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).
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~ # [6nfor ip in 89.109.251.21 89.109.251.22 89.109.251.23; do ip route del $ip/32
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dev wwan0 && echo "ROUTE-DEL $ip ok"; done
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ROUTE-DEL 89.109.251.21 ok
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ROUTE-DEL 89.109.251.22 ok
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ROUTE-DEL 89.109.251.23 ok
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~ # ip route; /tmp/b7/busybox adjtimex | grep -E "time.tv_sec|status|offset"; da
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te -u; cat /proc/uptime; /etc/init.d/aurora-modem status | grep -E "controller|m
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m state|bearer|dmesg-errs|emmc"
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1.1.1.1 dev wwan0 scope link src 10.41.212.24
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10.10.22.3 dev wwan0 scope link src 10.41.212.24
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10.41.212.16/28 dev wwan0 scope link src 10.41.212.24
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77.88.8.8 dev wwan0 scope link src 10.41.212.24
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172.16.42.0/24 dev usb0 scope link src 172.16.42.1
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194.186.191.1 dev wwan0 scope link src 10.41.212.24
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-o offset: 0 us
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status: 64 (UNSYNC)
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time.tv_sec: 2477
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Thu Jan 1 00:41:17 UTC 1970
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2474.88 9817.73
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controller: BEARER_CONNECTED
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mm state: connected
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bearer 1: Status connected: yes; interface: wwan0; address: 10.41.212.24;
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emmc: writes_completed=0 sectors_written=0
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dmesg-errs: 0
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~ # timeout 5 ping -c2 -W2 -I wwan0 77.88.8.8 | tail -2; echo B7A4-END
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2 packets transmitted, 2 packets received, 0% packet loss
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round-trip min/avg/max = 58.756/115.745/172.735 ms
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B7A4-END
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~ # [6n |