On Sun, Aug 11, 2019 at 01:29:44AM +0200, Michael Niedermayer wrote: > On Sun, Aug 11, 2019 at 12:57:17AM +0300, Nick Renieris wrote: > > > after this commit the code dies when used with ffplay with floating point > > > exceptions > > > > I tried this on Ubuntu and I can't repro, it works fine. > > Maybe something I changed locally fixed it, please re-test on the new > > revision I'll send in a bit. > > yes, it behaved a bit odd, ill retest with the new patches tomorrow (need to > sleep) > some things i noticed in the previous ones though > it disappeared with some commits in the previous set too > it doesnt happen with ffmpeg > and i have this half useless backtrace: > #0 0x00000000004752cc in dng_decode.isra () > #1 0x0000000000b73b67 in decode_frame () > #2 0x00000000008668d7 in decode_receive_frame_internal () > #3 0x0000000000867488 in avcodec_send_packet () > #4 0x00000000007c002d in try_decode_frame () > #5 0x00000000007c8ad8 in avformat_find_stream_info () > #6 0x00000000004c2b09 in read_thread () > > ill provide better information tomorrow in case it still happens > with the latest set
also occurs with the latest patchset (minus the last 3 patches) heres a proper backtrace: Program received signal SIGFPE, Arithmetic exception. [Switching to Thread 0x7fffdb6a5700 (LWP 19427)] 0x0000000000c4bad1 in dng_decode_tiles (avctx=0x7fffcc002540, frame=0x7fffcc003200) at libavcodec/tiff.c:947 947 has_width_leftover = (s->width % s->tile_width != 0); (gdb) bt Python Exception <type 'exceptions.ImportError'> No module named gdb.frames: #0 0x0000000000c4bad1 in dng_decode_tiles (avctx=0x7fffcc002540, frame=0x7fffcc003200) at libavcodec/tiff.c:947 #1 0x0000000000c4bd95 in dng_decode (avctx=0x7fffcc002540, frame=0x7fffcc003200, avpkt=0x7fffcc003540) at libavcodec/tiff.c:1011 #2 0x0000000000c4fcc4 in decode_frame (avctx=0x7fffcc002540, data=0x7fffcc003200, got_frame=0x7fffdb6a46e8, avpkt=0x7fffcc003540) at libavcodec/tiff.c:1893 #3 0x00000000009005fa in decode_simple_internal (avctx=0x7fffcc002540, frame=0x7fffcc003200) at libavcodec/decode.c:433 #4 0x0000000000901281 in decode_simple_receive_frame (avctx=0x7fffcc002540, frame=0x7fffcc003200) at libavcodec/decode.c:629 #5 0x000000000090134c in decode_receive_frame_internal (avctx=0x7fffcc002540, frame=0x7fffcc003200) at libavcodec/decode.c:647 #6 0x00000000009015a7 in avcodec_send_packet (avctx=0x7fffcc002540, avpkt=0x7fffdb6a4890) at libavcodec/decode.c:705 #7 0x000000000083415b in try_decode_frame (s=0x7fffcc000940, st=0x7fffcc001c80, avpkt=0x7fffdb6a4a40, options=0x7fffcc001380) at libavformat/utils.c:3080 #8 0x000000000083752c in avformat_find_stream_info (ic=0x7fffcc000940, options=0x7fffcc001380) at libavformat/utils.c:3903 #9 0x0000000000422573 in read_thread (arg=0x7fffdb6a6040) at fftools/ffplay.c:2805 #10 0x00007ffff5f1f2ed in SDL_RunThread (data=0x2996dd0) at SDL2-2.0.4/src/thread/SDL_thread.c:282 #11 0x00007ffff5f7d1a9 in RunThread (data=<optimized out>) at SDL2-2.0.4/src/thread/pthread/SDL_systhread.c:75 #12 0x00007ffff0249184 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #13 0x00007fffeff7603d in clone () from /lib/x86_64-linux-gnu/libc.so.6 [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Dictatorship naturally arises out of democracy, and the most aggravated form of tyranny and slavery out of the most extreme liberty. -- Plato
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