https://bz.apache.org/bugzilla/show_bug.cgi?id=69592
Bug ID: 69592
Summary: mod_lua: LuaFilter + LuaScope Connection/Thread/Server
=> Process Crash / PANIC (Abort)
Product: Apache httpd-2
Version: 2.4.63
Hardware: PC
OS: Linux
Status: NEW
Severity: major
Priority: P2
Component: mod_lua
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
With LuaFilters (in or out) + LuaScope conn/thread/server (to improve perf),
apache process crashes, with PANIC (Abort).
How reproduce:
--- config test-1 (output) ---
LuaScope thread
LuaOutputFilter dummy-out "dummy.lua" filter
SetOutputFilter dummy-out
---
--- config test-2 (input) ---
LuaScope thread
LuaInputFilter dummy-in "dummy.lua" filter
SetInputFilter dummy-in
---
--- dummy.lua ---
function filter(r)
io.stderr:write("dummy lua", "\n")
return -- skip processing
end
---
Create simple file in htdocs:
> echo TEST > dummy.txt
do a concurrent GET
> ab -c 8 -t 60 -s 4 -k http://foobar/dummy.txt
Track Apache error log, and see crashes like these:
> AH00052: child pid XXXX exit signal Abort (6)
> PANIC: unprotected error in call to Lua API (attempt to index a nil value)
This can be tested with last stable docker image (today, 2.4.63):
> httpd:2.4
Thanks.
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