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For LibOS

launchpad

size_t reserve_size = (((info.base + info.len) / 2) + PAGE_SIZE - 1) & -PAGE_SIZE;

in zircon/system/lib/launchpad/launchpad.c line 464 changed like this:

size_t reserve_size = (info.base + info.len / 2 + PAGE_SIZE - 1) & -PAGE_SIZE;

process_builder

let reserve_size = util::page_end((info.base + info.len) / 2) - info.base;

in src/lib/process_builder/src/lib.rs line 802 changed like this:

let reserve_size = util::page_end(info.len / 2);