vectors: segmentation fault __memcpy_sse2_unaligned () #1
Description
compiled with gcc 5.4.0 on x64 linux with the flags LUA_USE_ASSERT, CCDEBUG=-g and CCOPT=-fomit-frame-pointer
I applied this patch on the vectors branch to get it compiling
https://gist.github.com/CapsAdmin/00326ad8eda9ca48557013bcd90546fc
Only happens when jit is on.
Program received signal SIGSEGV, Segmentation fault.
__memcpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:38
38 ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S: No such file or directory.
(gdb) bt
#0 __memcpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:38
#1 0x000000000043f1dd in lj_cf_ffi_copy (L=0x40000378) at lib_ffi.c:721
#2 0x000000000044249e in lj_BC_FUNCC ()
#3 0x000000000041ac9e in lua_pcall (L=0x40000378, nargs=0, nresults=-1, errfunc=2) at lj_api.c:1055
#4 0x000000000040440e in docall (L=0x40000378, narg=0, clear=0) at luajit.c:121
#5 0x0000000000404dee in handle_script (L=0x40000378, argv=0x7fffffffde28, n=1) at luajit.c:288
#6 0x0000000000405b23 in pmain (L=0x40000378) at luajit.c:537
#7 0x000000000044249e in lj_BC_FUNCC ()
#8 0x000000000041af48 in lua_cpcall (L=0x40000378, func=0x405965 <pmain>, ud=0x0) at lj_api.c:1079
#9 0x0000000000405c29 in main (argc=2, argv=0x7fffffffde28) at luajit.c:565
(gdb)
I'm able to pinpoint where it crashes in some situations but it seems random and attempting to debug the code will move the crash somewhere else. When it's not crashing there is weird behavior such as random nonsense lua errors.