[Ovmsdev] Crash (Illegal Instruction)

Greg D. gregd2350 at gmail.com
Mon Feb 26 05:06:05 HKT 2018

Hi folks,

This is different... 

I've been playing with the web server, and after closing my browser
window, turned the wifi back to client mode.  Crash and reboot.  Log
level was set to Info at the time (see next email for more on that...),
and thought it was a stack issue, but rather it appears to have hit an
illegal instruction.  So, perhaps a stack corruption?  I don't recall if
the modem was on or not.

Only happened the one time, but posting here in case someone else sees it.


OVMS > wifi mode client gregnet
Starting WIFI as a client to gregnet...
I (3940180) ovms-mdns: Stopping MDNS service
I (3940190) ovms-server-v2: Network is reconfigured, so disconnect
network connection
E (3940190) ovms-server-v2: Status: Error: Disconnected from OVMS Server V2
I (3940190) wifi: flush txq
I (3940190) wifi: stop sw txq
I (3940190) wifi: lmac stop hw txq
I (3940190) wifi: Deinit lldesc rx mblock:4
I (3940190) wifi: wifi firmware version: ebd3e5d
I (3940190) wifi: config NVS flash: enabled
I (3940190) wifi: config nano formating: disabled
I (3940210) wifi: Init dynamic tx buffer num: 16
I (3940210) wifi: Init data frame dynamic rx buffer num: 16
I (3940210) wifi: Init management frame dynamic rx buffer num: 16
I (3940210) wifi: wifi driver task: 3ffee104, prio:23, stack:4096
I (3940210) wifi: Init static rx buffer num: 4
I (3940210) wifi: Init dynamic rx buffer num: 16
I (3940210) wifi: wifi power manager task: 0x3ffe6328 prio: 21 stack: 2560
I (3940220) wifi: mode : sta (30:ae:a4:37:1b:64)
I (3940220) esp32wifi: AP stopped
I (3940440) webserver: Stopping Web Server
I (3940440) webserver: Stopping Web Server
I (3940440) telnet: Stopping Telnet Server
I (3940440) ssh: Stopping SSH Server
W (3940450) ovms-server-v2: Connection failedGuru Meditation Error:
Core  1 panic'ed (IllegalInstruction)
. Exception was unhandled.
Core 1 register dump:
PC      : 0x7ec000e6  PS      : 0x00060330  A0      : 0x800e555b 
A1      : 0x3ffec880 
A2      : 0x3ffb3ce4  A3      : 0x00000000  A4      : 0x00000000 
A5      : 0x3ffc7724 
A6      : 0x3ffc7724  A7      : 0x3ffec830  A8      : 0x800f45e5 
A9      : 0x3ffec860 
A10     : 0x3ffdfc84  A11     : 0x00000000  A12     : 0x00000002 
A13     : 0x00000000 
A14     : 0x00000001  A15     : 0x706f7473  SAR     : 0x00000004 
EXCCAUSE: 0x00000000 
EXCVADDR: 0x00000000  LBEG    : 0x4000c46c  LEND    : 0x4000c477 
LCOUNT  : 0x00000000 

Backtrace: 0x7ec000e6:0x3ffec880 0x400e5558:0x3ffec8a0 0x400e5569:0x3ffec8f0
0x400e5558: OvmsNetManager::MongooseTask() at

0x400e5569: MongooseRawTask(void*) at


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