From timurrrr@google.com on November 02, 2011 09:01:17

[per chat] - not high priority now.
I'll just put an instruction how I got there so it's possible to re-do later:

1. Build Dr. Memory with this patch applied:
   <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
   --- drmemory/alloc_drmem.c
   +++ drmemory/alloc_drmem.c
   @@ -2036,6 +2036,7 @@ check_unaddressable_exceptions(bool write, app_loc_t *loc, app_pc addr, uint sz,
   app_pc base;
   size_t sz = allocation_size(addr, &base);
   if (sz > 0 && base != NULL) {

•        ASSERT(0, "BOO?!");
       LOG(1, "WARNING: unknown region "PFX"-"PFX": marking as defined\n",
           base, base+sz);
       ASSERT(!dr_memory_is_dr_internal(addr) &&
  

2. Have Cygwin installed, download yasm.exe and put it into Cygwin bin/

3. (In a Cygwin shell)
   git clone http://git.chromium.org/webm/libvpx.git vpx
   cd vpx
   mkdir b
   cd b
   ../configure --target=x86-win32-vs9 --enable-static-msvcrt
   make
   cd ..
   git clone http://git.chromium.org/webm/vp8-test-vectors.git cd vp8-test-vectors/

4. Run the following command until the assert messagebox shows up:
   ./run_tests.sh --exec="/bin/drmemory.exe -pause_at_assert -no_check_leaks -no_count_leaks -no_check_uninitialized -batch ../b/Win32/Debug/vpxdec.exe" .

Owner: ---
Labels: -Priority-Medium Priority-Low

From timurrrr@google.com on November 03, 2011 03:24:03

FTR, this also happens in the "full" mode.