2013/5/7 Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>: > Hi Jean-Philippe, > > (CC'ed linux-omap) > > On Monday 06 May 2013 10:59:07 jean-philippe francois wrote: >> Hi, >> >> I am trying to use the previewer to debayer pictures coming from the >> filesystem instead of the capture hardware. The media-ctl links are as >> follows : >> >> preview V4L input -> preview pad 0 (sink), preview pad 1(src) >> ->preview V4L output. >> >> Input output format is set via media-ctl for the preview element, and >> via the V4L2 api for the V4L2 file descriptors. I am using USERPTR >> buffer allocated via memalign, and the application goes like this : >> >> REQBUFS 1 buf on on input >> REQBUFS 1 buf on output >> alloc buffers >> QBUF on input >> QBUF on output >> STREAMON on output >> STREAMON on input >> DQBUF on output. >> >> The board either panics or hangs (though HUNG_TASK_DETECTION and >> SOFT_LOCKUP_DETECTION is set) > > Does it happen every time you run the application, including on the first run > after a cold boot ? Yes, every time. Previewer usage in device to memory mode works fine. Tested on 3.6.11 and 3.9 with the same results. The only difference observed so far between runs is that sometimes the board hangs without anything printed on the console. > >> Please find attached the panic log, and the application code. > > (log inlined) > >> omap3isp omap3isp: can't find source, failing now >> omap3isp omap3isp: can't find source, failing now > > Those are harmless warnings. I have a fix for them, I'll repost it. > >> ------------[ cut here ]------------ >> Kernel BUG at c019bb1c [verbose debug info unavailable] >> Internal error: Oops - BUG: 0 [#1] PREEMPT ARM >> Modules linked in: omap3_isp ov10630(O) >> CPU: 0 Tainted: G O (3.9.0 #3) >> PC is at omap3_l3_app_irq+0x3c/0xbc > > L3 APP interconnect timeout errors are not supposed to happen. This is the > first time I see one. Maybe someone on the linux-omap list will have some > clues regarding how to debug this. > >> LR is at handle_irq_event_percpu+0x28/0x10c >> pc : [<c019bb1c>] lr : [<c006b354>] psr: 20000193 >> sp : c0507e58 ip : 00060000 fp : 00000000 >> r10: cf804dc0 r9 : ffff9e65 r8 : 00200000 >> r7 : 00000000 r6 : 00001000 r5 : 00000000 r4 : cf87f3c0 >> r3 : 00000000 r2 : 00001000 r1 : cf8ffc80 r0 : 00001000 >> Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel >> Control: 10c5387d Table: 8fa80019 DAC: 00000015 >> Process swapper (pid: 0, stack limit = 0xc0506230) >> Stack: (0xc0507e58 to 0xc0508000) >> 7e40: 00000002 cf87f3c0 >> 7e60:0000001a 00000000 00000000 c006b354 cf804dc0 cf87f3c0 cf804dc0 c0506000 >> 7e80:cf87f3c0 c0507f0c 00200000 ffff9e65 c054d640 c006b490 cf804dc0 c0507f80 >> 7ea0:ffffffff c006da68 0000001a c006ac44 0000001a c000ebc8 0000000a c0507ed8 >> 7ec0:0000001a c0008594 c054d600 c003400c 60000113 c000df00 00000001 c054d600 >> 7ee0:00000101 c0506000 00000002 00000000 ffffffff c0507fb4 00200000 ffff9e65 >> 7f00:c054d640 00000000 c0526f28 c0507f20 c054d600 c003400c 60000113 ffffffff >> 7f20:cf805c40 c0506000 c0511c98 c0507fb4 80004059 00000035 00000000 ffffffff >> 7f40:c0507fb4 80004059 413fc082 00000000 00000000 c003440c 00000035 c000ebcc >> 7f60:00000025 c0507f80 00000035 c0008594 c0506008 c000ed78 20000013 c000df00 >> 7f80:c0547548 c050fb50 00000001 c0506000 c050e0d8 00000000 c04fb954 c0510844 >> 7fa0:80004059 413fc082 00000000 00000000 00000000 c0507fc8 c0506008 c000ed78 >> 7fc0:20000013 ffffffff c036c958 c04da7a8 ffffffff ffffffff c04da344 00000000 >> 7fe0:c04fb958 271ae41c 00000000 10c53c7d c050e028 80008070 00000000 00000000 >> [<c019bb1c>] (omap3_l3_app_irq+0x3c/0xbc) >> from [<c006b354>] (handle_irq_event_percpu+0x28/0x10c) >> [<c006b354>] (handle_irq_event_percpu+0x28/0x10c) >> from [<c006b490>] (handle_irq_event+0x58/0x74) >> [<c006b490>] (handle_irq_event+0x58/0x74) >> from [<c006da68>] (handle_level_irq+0xd8/0x110) >> [<c006da68>] (handle_level_irq+0xd8/0x110) >> from [<c006ac44>] (generic_handle_irq+0x20/0x30) >> [<c006ac44>] (generic_handle_irq+0x20/0x30) >> from [<c000ebc8>] (handle_IRQ+0x60/0x84) >> [<c000ebc8>] (handle_IRQ+0x60/0x84) >> from [<c0008594>] (omap3_intc_handle_irq+0x58/0x6c) >> [<c0008594>] (omap3_intc_handle_irq+0x58/0x6c) >> from [<c000df00>] (__irq_svc+0x40/0x70) >> Exception stack(0xc0507ed8 to 0xc0507f20) >> 7ec0: 00000001 c054d600 >> 7ee0:00000101 c0506000 00000002 00000000 ffffffff c0507fb4 00200000 ffff9e65 >> 7f00:c054d640 00000000 c0526f28 c0507f20 c054d600 c003400c 60000113 ffffffff >> [<c000df00>] (__irq_svc+0x40/0x70) >> from [<c003400c>] (__do_softirq+0x60/0x184) >> [<c003400c>] (__do_softirq+0x60/0x184) >> from [<c003440c>] (irq_exit+0x70/0xc4) >> [<c003440c>] (irq_exit+0x70/0xc4) >> from [<c000ebcc>] (handle_IRQ+0x64/0x84) >> [<c000ebcc>] (handle_IRQ+0x64/0x84) >> from [<c0008594>] (omap3_intc_handle_irq+0x58/0x6c) >> [<c0008594>] (omap3_intc_handle_irq+0x58/0x6c) >> from [<c000df00>] (__irq_svc+0x40/0x70) >> Exception stack(0xc0507f80 to 0xc0507fc8) >> 7f80:c0547548 c050fb50 00000001 c0506000 c050e0d8 00000000 c04fb954 c0510844 >> 7fa0:80004059 413fc082 00000000 00000000 00000000 c0507fc8 c0506008 c000ed78 >> 7fc0:20000013 ffffffff >> [<c000df00>] (__irq_svc+0x40/0x70) from [<c000ed78>] (cpu_idle+0x60/0x90) >> [<c000ed78>] (cpu_idle+0x60/0x90) >> from [<c04da7a8>] (start_kernel+0x234/0x284) >> Code: e0022006 e0033007 e1920003 0a000002 (e7f001f2) >> ---[ end trace 58d781a6c1166535 ]--- >> Kernel panic - not syncing: Fatal exception in interrupt > > -- > Regards, > > Laurent Pinchart > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
