[x264-devel] x262 segfault with gcc 5.4

Alex Giladi alex.giladi at gmail.com
Thu Aug 4 00:41:50 CEST 2016


I am trying to run x262, and it looks like it runs well (and produces good
MPEG-2 video) when compiled with GCC 4.8.

It segfaults when compiled with GCC 5.4:

#0  0x0000000000441220 in x264_quant_8x8_avx2 ()
#1  0x00000000004c9b56 in x264_mb_encode_intra_block_mpeg2 ()
#2  0x00000000004cec59 in x264_macroblock_encode ()
#3  0x000000000048e1d2 in x264_rd_cost_mb ()
#4  0x00000000004a38f2 in x264_intra_rd ()
#5  0x00000000004a8bb2 in x264_macroblock_analyse ()
#6  0x0000000000431a50 in x264_slice_write ()
#7  0x00000000004433b6 in x264_stack_align ()
#8  0x000000000042dafc in x264_slices_write ()
#9  0x00000000004433b6 in x264_stack_align ()
#10 0x000000000043d36d in x264_threadpool_thread ()
#11 0x00007f150407c6fa in start_thread (arg=0x7f1502ca9700) at
pthread_create.c:333
#12 0x00007f1503db2b5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Has anyone seen this behaviour?

Best,
Alex.
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