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).
7 lines
851 B
Text
7 lines
851 B
Text
R3A autonomous cold boot - 2026-10-02
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Wiring: CH340 TX -> modem RX DISCONNECTED (user-checked); modem TX -> CH340 RX connected (passive log); GND connected.
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Host prep (480s only): old logger PID 31009 (r2t4a) killed by PID; new uartlog PID 15262 -> logs/uart/r3a-20261002-115402.{log,raw};
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passive ping observer PID 15263 (host-ping-observer.sh, ping 172.16.42.1 ~3 s) -> r3a-host-ping.txt. NM aurora-ncm autoconnect=yes.
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Power: user-reported off 11:54 (USB + battery), on 11:56 battery -> USB. Host confirms modem absent from lsusb at 11:54:21 and no host_if from 11:54:02.
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UART: no board output before 11:56:14 (SBL1 Start) -> off-time >= ~132 s by host observer, ~2 min by user times (>= 90 s required).
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No UART input, no fastboot, no host networking changes, no telnet until START OK (11:57:31.5). Telnet snapshot was read-only (r3a-snap.cmds).
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