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).
12 lines
919 B
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12 lines
919 B
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16:55:25 uartlog -> logs/uart/b7cV1-20261002-195525.log; waiting for a new SBL1 + lk 'Trying to boot'
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17:00:03 lk: 20:00:02.469 [300] Trying to boot 'b7c'
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17:00:03 SBL1 starts: 1
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b7/b7c/out/aurora-mm1-b7c.img: OK
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17:00:13.506 collect-only mode, UART logs/uart/b7cV1-20261002-195525.log
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17:00:13.510 NCM ping 172.16.42.1 ok
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17:00:13.513 PM8916 RTC at Linux boot = 3 s -> class A (A = PMIC POR; <40 s allows for the lk fastboot wait)
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17:01:41.595 controller end: [83.23] === START OK in 73.9s (wwan0 10.41.168.235/29, routes: 10.10.22.3 194.186.191.1 77.88.8.8 1.1.1.1 )
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17:01:49.614 sntp: [98.64] SNTP check ( 89.109.251.21 89.109.251.22 89.109.251.23): 12 replies; best offset delay server: +0.262256 0.050961 89.109.251.23: (offset > 0 = clock behind)
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17:02:20.626 snapshot: 2 end markers
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96960abe4192a9cddbb8a4dc2ee38476948af740757ba3b03e666c216fb9f89f logs/b7/b7c/cV1/run-aurora-modem.tar
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17:02:25.681 B7C cV1 END
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