Previously worked around (task 6.2) by removing the one host-attrs resource
(cpuf) from the default set - a custom resource=value arg using any
host-attrs name would still false-mismatch at the controller layer, since
inject_resources() disconnected the worker before the separate controller-
check session ran, and the controller resets host-attrs resources on
disconnect.
Real fix: xce_test's `!<shell-command>` escape is handled in the single
top-level REPL loop before context-specific dispatch, so it works in any
context - including worker mode - without calling leave_ctx()/disconnecting.
inject_resources() now shells out via `!` to run the controller check
in-line, between resupdate and quit, while the worker's connection is still
open. query_controller_resvals()'s comparison logic is unchanged - this is
a pure sequencing fix. cpuf restored to DEFAULT_RESOURCE_ARGS as live proof.
Live-verified: cpuf now MATCHes at the controller layer (was always a false
MISMATCH before); adversarial shell-injection attempt via a malicious
resource name confirmed safe (printf %q quoting); SIGTERM delivered exactly
during the nested check confirmed zero orphaned/zombie processes across 4
independent runs.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Rongsong Shen
b673b7c933
