The following bug has been logged on the website:
Bug reference: 6460
Logged by: lxzou
Email address: zoulx1982@163.com
PostgreSQL version: 9.1.2
Operating system: Windows Server 2008 64 bit
Description:=20=20=20=20=20=20=20=20
Hi,
I startup postgres in win server 2008 64-bit with
shared_buffers=3D1073741819, but find it doesn't work.
I debug the postgres use vs2008, and find it enter an Infinite loop in
my_log2.
when the parameter num is between (2^30) + 1 and (2^31) -1, it will be an
Infinite loop.
because long in win 64 is 4 bytes, so (2^30) << 1 is 2^31, i.e. -2^31.
move left again it will be zero.
size_t in win64 is 8 bytes=EF=BC=8Cso add_size and mul_size can't check ove=
rflow,
but in win32 it can do that.
So, whether we should use Size instead of long ?
Best wishes
