000000 c003a984 dcbffea0
fe80: 00000000 c003c07c 60000113 ffffffff fa240100 00000085 00000001 c04de988
fea0: beb4c274 00000000 00000000 00000000 dcbfffb0 0000081f dcb31ba0 dcb3b9c0
fec0: dcb31bd4 400180f0 beb4c274 00000000 00000000 dcbffee8 c003c378 c04e0990
fee0: 60000113 ffffffff beb4c274 0000081f 0000081f c06b1444 beb4c274 dcbfffb0
ff00: 00000000 400180f0 40104000 c003c378 c06b0218 c04e0d5c 00000000 00000002
ff20: c06a0000 c04dee14 22af3d82 dcb38288 00000000 dcbfe000 00000011 c0075960
ff40: 22c166ab ffffffff dcbfff8c 00000000 00000000 c04de92c 40018158 c06bfbf0
ff60: 0000009f dcb3b9c0 dcbfe000 dcb38420 00000000 00000000 00000000 00000000
ff80: 00000000 dcbfffac d964e044 dcbfffa0 c006cb2c c028309c 40000013 ffffffff
ffa0: beb4c290 00000001 beb4c2a0 c04dede0 00001210 4001e050 4006f350 00094cb0
ffc0: 40018158 beb4c290 00000001 beb4c2a0 00000000 400180f0 40104000 00000000
ffe0: 00000078 beb4c290 4008e1d9 4006f34e 00000030 ffffffff 00000fff 00001000
[<c0040408>] (__bug+0x1c/0x28) from [<c02b0098>] (dispc_set_digit_size+0x1c/0x68)
[<c02b0098>] (dispc_set_digit_size+0x1c/0x68) from [<c02bf890>] (hdmi_power_on+0x150/0x188)
[<c02bf890>] (hdmi_power_on+0x150/0x188) from [<c02bfe04>] (hdmi_irq_handler+0x90/0x12c)
[<c02bfe04>] (hdmi_irq_handler+0x90/0x12c) from [<c00ab6c0>] (handle_IRQ_event+0xa0/0x190)
[<c00ab6c0>] (handle_IRQ_event+0xa0/0x190) from [<c00ad834>] (handle_level_irq+0xb0/0x12c)
[<c00ad834>] (handle_level_irq+0xb0/0x12c) from [<c003c07c>] (asm_do_IRQ+0x7c/0xac)
[<c003c07c>] (asm_do_IRQ+0x7c/0xac) from [<c04de988>] (__irq_svc+0x48/0xbc)
Exception stack(0xdcbffea0 to 0xdcbffee8)
fea0: beb4c274 00000000 00000000 00000000 dcbfffb0 0000081f dcb31ba0 dcb3b9c0
fec0: dcb31bd4 400180f0 beb4c274 00000000 00000000 dcbffee8 c003c378 c04e0990
fee0: 60000113 ffffffff
[<c04de988>] (__irq_svc+0x48/0xbc) from [<c04e0990>] (do_page_fault+0xd0/0x1c4)
[<c04e0990>] (do_page_fault+0xd0/0x1c4) from [<c003c378>] (do_DataAbort+0x34/0x98)
[<c003c378>] (do_DataAbort+0x34/0x98) from [<c04dede0>] (ret_from_exception+0x0/0x10)
Exception stack(0xdcbfffb0 to 0xdcbffff8)
ffa0: 00001210 4001e050 4006f350 00094cb0
ffc0: 40018158 beb4c290 00000001 beb4c2a0 00000000 400180f0 40104000 00000000
ffe0: 00000078 beb4c290 4008e1d9 4006f34e 00000030 ffffffff
Code: e59f0010 e1a01003 eb126d71 e3a03000 (e5833000)
---[ end trace 7fb6b32c16c3d45e ]---
Kernel panic - not syncing: Fatal exception in interrupt
[<c0043684>] (unwind_backtrace+0x0/0xe4) from [<c04db944>] (panic+0x44/0xcc)
[<c04db944>] (panic+0x44/0xcc) from [<c0040a7c>] (die+0xd4/0xfc)
[<c0040a7c>] (die+0xd4/0xfc) from [<c00446e8>] (__do_kernel_fault+0x64/0x84)
[<c00446e8>] (__do_kernel_fault+0x64/0x84) from [<c04e0a68>] (do_page_fault+0x1a8/0x1c4)
[<c04e0a68>] (do_page_fault+0x1a8/0x1c4) from [<c003c378>] (do_DataAbort+0x34/0x98)
[<c003c378>] (do_DataAbort+0x34/0x98) from [<c04de92c>] (__dabt_svc+0x4c/0x60)
Exception stack(0xdcbffda0 to 0xdcbffde8)
fda0: 0000005e c05d65dc dcbffddc 00000000 c06bd028 00000000 dcbffe08 00000085
fdc0: 00000000 00000000 00000000 00000000 df894220 dcbffde8 c0040404 c0040408
fde0: 20000113 ffffffff
[<c04de92c>] (__dabt_svc+0x4c/0x60) from [<c0040408>] (__bug+0x1c/0x28)
[<c0040408>] (__bug+0x1c/0x28) from [<c02b0098>] (dispc_set_digit_size+0x1c/0x68)
[<c02b0098>] (dispc_set_digit_size+0x1c/0x68) from [<c02bf890>] (hdmi_power_on+0x150/0x188)
[<c02bf890>] (hdmi_power_on+0x150/0x188) from [<c02bfe04>] (hdmi_irq_handler+0x90/0x12c)
[<c02bfe04>] (hdmi_irq_handler+0x90/0x12c) from [<c00ab6c0>] (handle_IRQ_event+0xa0/0x190)
[<c00ab6c0>] (handle_IRQ_event+0xa0/0x190) from [<c00ad834>] (handle_level_irq+0xb0/0x12c)
[<c00ad834>] (handle_level_irq+0xb0/0x12c) from [<c003c07c>] (asm_do_IRQ+0x7c/0xac)
[<c003c07c>] (asm_do_IRQ+0x7c/0xac) from [<c04de988>] (__irq_svc+0x48/0xbc)
Exception stack(0xdcbffea0 to 0xdcbffee8)
fea0: beb4c274 00000000 00000000 00000000 dcbfffb0 0000081f dcb31ba0 dcb3b9c0
fec0: dcb31bd4 400180f0 beb4c274 00000000 00000000 dcbffee8 c003c378 c04e0990
fee0: 60000113 ffffffff
[<c04de988>] (__irq_svc+0x48/0xbc) from [<c04e0990>] (do_page_fault+0xd0/0x1c4)
[<c04e0990>] (do_page_fault+0xd0/0x1c4) from [<c003c378>] (do_DataAbort+0x34/0x98)
[<c003c378>] (do_DataAbort+0x34/0x98) from [<c04dede0>] (ret_from_exception+0x0/0x10)
Exception stack(0xdcbfffb0 to 0xdcbffff8)
ffa0: 00001210 4001e050 4006f350 00094cb0
ffc0: 40018158 beb4c290 00000001 beb4c2a0 00000000 400180f0 40104000 00000000
ffe0: 00000078 beb4c290 4008e1d9 4006f34e 00000030 ffffffff
CPU1: stopping
[<c0043684>] (unwind_backtrace+0x0/0xe4) from [<c004204c>] (ipi_cpu_stop+0x20/0x48)
[<c004204c>] (ipi_cpu_stop+0x20/0x48) from [<c003c268>] (do_IPI+0xc0/0x104)
[<c003c268>] (do_IPI+0xc0/0x104) from [<c04de988>] (__irq_svc+0x48/0xbc)
Exception stack(0xdc857fa0 to 0xdc857fe8)
7fa0: 00000001 dcb39ce0 dc857fe8 00000000 dc856000 00000015 10c03c7d c070ef28
7fc0: 00000000 410fc091 00000000 00000000 dcb36044 dc857fe8 c003dc78 c003dc7c
7fe0: 60000013 ffffffff
[<c04de988>] (__irq_svc+0x48/0xbc) from [<c003dc7c>] (default_idle+0x24/0x28)
[<c003dc7c>] (default_idle+0x24/0x28) from [<c003e168>] (cpu_idle+0x74/0xc4)
[<c003e168>] (cpu_idle+0x74/0xc4) from [<80008080>] (0x80008080)
** Affects: linux-ti-omap4 (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
- kernel BUG at /build/buildd/linux-ti-
- omap4-2.6.34/drivers/video/omap2/dss/dispc.c:1657
+ kernel BUG at /build/buildd/linux-ti-omap4-2.6.34/drivers/video/omap2/dss/dispc.c:1657!
+ Unable to handle kernel NULL pointer dereference at virtual address 00000000
+ pgd = dcb28000
+ [00000000] *pgd=9cbcf031, *pte=00000000, *ppte=00000000
+ Internal error: Oops: 817 [#1] PREEMPT SMP
+ last sysfs file: /sys/kernel/uevent_seqnum
+ Modules linked in:
+ CPU: 0 Tainted: G B (2.6.34-902-omap4 #6-Ubuntu)
+ PC is at __bug+0x1c/0x28
+ LR is at __bug+0x18/0x28
+ pc : [<c0040408>] lr : [<c0040404>] psr: 20000113
+ sp : dcbffde8 ip : df894220 fp : 00000000
+ r10: 00000000 r9 : 00000000 r8 : 00000000
+ r7 : 00000085 r6 : dcbffe08 r5 : 00000000 r4 : c06bd028
+ r3 : 00000000 r2 : dcbffddc r1 : c05d65dc r0 : 0000005e
+ Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
+ Control: 10c53c7d Table: 9cb2804a DAC: 00000015
+ Process init (pid: 159, stack limit = 0xdcbfe2f0)
+ Stack: (0xdcbffde8 to 0xdcc00000)
+ fde0: df0a8000 c02b0098 c06bd028 c02bf890 00002030 00003720
+ fe00: 00002020 00000a30 00000000 ffffffff 00000000 c04db9e4 31f8000f 0020cccc
+ fe20: 0001d2f2 0001007b c06bd028 00000001 c06a63bc c02bfe04 00000085 00000002
+ fe40: 00000000 da425740 dcbfe000 c00ab6c0 c06a6380 00000085 c06a63bc da425740
+ fe60: 00000000 dcbfe000 beb4c274 c00ad834 00000085 00000000 c003a984 dcbffea0
+ fe80: 00000000 c003c07c 60000113 ffffffff fa240100 00000085 00000001 c04de988
+ fea0: beb4c274 00000000 00000000 00000000 dcbfffb0 0000081f dcb31ba0 dcb3b9c0
+ fec0: dcb31bd4 400180f0 beb4c274 00000000 00000000 dcbffee8 c003c378 c04e0990
+ fee0: 60000113 ffffffff beb4c274 0000081f 0000081f c06b1444 beb4c274 dcbfffb0
+ ff00: 00000000 400180f0 40104000 c003c378 c06b0218 c04e0d5c 00000000 00000002
+ ff20: c06a0000 c04dee14 22af3d82 dcb38288 00000000 dcbfe000 00000011 c0075960
+ ff40: 22c166ab ffffffff dcbfff8c 00000000 00000000 c04de92c 40018158 c06bfbf0
+ ff60: 0000009f dcb3b9c0 dcbfe000 dcb38420 00000000 00000000 00000000 00000000
+ ff80: 00000000 dcbfffac d964e044 dcbfffa0 c006cb2c c028309c 40000013 ffffffff
+ ffa0: beb4c290 00000001 beb4c2a0 c04dede0 00001210 4001e050 4006f350 00094cb0
+ ffc0: 40018158 beb4c290 00000001 beb4c2a0 00000000 400180f0 40104000 00000000
+ ffe0: 00000078 beb4c290 4008e1d9 4006f34e 00000030 ffffffff 00000fff 00001000
+ [<c0040408>] (__bug+0x1c/0x28) from [<c02b0098>] (dispc_set_digit_size+0x1c/0x68)
+ [<c02b0098>] (dispc_set_digit_size+0x1c/0x68) from [<c02bf890>] (hdmi_power_on+0x150/0x188)
+ [<c02bf890>] (hdmi_power_on+0x150/0x188) from [<c02bfe04>] (hdmi_irq_handler+0x90/0x12c)
+ [<c02bfe04>] (hdmi_irq_handler+0x90/0x12c) from [<c00ab6c0>] (handle_IRQ_event+0xa0/0x190)
+ [<c00ab6c0>] (handle_IRQ_event+0xa0/0x190) from [<c00ad834>] (handle_level_irq+0xb0/0x12c)
+ [<c00ad834>] (handle_level_irq+0xb0/0x12c) from [<c003c07c>] (asm_do_IRQ+0x7c/0xac)
+ [<c003c07c>] (asm_do_IRQ+0x7c/0xac) from [<c04de988>] (__irq_svc+0x48/0xbc)
+ Exception stack(0xdcbffea0 to 0xdcbffee8)
+ fea0: beb4c274 00000000 00000000 00000000 dcbfffb0 0000081f dcb31ba0 dcb3b9c0
+ fec0: dcb31bd4 400180f0 beb4c274 00000000 00000000 dcbffee8 c003c378 c04e0990
+ fee0: 60000113 ffffffff
+ [<c04de988>] (__irq_svc+0x48/0xbc) from [<c04e0990>] (do_page_fault+0xd0/0x1c4)
+ [<c04e0990>] (do_page_fault+0xd0/0x1c4) from [<c003c378>] (do_DataAbort+0x34/0x98)
+ [<c003c378>] (do_DataAbort+0x34/0x98) from [<c04dede0>] (ret_from_exception+0x0/0x10)
+ Exception stack(0xdcbfffb0 to 0xdcbffff8)
+ ffa0: 00001210 4001e050 4006f350 00094cb0
+ ffc0: 40018158 beb4c290 00000001 beb4c2a0 00000000 400180f0 40104000 00000000
+ ffe0: 00000078 beb4c290 4008e1d9 4006f34e 00000030 ffffffff
+ Code: e59f0010 e1a01003 eb126d71 e3a03000 (e5833000)
+ ---[ end trace 7fb6b32c16c3d45e ]---
+ Kernel panic - not syncing: Fatal exception in interrupt
+ [<c0043684>] (unwind_backtrace+0x0/0xe4) from [<c04db944>] (panic+0x44/0xcc)
+ [<c04db944>] (panic+0x44/0xcc) from [<c0040a7c>] (die+0xd4/0xfc)
+ [<c0040a7c>] (die+0xd4/0xfc) from [<c00446e8>] (__do_kernel_fault+0x64/0x84)
+ [<c00446e8>] (__do_kernel_fault+0x64/0x84) from [<c04e0a68>] (do_page_fault+0x1a8/0x1c4)
+ [<c04e0a68>] (do_page_fault+0x1a8/0x1c4) from [<c003c378>] (do_DataAbort+0x34/0x98)
+ [<c003c378>] (do_DataAbort+0x34/0x98) from [<c04de92c>] (__dabt_svc+0x4c/0x60)
+ Exception stack(0xdcbffda0 to 0xdcbffde8)
+ fda0: 0000005e c05d65dc dcbffddc 00000000 c06bd028 00000000 dcbffe08 00000085
+ fdc0: 00000000 00000000 00000000 00000000 df894220 dcbffde8 c0040404 c0040408
+ fde0: 20000113 ffffffff
+ [<c04de92c>] (__dabt_svc+0x4c/0x60) from [<c0040408>] (__bug+0x1c/0x28)
+ [<c0040408>] (__bug+0x1c/0x28) from [<c02b0098>] (dispc_set_digit_size+0x1c/0x68)
+ [<c02b0098>] (dispc_set_digit_size+0x1c/0x68) from [<c02bf890>] (hdmi_power_on+0x150/0x188)
+ [<c02bf890>] (hdmi_power_on+0x150/0x188) from [<c02bfe04>] (hdmi_irq_handler+0x90/0x12c)
+ [<c02bfe04>] (hdmi_irq_handler+0x90/0x12c) from [<c00ab6c0>] (handle_IRQ_event+0xa0/0x190)
+ [<c00ab6c0>] (handle_IRQ_event+0xa0/0x190) from [<c00ad834>] (handle_level_irq+0xb0/0x12c)
+ [<c00ad834>] (handle_level_irq+0xb0/0x12c) from [<c003c07c>] (asm_do_IRQ+0x7c/0xac)
+ [<c003c07c>] (asm_do_IRQ+0x7c/0xac) from [<c04de988>] (__irq_svc+0x48/0xbc)
+ Exception stack(0xdcbffea0 to 0xdcbffee8)
+ fea0: beb4c274 00000000 00000000 00000000 dcbfffb0 0000081f dcb31ba0 dcb3b9c0
+ fec0: dcb31bd4 400180f0 beb4c274 00000000 00000000 dcbffee8 c003c378 c04e0990
+ fee0: 60000113 ffffffff
+ [<c04de988>] (__irq_svc+0x48/0xbc) from [<c04e0990>] (do_page_fault+0xd0/0x1c4)
+ [<c04e0990>] (do_page_fault+0xd0/0x1c4) from [<c003c378>] (do_DataAbort+0x34/0x98)
+ [<c003c378>] (do_DataAbort+0x34/0x98) from [<c04dede0>] (ret_from_exception+0x0/0x10)
+ Exception stack(0xdcbfffb0 to 0xdcbffff8)
+ ffa0: 00001210 4001e050 4006f350 00094cb0
+ ffc0: 40018158 beb4c290 00000001 beb4c2a0 00000000 400180f0 40104000 00000000
+ ffe0: 00000078 beb4c290 4008e1d9 4006f34e 00000030 ffffffff
+ CPU1: stopping
+ [<c0043684>] (unwind_backtrace+0x0/0xe4) from [<c004204c>] (ipi_cpu_stop+0x20/0x48)
+ [<c004204c>] (ipi_cpu_stop+0x20/0x48) from [<c003c268>] (do_IPI+0xc0/0x104)
+ [<c003c268>] (do_IPI+0xc0/0x104) from [<c04de988>] (__irq_svc+0x48/0xbc)
+ Exception stack(0xdc857fa0 to 0xdc857fe8)
+ 7fa0: 00000001 dcb39ce0 dc857fe8 00000000 dc856000 00000015 10c03c7d c070ef28
+ 7fc0: 00000000 410fc091 00000000 00000000 dcb36044 dc857fe8 c003dc78 c003dc7c
+ 7fe0: 60000013 ffffffff
+ [<c04de988>] (__irq_svc+0x48/0xbc) from [<c003dc7c>] (default_idle+0x24/0x28)
+ [<c003dc7c>] (default_idle+0x24/0x28) from [<c003e168>] (cpu_idle+0x74/0xc4)
+ [<c003e168>] (cpu_idle+0x74/0xc4) from [<80008080>] (0x80008080)
--
Unable to handle kernel NULL pointer dereference at virtual address 00000000
https://bugs.launchpad.net/bugs/612895
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