Hi all,

So far we found 2 issues in the LuaJIT project :

• light userdata problem on 48-bit VA kernel.
• Currently, Zhongwei is looking into it. The plan is to get a workable solution and push to upstream to discuss the problem.
• wrk doesn't work with LuaJIT.(Unknown cause, reproduced on SoftIron)
• Currently, we don't have bandwidth to look into that.

So for the wrk related issue, it would be very appreciated if anyone can take a look.

Steps to reproduce the problem :

• Build and install wrk

echo "===== Install libssl-dev which is needed by wrk"

apt-get -y install libssl-dev

echo "===== Download, build and install LuaJIT-2.1 which is also needed by wrk"

wget -O /root/LuaJIT-2.1.zip https://github.com/LuaJIT/LuaJIT/archive/v2.1.zip  # having problems with both on upstream and linaro branches

unzip /root/LuaJIT-2.1.zip -d /root/

make PREFIX=/usr install -C /root/LuaJIT-2.1

ln -sf luajit-2.1.0-beta2 /usr/bin/luajit

echo "===== Download wrk"

wget -O /root/wrk-4.0.2.zip https://github.com/wg/wrk/archive/4.0.2.zip

unzip /root/wrk-4.0.2.zip -d /root/

echo "===== Patch wrk to use luajit-2.1 rather than luajit-2.0"

sed -i 's/luajit-2.0/luajit-2.1/g' /root/wrk-4.0.2/src/*

echo "===== Build and install wrk"

make WITH_LUAJIT=/usr WITH_OPENSSL=/usr -C /root/wrk-4.0.2

cp /root/wrk-4.0.2/wrk /usr/bin/

• run

wrk -d 1s -c 1 http://www.google.com

PANIC: unprotected error in call to Lua API

Regards,

Zheng

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