seedds 3ab0ea16cd Host: crash report never waits forever on stderr; Engage demo crash fixed ...

- crash.c: before printing a crash or time-limit report, the handler
  tries the stderr lock for 1 s. If another thread holds it, it writes
  one line (signal, pc / lr as module offsets) with write() and exits,
  instead of hanging with the process and leaving an empty log. This
  is for the intermittent early stalls, where even the SIGALRM report
  never appeared.
- Engage's idle attract-demo crash (about 220 s) was the same alias
  address-space shortage as the battle crash: the particle index
  buffers got no mapping past 2 MB. With the node-area cut (fe9bab9) an
  850 s idle run is clean, with no corrupted texture objects; with the
  old SDK the same run dies at 159 s in Unity's heap allocator.
- Docs: the 04-graphics entry is marked fixed with the cause; 03-bringup
  and the README Engage row updated. Mario regression t65 clean; the
  iOS project compiles.

2026-10-15 02:05:23 +08:00

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Host: crash report never waits forever on stderr; Engage demo crash fixed

2026-10-15 02:05:23 +08:00