x264 r1041 - Segmentation Fault

[LoRd_MuldeR]

I just compiled x264 r1041 as a DLL to use it with Avidemux. Did everything as I do it all the time.

But the build will crash right after the encoding process starts:

Program received signal SIGSEGV, Segmentation fault.
[Switching to thread 4236.0xf7c]
0x67619a45 in block_residual_write_cabac (h=<value optimized out>,
    cb=0xb83d380, i_ctxBlockCat=<value optimized out>, i_idx=1, l=0x5d28ec0,
    i_count=16) at ./common/bs.h:232
232             return x264_ue_size_tab[(val+1)>>8] + 16;
(gdb) bt
#0  0x67619a45 in block_residual_write_cabac (h=<value optimized out>,
    cb=0xb83d380, i_ctxBlockCat=<value optimized out>, i_idx=1, l=0x5d28ec0,
    i_count=16) at ./common/bs.h:232
#1  0x67629d50 in x264_rd_cost_part (h=0x5d272c0, i_lambda2=9289, i4=1,
    i_pixel=6) at encoder/cabac.c:1109
#2  0x67635761 in x264_me_refine_qpel_rd (h=0x5d272c0, m=0xb83e2f0,
    i_lambda2=9289, i4=1, i_list=0) at encoder/me.c:1000
#3  0x6762f9e6 in x264_macroblock_analyse (h=0x5d272c0)
    at encoder/analyse.c:2415
#4  0x676573d5 in x264_slice_write (h=0x5d272c0) at encoder/encoder.c:1177
#5  0x6766e5a4 in x264_stack_align () from d:\Avidemux 2.4\libx264-65.dll
#6  0x676530cd in x264_slices_write (h=0x5d272c0) at encoder/encoder.c:1326
#7  0x611812fa in ptw32_threadStart@4 () from d:\Avidemux 2.4\pthreadGC2.dll
#8  0x77bcb530 in msvcrt!_endthreadex () from C:\WINDOWS\syswow64\msvcrt.dll
#9  0x7d4dfe21 in KERNEL32!GetConsoleOutputCP ()
   from C:\WINDOWS\syswow64\kernel32.dll
#10 0x09301230 in ?? ()
#11 0x00000000 in ?? ()
(gdb)

Compiler is GCC 4.3.2-tdm-1, which used to work fine up to (including) r1038. I did not use any custom CFLAGS for the debug build.

No patches applied, except for the alignment fix (as required to get a working DLL). Any ideas?