I've been running a v3.1 module in my Cadillac for a few weeks now and recently realized that it crashes frequently. I see this on the status page: Last boot was 12879 second(s) ago Time at boot: 2019-06-26 11:31:51 PDT This is reset #10 since last power cycle Detected boot reason: Crash (8/14) Crash counters: 8 total, 0 early Last crash: abort() was called on core 0 Backtrace: 0x40096068 0x40096263 0x40115aa7 0x40232e95 0x4023312d 0x4023315d 0x40229d52 0x4022a780 0x40226576 0x402276d6 0x40227ad1 Version: 3.2.002-89-g0207c45e-dirty/ota_0/main (build idf v3.1-dev-2835-g151269458 Jun 22 2019 14:12:19) Firmware: 3.2.002-89-g0207c45e-dirty/ota_0/main (build idf v3.1-dev-2835-g151269458 Jun 22 2019 14:12:19) Running partition: ota_0 Boot partition: ota_0 Factory image: 3.2.002 OTA_O image: 3.2.002-89-g0207c45e-dirty OTA_1 image: 3.2.002-89-g0207c45e-dirty Which translates to: + xtensa-esp32-elf-addr2line -e build/ovms3.elf 0x40096068 0x40096263 0x40115aa7 0x40232e95 0x4023312d 0x4023315d 0x40229d52 0x4022a780 0x40226576 0x402276d6 0x40227ad1 /home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/esp32/panic.c:670 /home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/esp32/panic.c:670 /home/jeroen/esp8266/esp32/newlib_xtensa-2.2.0-bin/newlib_xtensa-2.2.0/xtensa-esp32-elf/newlib/libc/stdlib/../../../.././newlib/libc/stdlib/assert.c:63 (discriminator 8) /home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/lwip/core/ipv4/ip4.c:846 (discriminator 1) /home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/lwip/core/ipv4/ip4.c:810 /home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/lwip/core/ipv4/ip4.c:787 /home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/lwip/core/tcp_out.c:1272 (discriminator 4) /home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/lwip/core/tcp_out.c:1073 /home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/lwip/api/api_msg.c:1875 (discriminator 6) /home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/lwip/api/api_msg.c:1875 (discriminator 6) /home/ice/u0/leres/esp/openvehicles-xtensa-esp32-elf/components/lwip/api/tcpip.c:474 I was beginning to think that my battery tender maintenance charger was the cause but I disconnected it a few days ago. Is this psram cache issue related or something else? I haven't written much code yet and it doesn't do a lot, especially when the car is off. Is there an easy way to poll the module for crash related info? I never understood what the boot reason numbers were: Detected boot reason: Crash (8/14) but I see now that there is a number for each core and are defined in the esp-idf/components/esp32/include/rom/rtc.h: typedef enum { NO_MEAN = 0, POWERON_RESET = 1, /**<1, Vbat power on reset*/ SW_RESET = 3, /**<3, Software reset digital core*/ OWDT_RESET = 4, /**<4, Legacy watch dog reset digital core*/ DEEPSLEEP_RESET = 5, /**<3, Deep Sleep reset digital core*/ SDIO_RESET = 6, /**<6, Reset by SLC module, reset digital core*/ TG0WDT_SYS_RESET = 7, /**<7, Timer Group0 Watch dog reset digital core*/ TG1WDT_SYS_RESET = 8, /**<8, Timer Group1 Watch dog reset digital core*/ RTCWDT_SYS_RESET = 9, /**<9, RTC Watch dog Reset digital core*/ INTRUSION_RESET = 10, /**<10, Instrusion tested to reset CPU*/ TGWDT_CPU_RESET = 11, /**<11, Time Group reset CPU*/ SW_CPU_RESET = 12, /**<12, Software reset CPU*/ RTCWDT_CPU_RESET = 13, /**<13, RTC Watch dog Reset CPU*/ EXT_CPU_RESET = 14, /**<14, for APP CPU, reseted by PRO CPU*/ RTCWDT_BROWN_OUT_RESET = 15, /**<15, Reset when the vdd voltage is not stable*/ RTCWDT_RTC_RESET = 16 /**<16, RTC Watch dog reset digital core and rtc module*/ } RESET_REASON; so my most recent reset was due to 8: "Timer Group1 Watch dog reset digital core" (and the 14 is probably cpu0 resetting cpu1 when the watch dog hit?) I am using Ticker10 based on Ticker1 code I saw in vehicle_nissanleaf.cpp. But I get crashes even if I ifdef out that code out. I've also attached a screen grab from my hologram.io account, I think it's showing just how frequently the crashes are. I could also eliminate my FreeBSD xtensa toolchain by doing a build under ubuntu, would that be worthwhile? Craig
