sserver: accidental deadlock when release StratumSession from consume thread about btcpool-abandoned HOT 5 CLOSED

libevent 2.1.9-beta was released. It's recommended to use this version.
https://github.com/libevent/libevent/releases/tag/release-2.1.9-beta

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libevent/libevent#512 (comment)

azat commented on 24 May 2017

Indeed it looks like issues mentioned by ploxiln
Can you please verify your program with latest libevent (compiled from git, since that patches was merged only recently and there was not release since that time)?

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A potential fix is to build libevent from its master branch:

git clone https://github.com/libevent/libevent.git
cd libevent
./autogen.sh
./configure --disable-shared
make && make install

Then remove your libevent-dev package and cmake .. again. (It may fail and need to clean up the cmake cache.)

No deadlock problems have been encountered since our build switched to the master branch of libevent.

Notice: the lastest release of libevent release-2.1.8-stable has been confirmed to have this problem. Do not use it and previous releases.

I am very sorry that libevent has no new release in nearly two years.

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The issue was temporarily closed due to no recent feedback.

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@YihaoPeng
Hi mate
Do you have any ideas how to fix if?

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