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===== 1. Study Illumos LX Zone Source Code =====
* '''Location''': The relevant code is in the Illumos gate repository, specifically under <code>usr/src/uts/common/brand/lx/</code> and related directories. Key files include:
** <code>lx_syscalls.c</code>: Handles Linux system call emulation.
** <code>lx_cgroups.c</code>: Implements cgroups support.
** <code>lx_namespace.c</code>: Manages Linux namespace emulation.
** <code>lx_fanotify.c</code>: Provides fanotify support.
* '''Key Insight''': Illumos has extended its kernel to natively support these features for LX zones, rather than just translating them to existing Solaris/Illumos mechanisms. This suggests FreeBSD may need a hybrid approach—either adding native support or building a more comprehensive translation layer.