Guru Meditation Error when connecting to Eduroam (WPA2-Enterprise)



  • Hi,

    I am using my LoPy for a project on my university but I am having troubles connection it to the Eduroam network.
    Every time it connects I get a Guru Mediation Error and it restarts.
    I tried to update the firmware to latest version but it made no diference.
    Any help would be welcome since I really need this to work in order to finish my projects.

    How I am connecting (my university network doesn't need certs):

    wlan.connect(ssid='eduroam', auth=(WLAN.WPA2_ENT, 'myemail', 'mypassword'), identity='myemail')
    

    The error:

    Guru Meditation Error: Core  0 panic'ed (LoadProhibited)
    . Exception was unhandled.
    Register dump:
    PC      : 0x4018674d  PS      : 0x00060a30  A0      : 0x8018160e  A1      : 0x3ffdf5d0  
    A2      : 0x3ffe3fb4  A3      : 0x00000001  A4      : 0x3fff52c8  A5      : 0x00000001  
    A6      : 0x3ffdf6a4  A7      : 0x00000001  A8      : 0x80186749  A9      : 0x3ffe3fc8  
    A10     : 0x00000000  A11     : 0x000000ff  A12     : 0x3ffe3fb4  A13     : 0x00000000  
    A14     : 0x00000002  A15     : 0x00000005  SAR     : 0x00000018  EXCCAUSE: 0x0000001c  
    EXCVADDR: 0x00000001  LBEG    : 0x40184821  LEND    : 0x40184827  LCOUNT  : 0x00000000  
    
    Backtrace: 0x4018674d:0x3ffdf5d0 0x4018160b:0x3ffdf5f0 0x40144162:0x3ffdf620 0x4014435f:0x3ffdf6d0 0x40140f5e:0x3ffdf7a0 0x40141371:0x3ffdf7e0 0x40140591:0x3ffdf860 0x4013ffee:0x3ffdf8b0 0x40140051:0x3ffdf8f0 0x4013e5b9:0x3ffdf910 0x4013dce7:0x3ffdf950 0x4013c149:0x3ffdf9b0 0x4013c4d9:0x3ffdf9f0
    
    ================= CORE DUMP START =================
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    CwAAAIBL/j9JUlFzAAAAAAAAAAAAAAAAAQAAAHxj/j8AAAAAIQAGAAsAAAAAAAAA
    AAAAAKxi/j8AAAAAAAAAAAAAAAD4Jv0/YCf9P8gn/T8AAAAAAAAAAAEAAAAAAAAA
    lllAPwAAAAAAswlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgAAAA==
    tDMIQNi0CEAwAwYAB4UOgCBi/j8ctf0/wGL+P2i1/T8AAAAAcLX9PwAAAADYtAiA
    AGL+PwEAAAD/////6FH8PwEAAAAEGfw/AAAAAAAAAAA8p/s/AAAAAAAAAAAAAAAA
    AAAAAK01CEABAAAAGNEIQDyn+z8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAABGAAAApaWlpaWlpaVQ1A2AYGL+P9hd/D/AYv4/
    AAAAAE0AAAClpaWlpaWlpf////9gYv4/tGD8P8Bi/j8AAAAAAQAAAMxd/D9wM/w/
    AAAAAPBi/j/MXfw/AAAAABBj/j8AAAAAAAAAAAAAAAAAAAAAzF38PwAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABQX/w/
    UF/8PwAAAADAYv4/ABQAADyn+z8AAAAAAAAAAAAAAABQX/w/AAAAAAoAAAD///9/
    AAAAABBj/j8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAcY/4/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAA
    ================= CORE DUMP END =================
    Rebooting...
    ets Jun  8 2016 00:22:57
    
    rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
    configsip: 0, SPIWP:0xee
    clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
    mode:DIO, clock div:1
    load:0x3fff8028,len:8
    load:0x3fff8030,len:1728
    load:0x4009fa00,len:0
    load:0x4009fa00,len:14584
    entry 0x400a059c


  • First lines of my dump.. after I removed the
    ========= CORE DUMP lines

    looks like
    EDkAABAAAABsAQAA
    WNj7P5DW+z9Q2Ps/
    sNb7P/DX+z/48WtoPFH8PzxR/D9Y2Ps/NFH8PwIAAADowfs/6MH7P1jY+z8AAAAA

    Python DIES with MemoryError as task_num is unpacked as a very huge number in espcoredump.py:579 as

    tot_len,task_num,tcbsz = struct.unpack_from(self.ESP32_COREDUMP_HDR_FMT, data)

    Which yields

    (1097548869, 1094795841, 1933721921)

    Probably a simple mistake with core dump file format



  • Hi,
    I got the same issue both with LoPy4 and with FiPy... Any news? Thanks

    Stefano



  • @asergio

    Looks like it, the firmware team have been made aware of this issue and will look into it



  • @seb

    I just tested with a LoPy with an older firmware

    >>> os.uname()
    (sysname='LoPy', nodename='LoPy', release='1.7.7.b1', version='v1.8.6-715-g5fa16c2c on 2017-07-20', machine='LoPy with ESP32', lorawan='1.0.0')
    

    and it worked...

    >>> wlan.isconnected()
    True
    
    

    I guess this is really a firmware problem.



  • Thanks for posting those decoded dumps, I have passed this onto the firmware team, they will try look into but they will need to setup a WPA2-ENT network to test it.



  • @asergio

    I did one without the machine idle

    espcoredump.py v0.1-dev
    ===============================================================
    ==================== ESP32 CORE DUMP START ====================
    
    ================== CURRENT THREAD REGISTERS ===================
    pc             0x4018674d	0x4018674d <bignum_set_unsigned_bin+49>
    lbeg           0x40184821	1075333153
    lend           0x40184827	1075333159
    lcount         0x0	0
    sar            0x18	24
    ps             0x60720	395040
    threadptr      <unavailable>
    br             <unavailable>
    scompare1      <unavailable>
    acclo          <unavailable>
    acchi          <unavailable>
    m0             <unavailable>
    m1             <unavailable>
    m2             <unavailable>
    m3             <unavailable>
    expstate       <unavailable>
    f64r_lo        <unavailable>
    f64r_hi        <unavailable>
    f64s           <unavailable>
    fcr            <unavailable>
    fsr            <unavailable>
    a0             0x4018160e	1075320334
    a1             0x3ffe1990	1073617296
    a2             0x3ffdffd0	1073610704
    a3             0x1	1
    a4             0x3ffdf448	1073607752
    a5             0x1	1
    a6             0x3ffe1a64	1073617508
    a7             0x1	1
    a8             0x80186749	-2145884343
    a9             0x3ffe3850	1073625168
    a10            0x0	0
    a11            0xff	255
    a12            0x3ffdffd0	1073610704
    a13            0x0	0
    a14            0x2	2
    a15            0x5	5
    
    ==================== CURRENT THREAD STACK =====================
    #0  0x4018674d in mp_read_unsigned_bin (c=1073607751, b=0x2 <error: Cannot access memory at address 0x2>, a=0x3ffdffd0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/wpa_supplicant/src/crypto/libtommath.h:990
    #1  bignum_set_unsigned_bin (n=0x3ffdffd0, buf=0x1 <error: Cannot access memory at address 0x1>, len=1073607752) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/wpa_supplicant/src/crypto/bignum.c:114
    #2  0x4018160e in crypto_mod_exp (base=<optimized out>, base_len=<optimized out>, power=0x4018160e <crypto_mod_exp+74> \"\\226j\\376\\315\\005\\275\\004\\255\\003e\\020\\005\\226\\252\\375\\310\\021\\255\\a\\270\\001\\245\\017\\005\\226\\352\\374\\335\\006\\315\\a\\275\\003\\255\\002e\\036\\005\\226\
    \\374\\310\321\255\\006\\270\\301\\345\\002\\005M\
    \\255\\002\\345\\376\\004\\255\\003\\245\\376\\004\\255\\ae\\376\\004\\255\\006%\\376\\004-\\004\", <incomplete sequence \\360>, power_len=1073617296, modulus=0x3ffe1a64 \"3\", modulus_len=1061285312, result=0x2 <error: Cannot access memory at address 0x2>, result_len=0x10) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/wpa_supplicant/src/crypto/crypto_internal-modexp.c:40
    #3  0x40144165 in x509_certificate_check_signature ()
    #4  0x40144362 in x509_certificate_chain_validate ()
    #5  0x40140f61 in ?? ()
    #6  0x40141374 in tlsv1_client_process_handshake ()
    #7  0x40140594 in tlsv1_client_handshake ()
    #8  0x4013fff1 in tls_connection_handshake2 ()
    #9  0x40140054 in tls_connection_handshake ()
    #10 0x4013e5bc in eap_peer_tls_process_helper ()
    #11 0x4013dcea in ?? ()
    #12 0x4013c14c in eap_sm_process_request ()
    #13 0x4013c4dc in wpa2Task ()
    
    ======================== THREADS INFO =========================
      Id   Target Id         Frame 
      15   process 14        0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffdb51c, pvBuffer=0x3ffe62c0, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      14   process 13        0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffbc1e8, pvBuffer=0x3ffbd7e0, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      13   process 12        0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffd289c, pvBuffer=0x0, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      12   process 11        0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffb46dc, pvBuffer=0x3ffb5150, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      11   process 10        0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffd3810, pvBuffer=0x0, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      10   process 9         0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffd9abc, pvBuffer=0x3ffdac60, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      9    process 8         0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffd3ddc, pvBuffer=0x0, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      8    process 7         0x40081522 in esp_crosscore_int_send_yield (core_id=1) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/esp32/./crosscore_int.c:112
      7    process 6         0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffd45a0, pvBuffer=0x3ffd55e0, xTicksToWait=100, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      6    process 5         0x4008c220 in vTaskDelay (xTicksToDelay=<optimized out>) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./tasks.c:1491
      5    process 4         0x4008c220 in vTaskDelay (xTicksToDelay=<optimized out>) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./tasks.c:1491
      4    process 3         /builds/idf/crosstool-NG/.build/src/gdb-7.10/gdb/inline-frame.c:171: internal-error: inline_frame_this_id: Assertion `!frame_id_eq (*this_id, outer_frame_id)' failed.
    A problem internal to GDB has been detected,
    further debugging may prove unreliable.
    Quit this debugging session? (y or n) [answered Y; input not from terminal]
    /builds/idf/crosstool-NG/.build/src/gdb-7.10/gdb/inline-frame.c:171: internal-error: inline_frame_this_id: Assertion `!frame_id_eq (*this_id, outer_frame_id)' failed.
    A problem internal to GDB has been detected,
    further debugging may prove unreliable.
    Create a core file of GDB? (y or n) [answered Y; input not from terminal]
    GDB exited (None / )!
    Problem occured! GDB exited, restart it.
    Reading symbols from LoPy-1.17.3.b1-application.elf...done.
    [New <main task>]
    [New process 1]
    [New process 2]
    [New process 3]
    [New process 4]
    [New process 5]
    [New process 6]
    [New process 7]
    [New process 8]
    [New process 9]
    [New process 10]
    [New process 11]
    [New process 12]
    [New process 13]
    [New process 14]
    [Current thread is 1 (<main task>)]
    
    ======================= ALL MEMORY REGIONS ========================
    Name   Address   Size   Attrs
    .rtc.text 0x400c0000 0x6c R XA
    .rtc.data 0x50000000 0x10 RW A
    .iram0.vectors 0x40080000 0x400 R XA
    .iram0.text 0x40080400 0x1b27c R XA
    .dram0.data 0x3ffc0000 0x4418 RW A
    .flash.rodata 0x3f400020 0x2bbc4 RW A
    .flash.text 0x400d0018 0xeb5f8 R XA
    .coredump.tasks 0x3ffde1d8 0x16c RW 
    .coredump.tasks 0x3ffe18d0 0x588 RW 
    .coredump.tasks 0x3ffd6560 0x16c RW 
    .coredump.tasks 0x3ffd63e0 0x178 RW 
    .coredump.tasks 0x3ffd5fec 0x16c RW 
    .coredump.tasks 0x3ffd5e70 0x174 RW 
    .coredump.tasks 0x3ffd71cc 0x16c RW 
    .coredump.tasks 0x3ffd7070 0x154 RW 
    .coredump.tasks 0x3ffc536c 0x16c RW 
    .coredump.tasks 0x3ffd9760 0x354 RW 
    .coredump.tasks 0x3ffd5958 0x16c RW 
    .coredump.tasks 0x3ffdb3b0 0x164 RW 
    .coredump.tasks 0x3ffd5678 0x16c RW 
    .coredump.tasks 0x3ffd5490 0x1e0 RW 
    .coredump.tasks 0x3ffb7458 0x16c RW 
    .coredump.tasks 0x3ffb7240 0x210 RW 
    .coredump.tasks 0x3ffd4238 0x16c RW 
    .coredump.tasks 0x3ffd40b0 0x180 RW 
    .coredump.tasks 0x3ffd57e8 0x16c RW 
    .coredump.tasks 0x3ffdab60 0x1b0 RW 
    .coredump.tasks 0x3ffd3c6c 0x16c RW 
    .coredump.tasks 0x3ffd3ae0 0x184 RW 
    .coredump.tasks 0x3ffb51f0 0x16c RW 
    .coredump.tasks 0x3ffb5050 0x198 RW 
    .coredump.tasks 0x3ffd34f8 0x16c RW 
    .coredump.tasks 0x3ffd3370 0x180 RW 
    .coredump.tasks 0x3ffbd884 0x16c RW 
    .coredump.tasks 0x3ffbd6d0 0x1ac RW 
    .coredump.tasks 0x3ffe4a10 0x16c RW 
    .coredump.tasks 0x3ffe6160 0x21c RW 
    
    ===================== ESP32 CORE DUMP END =====================
    ===============================================================
    Done!


  • @seb said in Guru Meditation Error when connecting to Eduroam (WPA2-Enterprise):

    espcoredump.py

    Thanks, this is what I got, any idea of what could be the problem?

    ===============================================================
    ==================== ESP32 CORE DUMP START ====================
    
    ================== CURRENT THREAD REGISTERS ===================
    pc             0x400e2552	0x400e2552 <machine_idle+6>
    lbeg           0x0	0
    lend           0x0	0
    lcount         0x0	0
    sar            0x0	0
    ps             0x60a20	395808
    threadptr      <unavailable>
    br             <unavailable>
    scompare1      <unavailable>
    acclo          <unavailable>
    acchi          <unavailable>
    m0             <unavailable>
    m1             <unavailable>
    m2             <unavailable>
    m3             <unavailable>
    expstate       <unavailable>
    f64r_lo        <unavailable>
    f64r_hi        <unavailable>
    f64s           <unavailable>
    fcr            <unavailable>
    fsr            <unavailable>
    a0             0x400f1358	1074729816
    a1             0x3ffd96b0	1073583792
    a2             0x3f402adc	1061169884
    a3             0x0	0
    a4             0x0	0
    a5             0x0	0
    a6             0x0	0
    a7             0x0	0
    a8             0x0	0
    a9             0x0	0
    a10            0x0	0
    a11            0x0	0
    a12            0x0	0
    a13            0x0	0
    a14            0x0	0
    a15            0x0	0
    
    ==================== CURRENT THREAD STACK =====================
    #0  machine_idle () at mods/modmachine.c:180
    #1  0x400f1358 in mp_call_function_n_kw (fun_in=0x3f402adc <machine_idle_obj>, n_args=0, n_kw=1074729816, args=0x3ffd96b0) at ../py/runtime.c:574
    Backtrace stopped: Cannot access memory at address 0x40000002
    
    ======================== THREADS INFO =========================
      Id   Target Id         Frame 
      15   process 14        0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffdb51c, pvBuffer=0x3ffe62c0, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      14   process 13        0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffbc1e8, pvBuffer=0x3ffbd7e0, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      13   process 12        0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffd289c, pvBuffer=0x0, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      12   process 11        0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffb46dc, pvBuffer=0x3ffb5150, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      11   process 10        0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffd9abc, pvBuffer=0x3ffdac60, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      10   process 9         0x40081522 in esp_crosscore_int_send_yield (core_id=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/esp32/./crosscore_int.c:112
      9    process 8         0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffd3ddc, pvBuffer=0x0, xTicksToWait=4294967295, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      8    process 7         0x40081522 in esp_crosscore_int_send_yield (core_id=1) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/esp32/./crosscore_int.c:112
      7    process 6         0x4008b4d8 in xQueueGenericReceive (xQueue=0x3ffd45a0, pvBuffer=0x3ffd55e0, xTicksToWait=100, xJustPeeking=0) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./queue.c:1591
      6    process 5         0x4008c220 in vTaskDelay (xTicksToDelay=<optimized out>) at /Users/danicampora/Code/Espressif/IDF/esp-idf-20180112/components/freertos/./tasks.c:1491
      5    process 4         /builds/idf/crosstool-NG/.build/src/gdb-7.10/gdb/inline-frame.c:171: internal-error: inline_frame_this_id: Assertion `!frame_id_eq (*this_id, outer_frame_id)' failed.
    A problem internal to GDB has been detected,
    further debugging may prove unreliable.
    Quit this debugging session? (y or n) [answered Y; input not from terminal]
    /builds/idf/crosstool-NG/.build/src/gdb-7.10/gdb/inline-frame.c:171: internal-error: inline_frame_this_id: Assertion `!frame_id_eq (*this_id, outer_frame_id)' failed.
    A problem internal to GDB has been detected,
    further debugging may prove unreliable.
    Create a core file of GDB? (y or n) [answered Y; input not from terminal]
    GDB exited (None / )!
    Problem occured! GDB exited, restart it.
    Reading symbols from LoPy-1.17.3.b1-application.elf...done.
    [New <main task>]
    [New process 1]
    [New process 2]
    [New process 3]
    [New process 4]
    [New process 5]
    [New process 6]
    [New process 7]
    [New process 8]
    [New process 9]
    [New process 10]
    [New process 11]
    [New process 12]
    [New process 13]
    [New process 14]
    [Current thread is 1 (<main task>)]
    
    ======================= ALL MEMORY REGIONS ========================
    Name   Address   Size   Attrs
    .rtc.text 0x400c0000 0x6c R XA
    .rtc.data 0x50000000 0x10 RW A
    .iram0.vectors 0x40080000 0x400 R XA
    .iram0.text 0x40080400 0x1b27c R XA
    .dram0.data 0x3ffc0000 0x4418 RW A
    .flash.rodata 0x3f400020 0x2bbc4 RW A
    .flash.text 0x400d0018 0xeb5f8 R XA
    .coredump.tasks 0x3ffc536c 0x16c RW 
    .coredump.tasks 0x3ffd9670 0x444 RW 
    .coredump.tasks 0x3ffdfaa0 0x16c RW 
    .coredump.tasks 0x3ffdf510 0x588 RW 
    .coredump.tasks 0x3ffd5fec 0x16c RW 
    .coredump.tasks 0x3ffd5e70 0x174 RW 
    .coredump.tasks 0x3ffd6560 0x16c RW 
    .coredump.tasks 0x3ffd63e0 0x178 RW 
    .coredump.tasks 0x3ffd71cc 0x16c RW 
    .coredump.tasks 0x3ffd7070 0x154 RW 
    .coredump.tasks 0x3ffd5958 0x16c RW 
    .coredump.tasks 0x3ffdb3b0 0x164 RW 
    .coredump.tasks 0x3ffd5678 0x16c RW 
    .coredump.tasks 0x3ffd5490 0x1e0 RW 
    .coredump.tasks 0x3ffb7458 0x16c RW 
    .coredump.tasks 0x3ffb7240 0x210 RW 
    .coredump.tasks 0x3ffd4238 0x16c RW 
    .coredump.tasks 0x3ffd40b0 0x180 RW 
    .coredump.tasks 0x3ffd3c6c 0x16c RW 
    .coredump.tasks 0x3ffd3ac0 0x1a4 RW 
    .coredump.tasks 0x3ffd57e8 0x16c RW 
    .coredump.tasks 0x3ffdab60 0x1b0 RW 
    .coredump.tasks 0x3ffb51f0 0x16c RW 
    .coredump.tasks 0x3ffb5050 0x198 RW 
    .coredump.tasks 0x3ffd34f8 0x16c RW 
    .coredump.tasks 0x3ffd3370 0x180 RW 
    .coredump.tasks 0x3ffbd884 0x16c RW 
    .coredump.tasks 0x3ffbd6d0 0x1ac RW 
    .coredump.tasks 0x3ffe4a10 0x16c RW 
    .coredump.tasks 0x3ffe6160 0x21c RW 
    
    ===================== ESP32 CORE DUMP END =====================
    ===============================================================
    Done!


  • @asergio

    The process for decoding the dumps is quite cumbersome but here goes:

    Requirements:

    1. The core dump as a text file. You want the text between (but NOT including)
      ================= CORE DUMP START ================= and ================= CORE DUMP END =================
    2. Setup the pycom version of the ESP-IDF from here: https://github.com/pycom/pycom-esp-idf
    3. A copy of the exact firmware elf file used on your device. If you are using pycom released firmware these can be found here: https://github.com/pycom/pycom-micropython-sigfox/releases

    Steps:

    1. Open a terminal and navigate to {ESP-IDF}/components/espcoredump/
    2. Run the following command:
    $ ./espcoredump.py info_corefile -t b64 -c core_dump.txt firmware.elf
    

    This will output the decoded core dump which should give clues as to where the error occurs.



  • Any idea of how I can at least debug this? The crash dumps doesn't help much.



  • @seb yep

    (sysname='LoPy', nodename='LoPy', release='1.17.3.b1', version='v1.8.6-849-83e2f7f on 2018-03-19', machine='LoPy with ESP32', lorawan='1.0.2')


  • Do you have the latest firmware?


 

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