hello world Mummy web server crashes on devel about nim

[Araq]

No, that's great news! Makes it much easier to fix.

[hamidb80]

I'm really sorry for that,

[Araq]

Works for me. Does it start to work with -d:useMalloc for you?

[hamidb80]

Does it start to work with -d:useMalloc for you?

Yes, no problem with -d:useMalloc

[Araq]

Should be fixed by #23758

If not, please reopen.

[hamidb80]

nope, same

nim r -f .\play.nim

output

CC: play.nim
Hint:  [Link]
Hint: mm: orc; threads: on; opt: none (DEBUG BUILD, `-d:release` generates faster code)
68866 lines; 12.628s; 114.539MiB peakmem; proj: C:\Users\HamidB80\Documents\programming\Enterprise_Computing\play.nim; out: C:\Users\HamidB80\nimcache\play_d\play_91241B8910B9117BF80A2135A8BC4658211A04CC.exe [SuccessX]
Hint: C:\Users\HamidB80\nimcache\play_d\play_91241B8910B9117BF80A2135A8BC4658211A04CC.exe [Exec]
Serving on http://localhost:6001/
Traceback (most recent call last)
C:\Users\HamidB80\Documents\programming\Enterprise_Computing\play.nim(16) play
C:\Users\HamidB80\.nimble\pkgs2\mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6\mummy.nim(1441) serve
C:\Users\HamidB80\.nimble\pkgs2\mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6\mummy.nim(1345) loopForever
C:\Users\HamidB80\.nimble\pkgs2\mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6\mummy.nim(1067) afterRecv
C:\Users\HamidB80\.choosenim\toolchains\nim-#devel\lib\std\envvars.nim(217) afterRecvHttp
SIGSEGV: Illegal storage access. (Attempt to read from nil?)
Error: execution of an external program failed: 'C:\Users\HamidB80\nimcache\play_d\play_91241B8910B9117BF80A2135A8BC4658211A04CC.exe'      

Nim Version

PS C:\Users\HamidB80\Documents\programming\Enterprise_Computing> nim -v
Nim Compiler Version 2.1.1 [Windows: amd64]
Compiled at 2024-06-26
Copyright (c) 2006-2024 by Andreas Rumpf

active boot switches: -d:release
PS C:\Users\HamidB80\Documents\programming\Enterprise_Computing> 

[hamidb80]

If not, please reopen.

seems like I cannot reopen this issue, due to changes in Github

[Araq]

Is this problem reproducible on Linux?

[hamidb80]

Is this problem reproducible on Linux?

unfortunately yes,

CC: play.nim
Hint:  [Link]
Hint: mm: orc; threads: on; opt: none (DEBUG BUILD, `-d:release` generates faster code)
69976 lines; 6.888s; 114.988MiB peakmem; proj: /home/hamidb80/Documents/programming/play/play.nim; out: /home/hamidb80/.cache/nim/play_d/play_A868D214FBFE7FA0D1C492875840D762FD8CA67C [SuccessX]
Hint: /home/hamidb80/.cache/nim/play_d/play_A868D214FBFE7FA0D1C492875840D762FD8CA67C 

[Exec]
Serving on http://localhost:6001/

Traceback (most recent call last)
/home/hamidb80/.nimble/pkgs2/mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6/mummy.nim(518) workerProc
/home/hamidb80/.nimble/pkgs2/mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6/mummy.nim(449) runTask
/home/hamidb80/.nimble/pkgs2/mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6/mummy/routers.nim(221) :anonymous
SIGSEGV: Illegal storage access. (Attempt to read from nil?)
Segmentation fault (core dumped)
Error: execution of an external program failed: '/home/hamidb80/.cache/nim/play_d/play_A868D214FBFE7FA0D1C492875840D762FD8CA67C'

$ nim -v
Nim Compiler Version 2.1.1 [Linux: amd64]
Compiled at 2024-06-26
Copyright (c) 2006-2024 by Andreas Rumpf

git hash: 948fc29bb20018437678e7c11019f1f2455c3a72
active boot switches: -d:release

$ lsb_release -a
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.1 LTS

[Araq]

Cannot reproduce on Linux either. Even compiling with -d:useSysAssert is fine. Try it with -d:useSysAssert please.

[Araq]

I don't use Insomnia though, I simply use my browser and navigate to http://localhost:6001/.

[hamidb80]

Hey, I truly appreciate your time and attention,

here's the modified code (I've made it single threaded by workerThreads = 1)

import std/os
import mummy, mummy/routers


proc index(req: Request) =
  sleep 300
  req.respond 200, emptyHttpHeaders(), "Hello, World!"

proc initRouter: Router = 
  result.get "/", index

let server = newServer(initRouter(), workerThreads = 1)

when isMainModule:
  echo "Serving on http://localhost:6001/"
  serve server, Port 6001, "localhost"

---

Result

1. Sometimes without -d:useSysAssert

$ nim -f r play.nim 

/home/hamidb80/Documents/programming/play/play.nim(16) play
/home/hamidb80/.nimble/pkgs2/mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6/mummy.nim(1441) serve
/home/hamidb80/.nimble/pkgs2/mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6/mummy.nim(1345) loopForever
/home/hamidb80/.nimble/pkgs2/mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6/mummy.nim(1067) afterRecv
/home/hamidb80/.choosenim/toolchains/nim-#devel/lib/std/envvars.nim(217) afterRecvHttp
SIGSEGV: Illegal storage access. (Attempt to read from nil?)
Segmentation fault (core dumped)

2. Sometimes without -d:useSysAssert

$ nim -f r play.nim 

/home/hamidb80/.nimble/pkgs2/mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6/mummy.nim(1441) serve
/home/hamidb80/.nimble/pkgs2/mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6/mummy.nim(1345) loopForever
/home/hamidb80/.nimble/pkgs2/mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6/mummy.nim(1067) afterRecv
/home/hamidb80/.nimble/pkgs2/mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6/mummy.nim(908) afterRecvHttp
/home/hamidb80/.choosenim/toolchains/nim-#devel/lib/pure/strutils.nim(50) cmpIgnoreCase
SIGSEGV: Illegal storage access. (Attempt to read from nil?)
Segmentation fault (core dumped)

3.always with d:useSysAssert

$ nim -f -d:useSysAssert r play.nim 

[Exec]
Serving on http://localhost:6001/
Dropped response to disconnected client
[SYSASSERT] rawAlloc 3

---

Nim Version

$ nim -v 
im Compiler Version 2.1.1 [Linux: amd64]
Compiled at 2024-06-26
Copyright (c) 2006-2024 by Andreas Rumpf

git hash: 948fc29bb20018437678e7c11019f1f2455c3a72
active boot switches: -d:release

[hamidb80]

I don't use Insomnia though, I simply use my browser and navigate to http://localhost:6001/.

no problem, just hit Ctrl+R multiple times

[Araq]

no problem, just hit Ctrl+R multiple times

That's what I do, but as I said, cannot reproduce. Probably I should use wrk and run a stress test.

[hamidb80]

but as I said, cannot reproduce

strange, does my Nim's git hash matches yours?
948fc29bb20018437678e7c11019f1f2455c3a72

can anyone else give it a try?

[Araq]

You need:

commit 8096fa4
Date: Wed Jun 26 05:09:05 2024 +0200

fixes #23725; Size computations work better when they are correct (#23758)

[backport]

[hamidb80]

I thought choosenim update devel downloaded latest Nim version