---
id: "bug-1506"
status: "fixed"
status_updated: "2026-09-24"
status_note: ""
component: "scheduler"
severity: "unknown"
timestamp: "2026-08-07T09:05:00Z"
last_seen: "2026-09-19T09:00:00Z"
occurrences: 1
files: ["src/scheduler/testsuite/test_repl_breakpoints_inspection.c"]
tags: ["scheduler-core", "task-12.2", "repl", "xstring", "test-fixture", "makeString"]
related: ["bug-1507"]
legacy: true
---

# bug-1506: sched_repl_breakpoints_inspection_test: repl_dispatch(sim, "break JOB_STATE_CHANGE jobid=12345")…

## Description
sched_repl_breakpoints_inspection_test: repl_dispatch(sim, "break JOB_STATE_CHANGE jobid=12345") stored NULL for the breakpoint's token/filter key/value -- TEST_ASSERT_EQUAL_STRING("jobid", ...) failed with 'Expected jobid Was NULL'.

## Environment
_Not recorded (migrated from buglog.json)._

## Reproduction
_Not recorded (migrated from buglog.json)._

## Root cause
makeString() (src/lib/xstring.c) is an interned-xstring allocator backed by a process-global xstr_table that must be initialized via xstring_table_init() before first use -- xce_sched_core_init() (core.c) is the only call site in the scheduler tree and does this transitively. New task 12.2 unit tests built a bare xce_sched_sim_driver_t via memset(0) and called repl_state_ensure()/repl_dispatch() directly for pure command-dispatch tests, without ever calling xce_sched_core_init() first (the real driver flow always does, via sched_sim_driver_start() before xce_repl_start() runs, so this precondition is always satisfied in production -- only the test fixtures skipped it). With xstr_table uninitialized (NULL), makeString()'s internal key_find()/key_add() against a NULL kvmgr container fail gracefully and return NULL rather than crash, so the bug surfaced as silently-NULL breakpoint fields, not an immediate crash.

## Fix
Added xce_sched_core_init(&(sim.core)) as the first statement (right after memset) in every Group A/B test in test_repl_breakpoints_inspection.c that calls repl_dispatch()'s break/delete commands or the repl_break.c matcher functions -- matching the real driver's own precondition ordering.

## Verification
_Not recorded (migrated from buglog.json)._

## References
- Related: bug-1507