Hi all, I am using linux 2.6.23 kernel on a custom made board with davinci6446 processor. I am trying to capture composite video signal & have written an application for it . my problem is whenever i try to VIDIOC_DQBUF the kernel crashes as follows.
buffer waiton: -EINTR dqbuf: waiton returned -4 Bad page state in process 'a.out' page:c0455000 flags:0x00000400 mapping:00000000 mapcount:0 count:0 Trying to fix it up, but a reboot is needed Backtrace: [<c002d55c>] (dump_stack+0x0/0x14) from [<c0062f8c>] (bad_page+0x60/0x9c) [<c0062f2c>] (bad_page+0x0/0x9c) from [<c006343c>] (__free_pages_ok+0x80/0x298) r6:00000000 r5:c0455000 r4:c0455000 [<c00633bc>] (__free_pages_ok+0x0/0x298) from [<c0063a60>] (__free_pages+0x48/0x4c) [<c0063a18>] (__free_pages+0x0/0x4c) from [<c0063a94>] (free_pages+0x30/0x38) [<c0063a64>] (free_pages+0x0/0x38) from [<c0219090>] (buffer_release+0x54/0x70) [<c021903c>] (buffer_release+0x0/0x70) from [<c0216368>] (videobuf_queue_cancel+0xc0/0xe0) r4:c040012c [<c02162a8>] (videobuf_queue_cancel+0x0/0xe0) from [<c0218e48>] (vpfe_release+0x70/0xd0) r7:c05d4dc0 r6:c0400240 r5:c6f10de0 r�TI UBL Version: 1.12, Flash type: NAND i tried debugging the source & found out func. videobuf_waiton(...) in file driver/media/video/video-buf.c is returning the error -EINTR (don't know what that mean??) & after that kernel crashes & i have to reboot the system ?? Plz help or at least guide me to write direction!!!! -- Thanks & regards yuvraj pasi
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