Hi, Are you by any chance calling 'kill' or attempting to terminate the threads internally in your application? We have seen this crash sometimes if we do Ctrl C while running DSPLink applications. Also, after this crash, everything still continues normally. This is a known issue documented in the Release Notes. Are you seeing the similar thing, or is it something that's coming even if you're not killing the threads? Does the kernel hang or are you able to continue after this?
Regards, Mugdha ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Yuvraj Pasi Sent: Tuesday, March 23, 2010 6:00 PM To: Uppal, Deepali Cc: [email protected] Subject: Re: kernel crash while running h264 codec on DM6446 based board Hi Deepali, Thanks for the reply. The scenario described in the FAQ could be true because sometimes (once in 10 times) i'm getting different crash than described previously. [<bf00d4b0>] (SYNC_WaitSEM+0x0/0x260 [dsplinkk]) from [<bf00c4d4>] (UEVENT_AddBufByPid+0x150/0x17c [dsplinkk]) [<bf00c384>] (UEVENT_AddBufByPid+0x0/0x17c [dsplinkk]) from [<bf00c714>] (NOTIFY_KnlFinalize+0x14c/0x16c [dsplinkk]) [<bf00c5c8>] (NOTIFY_KnlFinalize+0x0/0x16c [dsplinkk]) from [<bf008930>] (DRV_CallAPI+0x778/0x8f0 [dsplinkk]) r6:00008000 r5:00008000 r4:c14edf00 [<bf0081b8>] (DRV_CallAPI+0x0/0x8f0 [dsplinkk]) from [<bf008138>] (DRV_Ioctl+0x90/0x110 [dsplinkk]) r7:00007302 r6:00000000 r5:4391c0b0 r4:00000000 [<bf0080a8>] (DRV_Ioctl+0x0/0x110 [dsplinkk]) from [<c0088f10>] (do_ioctl+0x74/0x84) r7:0000000b r6:4391c0b0 r5:ffffffe7 r4:c6fed160 [<c0088e9c>] (do_ioctl+0x0/0x84) from [<c00891ac>] (vfs_ioctl+0x28c/0x2ac) r6:00000000 r5:4391c0b0 r4:c6fed160 [<c0088f20>] (vfs_ioctl+0x0/0x2ac) from [<c0089210>] (sys_ioctl+0x44/0x68) r7:c6fed160 r6:00007302 r5:4391c0b0 r4:fffffff7 [<c00891cc>] (sys_ioctl+0x0/0x68) from [<c0027e20>] (ret_fast_syscall+0x0/0x2c) According to the FAQ it is a problem with syncronisation between threads. How can I find out which thread calls are causing this problem because my application uses different threads for video encode & decoding , audio encoding & decoding. The backtrace given above is of no help!!! On Mon, Mar 22, 2010 at 11:25 PM, Uppal, Deepali <[email protected]<mailto:[email protected]>> wrote: Hello, Please check here: http://wiki.davincidsp.com/index.php/DSPLink_FAQs#Why_does_the_MSGQ_get_API_call_in_my_application_crash.3F Does this FAQ apply to your scenario? Thanks and Regards, Deepali Uppal DSP/BIOS Link ________________________________ From: davinci-linux-open-source-bounces+deepali=ti.com<http://ti.com>@linux.davincidsp.com<http://linux.davincidsp.com> [mailto:davinci-linux-open-source-bounces+deepali<mailto:davinci-linux-open-source-bounces%2Bdeepali>=ti.com<http://ti.com>@linux.davincidsp.com<http://linux.davincidsp.com>] On Behalf Of Yuvraj Pasi Sent: Friday, March 19, 2010 2:35 PM To: [email protected]<mailto:[email protected]> Subject: kernel crash while running h264 codec on DM6446 based board Hi all, we are using our own custom made board with DM6446. I have written a camera capture application which captures images encodes it in H264, decodes it & then display it on fb. It runs smoothly for some time & then crashes . How do I debug this crash dump so that i can find the source of the problem. ortp-m, *pte=00000000essage-get_pictu, *ppte=00000000re_buffer_size 1 07 ortp-messageInternal error: Oops: 7 [#1] Modules linked in: dsplinkk cmemk CPU: 0 Not tainted (2.6.23-davinci1 #219) PC is at SYNC_WaitSEM+0x1d0/0x260 [dsplinkk] LR is at __atomic_notifier_call_chain+0x1c/0x24 pc : [<bf00d680>] lr : [<c004959c>] psr: 50000013 sp : c1975dd0 ip : 00000000 fp : c1975e44 r10: c0038e14 r9 : 00008000 r8 : c7930008 r7 : c1974000 r6 : c1975de8 r5 : c7930000 r4 : c1975de0 r3 : 00000001 r2 : c04bb900 r1 : 00000002 r0 : c04bb900 Flags: nZcV IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 0005317f Table: 81794000 DAC: 00000015 Process linphonec (pid: 1118, stack limit = 0xc1974260) Stack: (0xc1975dd0 to 0xc1976000) 5dc0: 00000000 c04bb900 c0038e14 00000000 5de0: 00000000 00000000 00000001 c04bb900 c0038e14 c7930008 c7930008 c0038edc 5e00: 60000013 ffffffff 00000000 bf02211c 00000000 c7932008 c1975e44 00008000 5e20: c15174c0 bf02211c c67526e0 bf02210c 00000000 00000000 c1975e7c c1975e48 5e40: bf00c4d4 bf00d4c0 bf00b8d8 ffffffff c1975e8c c1975e8c 00000000 00008000 5e60: 00007302 c002861c c1974000 00900036 c1975eac c1975e80 bf00c714 bf00c394 5e80: 00000000 00000000 c1975f0c 00000000 c0027ab4 c1975f00 00008000 00008000 5ea0: c1975efc c1975eb0 bf008930 bf00c5d8 40020000 c6687288 00000000 40020000 5ec0: 4002b000 40020000 c748d23c c1975f1c c1975f0c c1975ee0 c006e18c 43f60170 5ee0: 00000000 43f60170 00000000 00007302 c1975f34 c1975f00 bf008138 bf0081c8 5f00: 00008000 00000000 40020480 00008200 001eff10 00008000 c75758a0 ffffffe7 5f20: 43f60170 00000011 c1975f54 c1975f38 c008b490 bf0080b8 c1975f84 c75758a0 5f40: 43f60170 00000000 c1975f7c c1975f58 c008b72c c008b42c 00008680 c6752714 5f60: fffffff7 43f60170 00007302 c75758a0 c1975fa4 c1975f80 c008b790 c008b4b0 5f80: c0073d9c 00000001 001f02b0 43f61000 00215d70 00000036 00000000 c1975fa8 5fa0: c0027e20 c008b75c 001f02b0 43f61000 00000011 00007302 43f60170 00213e60 5fc0: 001f02b0 43f61000 00215d70 00000108 00215d34 000005a0 00000000 43f6016c 5fe0: 001d6024 43f60110 000221e4 401d2294 80000010 00000011 020030fe e2200000 Backtrace: [<bf00d4b0>] (SYNC_WaitSEM+0x0/0x260 [dsplinkk]) from [<bf00c4d4>] (UEVENT_AddBufByPid+0x150/0x17c [dsplinkk]) [<bf00c384>] (UEVENT_AddBufByPid+0x0/0x17c [dsplinkk]) from [<bf00c714>] (NOTIFY_KnlFinalize+0x14c/0x16c [dsplinkk]) [<bf00c5c8>] (NOTIFY_KnlFinalize+0x0/0x16c [dsplinkk]) from [<bf008930>] (DRV_CallAPI+0x778/0x8f0 [dsplinkk]) r6:00008000 r5:00008000 r4:c1975f00 [<bf0081b8>] (DRV_CallAPI+0x0/0x8f0 [dsplinkk]) from [<bf008138>] (DRV_Ioctl+0x90/0x110 [dsplinkk]) r7:00007302 r6:00000000 r5:43f60170 r4:00000000 [<bf0080a8>] (DRV_Ioctl+0x0/0x110 [dsplinkk]) from [<c008b490>] (do_ioctl+0x74/0x84) r7:00000011 r6:43f60170 r5:ffffffe7 r4:c75758a0 [<c008b41c>] (do_ioctl+0x0/0x84) from [<c008b72c>] (vfs_ioctl+0x28c/0x2ac) r6:00000000 r5:43f60170 r4:c75758a0 [<c008b4a0>] (vfs_ioctl+0x0/0x2ac) from [<c008b790>] (sys_ioctl+0x44/0x68) r7:c75758a0 r6:00007302 r5:43f60170 r4:fffffff7 [<c008b74c>] (sys_ioctl+0x0/0x68) from [<c0027e20>] (ret_fast_syscall+0x0/0x2c) r7:00000036 r6:00215d70 r5:43f61000 r4:001f02b0 Code: eb410c34 e597200c e3a03001 e5823000 (e5953010) -- Thanks & regards yuvraj pasi -- Thanks & regards yuvraj pasi
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