[libdv-dev] Re: [Fwd: [Kino-dev] x86_64 crash explored a bit]

[Dean K. <kol...@qw...>]

I haven't really used kino. I need to know exactly how to reproduce the 
crash. I built kino 0.7.5 and clicked some buttons without causing a crash.

It's possible that the crash depends upon the video settings, such as NTSC 
vs PAL, etc. I might need a video file from you.

At 04:24 PM 11/10/2004, Dan Dennedy wrote:
>Dean, will you be able to look into this?
>
>-------- Forwarded Message --------
>From: Georg Ostertag <ge...@os...>
>To: kin...@li...
>Subject: [Kino-dev] x86_64 crash explored a bit
>Date: Wed, 10 Nov 2004 21:18:25 +0100
>Hi,
>
>I am back again with the crash of kino on x86_64 with
>the x86_64 optimized libdv.
>I attached a gdb to kino while crashing it.
>
>that's what I get:
>
>
>Single stepping until exit from function g_main_context_iterate,
>which has no line number information.
>0x0000002a97bcdbbd in g_main_loop_run () from /opt/gnome/lib64/libglib-
>2.0.so.0
>(gdb)
>Single stepping until exit from function g_main_loop_run,
>which has no line number information.
>
>Program received signal SIGSEGV, Segmentation fault.
>vlc_num_bits_block_x86_loop () at encode_x86_64.S:135
>135             movw    (%rdi), %ax
>Current language:  auto; currently asm
>(gdb)
>Detaching after fork from child process 6701.
>0x0000002a98be5f3d in fork () from /lib64/tls/libc.so.6
>(gdb) detach
>
>
>
>using ltrace to follow what's happening, I find as last words
>of kino:
>
>
>dv_parse_header(0x00e24a70, 0x2a9b02e010, 2, 0xffffffff, 413) = 1
>dv_parse_packs(0x00e24a70, 0x2a9b02e010, 0, 64, 0x2a9b02e1f0) =
>0xd8a6a8ff
>_ZNSs4_Rep10_M_destroyERKSaIcE(0x01010700, 0x7fbfffd160, 0x01010718, 0,
>2) = 0
>dv_decode_full_frame(0x00e24a70, 0x2a9b02e010, 1, 0x7fbfffd5b0,
>0x7fbfffd5a0) =
>0
>dv_encode_full_frame(0x01182da0, 0x7fbfffd608, 1, 0x2a9bb2b010,
>0x2a9b8e6c10 <un
>finished ...>
>--- SIGSEGV (Segmentation fault) ---
>
>So I am pretty shure, that there is some bug in the encoding
>part of libdv.
>Unfortunately, I have no idea how to fix it...
>
>Georg