8d7721c775
B7A: QMI DMS time vs VNIIFTRI NTP (DMS = UTC - 0.28 s, sigma 1 ms; NITZ = DMS truncated to 1 s). B7B: a 1970 -> 2026 date -s step is harmless for the modem stack. B7C: aurora-modem probes DMS/NITZ along the start flow and steps CLOCK_REALTIME once at the first valid sample (REG registered/attached), never RTC; background SNTP check (query only) after START OK. 3/3 class-A cold boots PASS (residual +0.04/+0.36/+0.84 s), cache 14fe453a written (B7C_WRITE_VERIFIED) and verified by a normal power-on (V1, +0.26 s). Also publishes the prerequisite R2 (boot-hang / lk eMMC investigation, T4 telnet baseline that B7C builds on) and R3 (autonomous cold boot, NCM loss) material, and extends tools/publish-sanitize.py to r2/, r3/, b7/. Binary images, initramfs, busybox and raw logs stay out (see b7/*/SHA256SUMS).
551 B
551 B
B7C c6 — class-A cold boot #2: PASS
One attempt, fastboot caught first time. SBL1 16:28:13 UTC, fastboot boot rc=0, RTC at boot 5 s → class A.
Probes 1-4 INVALID (DMS 3243…7225 ms), 5 REG registered/attached VALID (NITZ 16:28:41, Δ +0.31 s) → TIME SET at uptime 24.44 s (29 → 2026-10-02 16:28:42), 6-7 VALID, no re-set.
START OK 66.0 s, Beeline home, LTE ping 3/3. SNTP check +0.356 s (best, ntp2, 56 ms RTT); verify ntp2 +0.355…+0.369 s. Clock kept.
UNSYNC kept, RTC untouched, eMMC writes 0, dmesg-errs 0, no FAIL/rollback.