What steps will reproduce the problem?
1. Open db providing write_buffer_size above 1G (with x64 platform)
What is the expected output? What do you see instead?
Buffer size is expected to set to the specified value, as no restrictions
described in the options.h. Instead, buffer size will be set to the minimum
value of 64M (not even max, as possibly writer assumed when providing
SantizeOptions function implementation.
The core of the problem is that
ClipToRange
template function when called as
ClipToRange(var_size_t, 64<<10, 1<<30);
will deduce template parameters as V = int,
so static_cast<int>(*var_size_t_ptr) will result in possible numeric overflow
when var_size_t is greater than max_int. As a result
static_cast<V>(*ptr) > maxvalue will fail on common architectures and
static_cast<V>(*ptr) < minvalue will succeed that is opposite to the actual
situation.
Original issue reported on code.google.com by sido...@satissoft.ru on 5 Nov 2013 at 12:27
Original issue reported on code.google.com by
sido...@satissoft.ruon 5 Nov 2013 at 12:27