hello world Mummy web server crashes on devel #23724

hamidb80 · 2024-06-15T07:14:22Z

Description

the following code is a hello world web server using mummy which crashes when you hit send multiple times in Insomnia ( an app similar to Postman, for testing API's )

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()

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

Nim Version

Nim Compiler Version 2.1.1 [Windows: amd64]
Compiled at 2024-06-10
Copyright (c) 2006-2024 by Andreas Rumpf

active boot switches: -d:release

Current Output

Serving on http://localhost:6001/

Traceback (most recent call last)
\play.nim(16) play
\.nimble\pkgs2\mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6\mummy.nim(1441) serve
\.nimble\pkgs2\mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6\mummy.nim(1345) loopForever
\.nimble\pkgs2\mummy-0.4.2-2c3d0bdf8525a27ff1eae97e9f23695022eabbb6\mummy.nim(1067) afterRecv
\.choosenim\toolchains\nim-#devel\lib\std\envvars.nim(217) afterRecvHttp
SIGSEGV: Illegal storage access. (Attempt to read from nil?)

Expected Output

no crash

Possible Solution

no idea

Additional Information

tested in Windows 10.

does not crash until 2.0.4
crashes in devel

The text was updated successfully, but these errors were encountered:

Araq · 2024-06-16T07:17:48Z

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

hamidb80 · 2024-06-16T10:24:41Z

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

Yes, no problem with -d:useMalloc

Araq · 2024-06-26T05:16:38Z

Should be fixed by #23758

If not, please reopen.

hamidb80 · 2024-06-26T06:45:24Z

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 · 2024-06-26T06:46:35Z

If not, please reopen.

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

Araq · 2024-06-26T09:18:02Z

Is this problem reproducible on Linux?

hamidb80 · 2024-06-26T10:19:31Z

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 · 2024-06-26T10:45:37Z

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

Araq · 2024-06-26T17:19:17Z

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

Araq · 2024-06-26T17:22:14Z

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

hamidb80 · 2024-06-26T19:46:18Z

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 · 2024-06-26T19:49:41Z

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 · 2024-06-26T20:06:01Z

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 · 2024-06-26T20:07:01Z

but as I said, cannot reproduce

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

can anyone else give it a try?

Araq · 2024-06-26T20:25:15Z

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 · 2024-06-26T20:32:10Z

I thought choosenim update devel downloaded latest Nim version

hamidb80 · 2024-06-26T20:33:39Z

I'm really sorry for that,

hamidb80 changed the title ~~simple mummy web server crashes on devel~~ hello world mummy web server crashes on devel Jun 15, 2024

hamidb80 changed the title ~~hello world mummy web server crashes on devel~~ hello world Mummy web server crashes on devel Jun 15, 2024

Araq added Showstopper Regression labels Jun 15, 2024

planetis-m mentioned this issue Jun 16, 2024

Sigsegv on std/tasks destructor #23725

Closed

Araq closed this as completed Jun 26, 2024

Araq reopened this Jun 26, 2024

Araq added allocator and removed Showstopper labels Jun 26, 2024

Araq added the Not Reproduced label Jun 26, 2024

hamidb80 closed this as completed Jun 26, 2024

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

hello world Mummy web server crashes on devel #23724

hello world Mummy web server crashes on devel #23724

hamidb80 commented Jun 15, 2024 •

edited

Loading

Araq commented Jun 16, 2024

hamidb80 commented Jun 16, 2024

Araq commented Jun 26, 2024

hamidb80 commented Jun 26, 2024

hamidb80 commented Jun 26, 2024

Araq commented Jun 26, 2024

hamidb80 commented Jun 26, 2024 •

edited

Loading

Araq commented Jun 26, 2024

Araq commented Jun 26, 2024

Araq commented Jun 26, 2024

hamidb80 commented Jun 26, 2024

hamidb80 commented Jun 26, 2024

Araq commented Jun 26, 2024

hamidb80 commented Jun 26, 2024 •

edited

Loading

Araq commented Jun 26, 2024 •

edited

Loading

hamidb80 commented Jun 26, 2024

hamidb80 commented Jun 26, 2024 •

edited

Loading

hello world Mummy web server crashes on devel #23724

hello world Mummy web server crashes on devel #23724

Comments

hamidb80 commented Jun 15, 2024 • edited Loading

Description

Nim Version

Current Output

Expected Output

Possible Solution

Additional Information

Araq commented Jun 16, 2024

hamidb80 commented Jun 16, 2024

Araq commented Jun 26, 2024

hamidb80 commented Jun 26, 2024

output

Nim Version

hamidb80 commented Jun 26, 2024

Araq commented Jun 26, 2024

hamidb80 commented Jun 26, 2024 • edited Loading

Araq commented Jun 26, 2024

Araq commented Jun 26, 2024

Araq commented Jun 26, 2024

hamidb80 commented Jun 26, 2024

Result

1. Sometimes without -d:useSysAssert

2. Sometimes without -d:useSysAssert

3.always with d:useSysAssert

Nim Version

hamidb80 commented Jun 26, 2024

Araq commented Jun 26, 2024

hamidb80 commented Jun 26, 2024 • edited Loading

Araq commented Jun 26, 2024 • edited Loading

hamidb80 commented Jun 26, 2024

hamidb80 commented Jun 26, 2024 • edited Loading

hamidb80 commented Jun 15, 2024 •

edited

Loading

hamidb80 commented Jun 26, 2024 •

edited

Loading

1. Sometimes without `-d:useSysAssert`

2. Sometimes without `-d:useSysAssert`

3.always with `d:useSysAssert`

hamidb80 commented Jun 26, 2024 •

edited

Loading

Araq commented Jun 26, 2024 •

edited

Loading

hamidb80 commented Jun 26, 2024 •

edited

Loading