Status: New
Owner: ----
New issue 3857 by [email protected]: max_old_space_size broken for
increasing heap size
https://code.google.com/p/v8/issues/detail?id=3857
You can no longer make the heap size on a 64-bit machine greater than
2047Mbtes, because some casting code was lost between the end of 3.27.0 and
3.27.1
Currently, in ConfigureHeap() in heap.cc, we have this code:
if (max_old_space_size > 0) {
max_old_generation_size_ = max_old_space_size * MB;
}
Since max_old_space_size is an int, (max_old_space_size * MB) will wrap
around and might be negative, and will certainly never be 2Gbytes or
greater.
This code needs to change to
max_old_generation_size_ = static_cast<intptr_t>(max_old_space_size) * MB;
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