Rosetta x86 `mmap()` 系统调用行为异常,导致 SIGSEGV

1. Start Colima with VZ and Rosetta enabled:

colima start --arch aarch64 --vm-type vz --vz-rosetta

1. Run an Alpine x86_64 PHP container enabling Opcache (CLI mode). This triggers the memory corruption immediately:

Docker run --rm --platform linux/amd64 php:8.3-cli-alpine ash -c \
  'php -n -dzend_extension=opcache -dopcache.enable_cli=1 -v'

Result: Segmentation fault (core dumped)

1. (Optional) Run an Ubuntu x86_64 PHP container enabling Opcache (CLI mode). This triggers a different error message:

Docker run --rm --platform linux/amd64 php:8.3-cli sh -c \
  'php -n -dzend_extension=opcache -dopcache.enable_cli=1 -v'

Result:

rosetta error: futex(FUTEX_LOCK_PI_PRIVATE) failure: 35
Trace/breakpoint trap (core dumped)

1. (Optional) Run this C Proof of Concept which maps a "Survivor" page, writes data to it, and then attempts to overwrite it with a MAP_FIXED | MAP_HUGETLB allocation that is guaranteed to fail.