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I encounter the "unable to obtain mapped memory" error when compiling an x64 project with precompiled headers disabled. The PCH_DIAG output reveals the following virtual address space information:
=== Displaying Details of Virtual Address Space ===
Page size: 0000000000001000
Minimum application address: 0000000000010000
Maximum application address: 000007FFFFFEFFFF
Base Address: 0000000000034000 Region Size: 000000000000C000
I'm puzzled as to why it attempts to allocate more than 8 terabytes of virtual memory.
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Can you please provide us a reproducer along with the compiler version and command line options?
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