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netutils/mdns: raise responder stack size default to 8KiB #3630

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netutils/mdns: raise responder stack size default to 8KiB #3630

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12 changes: 8 additions & 4 deletions netutils/mdns/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -51,11 +51,15 @@ config NETUTILS_MDNS_PRIORITY

config NETUTILS_MDNS_STACKSIZE
int "mDNS stack size"
default DEFAULT_TASK_STACKSIZE
default 8192
---help---
The default (4KiB) is adequate for simple networks but this will
most likely need to be increased if there are many network devices
attached that could send queries.
Stack size for the mDNS responder task. The bundled mjansson
responder uses a fairly deep stack (record parsing with name
decompression plus the send/receive buffers), so the previous
default of DEFAULT_TASK_STACKSIZE overflows and hardfaults on
startup on targets where that resolves to a small value (e.g.
2KiB). 8KiB is adequate for typical networks; increase it further
if many devices on the network send queries.

config NETUTILS_MDNS_VERBOSE
bool "Enable verbose printf output from built-in mdns demo"
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