Stack dump from dns_check_entry

[lonerzzz]

Basic Info

Hardware

Hardware: ESP-12F
Core Version: 2.3.0

Description

I am routinely, and infrequently, getting a core dump with DNS lookup that is happening in the background processing when I attempt to resolve the DNS address:
0x40231e78: dns_check_entry at /Users/igrokhotkov/espressif/arduino/tools/sdk/lwip/src/core/dns.c line 690
0x4023202c: dns_enqueue at /Users/igrokhotkov/espressif/arduino/tools/sdk/lwip/src/core/dns.c line 917
: (inlined by) dns_gethostbyname at /Users/igrokhotkov/espressif/arduino/tools/sdk/lwip/src/core/dns.c line 977

This causes the system to reset.

Settings in IDE

Module: Generic ESP8266 Module
Flash Size: 4MB/1MB
CPU Frequency: 80Mhz
Flash Mode: qio
Flash Frequency: 40Mhz
Upload Using: SERIAL
Reset Method: ck

Sketch

Cannot include

Debug Messages

Only the stack trace

[devyte]

@lonerzzz Without a sketch to look through, this could be anything.
Is the issue still present in

• latest git
• PR Update to SDK 2.1.0 #3215
• PR lwip2: lighter implementation #3362
  ?

[devyte]

Closing due to lack of feedback and age.