[Ovmsdev] Attempting to ssh in too soon after a reboot causes an abort() from esp_sha_read_digest_state()

[Craig Leres]

[third attempt, apparently my opendkim sendmail milter was borked and 
needed to be restarted...]

I updated to 3.3.003-518-gb6c10a59 a few days ago and noticed if I'm too 
impatient trying to ssh into the module after rebooting, it crashes. I 
suspect this is easy to reproduce.

		Craig

===============================================================

OVMS# boot
Last boot was 501 second(s) ago
Time at boot: 2023-06-21 19:49:18 PDT
   This is reset #8 since last power cycle
   Detected boot reason: EarlyCrash (12/12)
   Reset reason: Exception/panic (4)
   Crash counters: 1 total, 1 early

Last crash: abort() was called on core 1
   Current task on core 0: IDLE0, 524 stack bytes free
   Current task on core 1: OVMS NetMan, 1208 stack bytes free
   Backtrace:
   0x400891b7 0x40089451 0x40268a11 0x40244aea 0x4023e892 0x40240287 
0x4024f6bb 0x40240556 0x40240581 0x4012aaa0 0x4012c150 0x4012d89d 
0x4012ddc3 0x4012a2aa 0x4011e2eb 0x4011e389
   Version: 3.3.003-518-gb6c10a59-dirty/ota_1/main (build idf 
v3.3.4-849-g6e214dc33 Jun 20 2023 21:30:05)

   Hardware: OVMS WIFI BLE BT cores=2 rev=ESP32/3; MODEM SIM7600

===============================================================

ice 104 % git describe
3.3.003-518-gb6c10a59
ice 105 % cat backtrace.sh
#!/bin/sh
PATH=/usr/local/xtensa-esp32-elf/bin:${PATH}
export PATH
cd ${HOME}/src/OVMS.V3 || exit 1
dn=`/bin/pwd`
(set -x ; xtensa-esp32-elf-addr2line -e build/ovms3.elf $*) | sed -e 
s,^${dn}/,,
ice 106 % !./
./backtrace.sh 0x400891b7 0x40089451 0x40268a11 0x40244aea 0x4023e892 
0x40240287 0x4024f6bb 0x40240556 0x40240581 0x4012aaa0 0x4012c150 
0x4012d89d 0x4012ddc3 0x4012a2aa 0x4011e2eb 0x4011e389
+ xtensa-esp32-elf-addr2line -e build/ovms3.elf 0x400891b7 0x40089451 
0x40268a11 0x40244aea 0x4023e892 0x40240287 0x4024f6bb 0x40240556 
0x40240581 0x4012aaa0 0x4012c150 0x4012d89d 0x4012ddc3 0x4012a2aa 
0x4011e2eb 0x4011e389
/home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/esp32/panic.c:736
/home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/esp32/panic.c:736
/home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/esp32/hwcrypto/sha.c:272
/home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/mbedtls/port/esp_sha256.c:349
/home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/mbedtls/mbedtls/library/ssl_tls.c:7649
/home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/mbedtls/mbedtls/library/ssl_tls.c:7649
/home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/mbedtls/mbedtls/library/ssl_cli.c:3894
/home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/mbedtls/mbedtls/library/ssl_tls.c:7649
/home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/mbedtls/mbedtls/library/ssl_tls.c:7649
components/mongoose/mongoose/mongoose.c:1701
components/mongoose/mongoose/mongoose.c:1701
components/mongoose/mongoose/mongoose.c:1701
components/mongoose/mongoose/mongoose.c:1701
components/mongoose/mongoose/mongoose.c:1701
main/ovms_netmanager.cpp:1198
main/ovms_netmanager.cpp:1198