Memleak in AsyncHttpServer with arc/orc

[ba0f3]

Im stress testing AsyncHttpServer with orc/arc, the memory keep growing till program get killed due to out of memory. Tested on 1.2.8, 1.4.0 and dev branch

Example

import asynchttpserver, asyncdispatch

proc cb(req: Request) {.async.} =
  await req.respond(Http200, "Hello World")

var server = newAsyncHttpServer()
waitFor server.serve(Port(8080), cb)

# compile
nim c -r -d:release --gc:orc test.nim
# stresstest with `wrk
wrk -t 5 -c 1k  http://127.0.0.1:8080

[disruptek]

Can you give it a shot on the tonightly?

[Araq]

Tested programs like these for months now, works for me. Which OS are you on?

[ba0f3]

I'm using Linux, a debian based distro

[ba0f3]

here is the video how it happens on my computer: video

# nim -v
Nim Compiler Version 1.5.1 [Linux: amd64]
Compiled at 2020-11-27
Copyright (c) 2006-2020 by Andreas Rumpf

git hash: 86662109ecfaec9430e4b98043c479202094f33a
active boot switches: -d:release

[Araq]

Can reproduce now. Strange but ok.

[Araq]

Note: Windows is not affected, must be selector seq callback handling once again.