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new be43888aa netutils/mdns: raise responder stack size default to 8KiB
be43888aa is described below
commit be43888aa53d646e9919c08c57a50184be35d016
Author: Ricard Rosson <[email protected]>
AuthorDate: Sat Jul 11 06:17:53 2026 +0100
netutils/mdns: raise responder stack size default to 8KiB
CONFIG_NETUTILS_MDNS_STACKSIZE defaulted to DEFAULT_TASK_STACKSIZE,
which resolves to as little as 2KiB on some targets. The bundled
mjansson responder uses a deeper stack than that (DNS record parsing
with name decompression, plus the send/receive buffers) and overflows
on startup, taking the board down with a hardfault before it answers a
single query.
Default to 8KiB, the value that reliably runs the responder, and
correct the help text, which previously claimed a 4KiB default that did
not match DEFAULT_TASK_STACKSIZE.
Assisted-by: Claude (Anthropic Claude Code)
Signed-off-by: Ricard Rosson <[email protected]>
---
netutils/mdns/Kconfig | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/netutils/mdns/Kconfig b/netutils/mdns/Kconfig
index bd2003bdb..58f25acd2 100644
--- a/netutils/mdns/Kconfig
+++ b/netutils/mdns/Kconfig
@@ -51,11 +51,11 @@ 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. 8KiB is adequate for
+ typical networks; increase it if many network devices send
+ queries.
config NETUTILS_MDNS_VERBOSE
bool "Enable verbose printf output from built-in mdns demo"
