[erlang-questions] How to analyse why (w)erl.exe is not starting?

Boris Mühmer <>
Mon Sep 27 20:38:58 CEST 2010


Well, thanks for all Your input... I just took some time, to have a
closer look...

2010/9/26 Koener Antoine <>:
> Look for 'depends.exe', this is the windows 'ldd' command.
> You'll spot which dll is missing if any.

Not a missing dll, but some interesting behaviour, when using
the profile mode of Dependency Walker on "werl.exe":

1) R13B4/erl5.7.5: everything works (nothing new).
2) R14B/erl5.8.1/normal binary: profiling fails with
    MS/VC++: "The application has requested the Runtime to terminate
in an unusual way."
3) R14B/erl5.8.1/debug binary (under erts-5.8.1/bin): profiling fails with
    Werl: "Unable to load emulator DLL
(C:\PROGRA~2\ERL58~1.1\ERTS~1.1\ERTS-5~1.1\bin\beam.smp.dll)"
4) I reinstalled R14B using a short path (just under C:, nur under
program files): no improvement

I attached both the profile logs for WERL R13B4 and R14B.

There are several interesting things in it:
a) What's this (this also happens with the working R13B4):
    Loaded "NOT_AN_IMAGE" at address 0x7D4C0000.  Cannot hook module.

b) Another error (this also happens with the working R13B4):
    GetProcAddress(0x77BA0000 [MSVCRT.DLL], "_get_terminate") called
from "MSVCR80.DLL" at address 0x7813447F and returned NULL. Error: The
specified procedure could not be found (127).

c) This is the death blow:
    DllMain(0x00A90000, DLL_PROCESS_ATTACH, 0x00000000) in
"BEAM.SMP.DLL" returned 0 (0x0).

d) This belogs to "c" I think
    LoadLibraryA("C:\PROGRA~2\ERL58~1.1\ERTS-5~1.1\bin\beam.smp.dll")
returned NULL. Error: A dynamic link library (DLL) initialization
routine failed (1114).


I just wonder: what has changed from R13B4 to R14B to break it only on
"that" system.
"That" system is a "managed server" hosted by "1und1" using
"Virtuozzo". Somehow I believe "Virtuozzo" may be the root of this
problem.


  - boris
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