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I've noted this on the slog gitter, but raising an issue here to track the problem.
If you log (using error!, info!, warn! or debug!) when implementing Debug or Display, then when you log the structure (with info!(logger, "Logging: {:?}", struct); ) then slog may deadlock.
#5 _$LT$std..sync..mutex..Mutex$LT$D$GT$$u20$as$u20$slog..Drain$GT$::log::h1a8c2cc72bb29644 (self=0x564d8943dcc0, record=0x7ff4454ce598, logger_values=0x564d8943de70)
at /opt/rust/registry/src/crates-27bb2a0041c1489d/slog-2.5.2/src/lib.rs:2035
#6 0x0000564d86e3eed5 in _$LT$slog..Fuse$LT$D$GT$$u20$as$u20$slog..Drain$GT$::log::he38f0b0d96904e9b (self=0x80, record=0x0, logger_values=0x7ff44769610d <__lll_lock_wait+29>)
at /opt/rust/registry/src/crates-27bb2a0041c1489d/slog-2.5.2/src/lib.rs:1912
which attempts to grab the lock and:
#24 _$LT$slog_json..SerdeSerializer$LT$S$GT$$u20$as$u20$slog..Serializer$GT$::emit_arguments::_$u7b$$u7b$closure$u7d$$u7d$::h52bb2c0438e0f6aa (buf=0x7ff4454d14f0)
at /opt/rust/registry/src/crates-27bb2a0041c1489d/slog-json-2.3.0/lib.rs:147
where slog-json calls into a user specified Debug function.
The text was updated successfully, but these errors were encountered:
I've noted this on the slog gitter, but raising an issue here to track the problem.
If you log (using
error!
,info!
,warn!
ordebug!
) when implementing Debug or Display, then when you log the structure (withinfo!(logger, "Logging: {:?}", struct);
) then slog may deadlock.There's a full stack at: https://gist.github.com/richardwhiuk/c53a19c4b92d6e33dab17c615f1b3001
but the key parts are:
which attempts to grab the lock and:
where
slog-json
calls into a user specified Debug function.The text was updated successfully, but these errors were encountered: