R devel - Sep 2000 - bug.report("unused argument(s) crash R when options(error=quote (PR#663)

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Hello!

I have observed a curious problem with the Windows version of
R.
> version
         _
platform Windows
arch     x86
os       Win32
system   x86, Win32
status
major    1
minor    1.1
year     2000
month    August
day      15
language R
> win.version()
[1] "Windows NT 4.0 (build 1381) Service Pack 5"

When I mistype an argument in a function call (like in the example below), Rgui
crashes with the message:
The instruction at "0x025571b8" uses the memory address
"0x00000008". The memory
 can't be "read". (This is my translation from French, but I guess
it's
something like that in English.)

Example:
> ls(poq=3)
Normally, one should get a message saying:
Error in ls(poq = 3) : unused argument(s) (poq ...)

In my etc/Rprofile file I have added the following line:
options(error=quote(dump.frames()))

When I comment this line out, Rgui works OK (i.e. I get the message "Error
in
ls(poq = 3) : unused argument(s) (poq ...)").

This happens for any other typo that should normally cause the message
"unused
argument(s)", like "matrix(1:15, nrow=5, byrox=TRUE)", or
anything else.

The same happens with Rterm, except that you see the error message before Rterm
dies, and the message is little bit different:
The instruction at "0x02556678" uses the memory address
"0xec83e591". The memory
 can't be "read".

It happens on both my desktop and my laptop, but since both are running the same
 OS version (NT4 SP5), it's not so surprising.

Also, I have the same behaviour with the previous version of
R
> version
         _
platform Windows
arch     x86
os       Win32
system   x86, Win32
status
major    1
minor    1.0
year     2000
month    June
day      15
language R


Did I do anything wrong, or is it a problem with R.dll?

It is not a big problem, but I just wanted let you know about it.

Best regards

Zivan



--please do not edit the information below--

Version:
 platform = Windows
 arch = x86
 os = Win32
 system = x86, Win32
 status  major = 1
 minor = 1.1
 year = 2000
 month = August
 day = 15
 language = R

Windows NT 4.0 (build 1381) Service Pack 5

Search Path:
 .GlobalEnv, Autoloads, package:base



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zivan.karaman@limagrain.com writes:
> The instruction at "0x025571b8" uses the memory address
"0x00000008". The memory
>  can't be "read". (This is my translation from French, but I
guess it's
> something like that in English.)
> 
> Example:
> > ls(poq=3)
> Normally, one should get a message saying:
> Error in ls(poq = 3) : unused argument(s) (poq ...)
> 
> In my etc/Rprofile file I have added the following line:
> options(error=quote(dump.frames()))
Whoops. This also crashes on Linux (good - then we can debug it more
conveniently...) In the development version too:

> ls(poq=3)
Error in ls(poq = 3) : unused argument(s) (poq ...)

Program received signal SIGSEGV, Segmentation fault.
0x807e1c7 in Rf_findVarInFrame (rho=0xbffff4cc, symbol=0x83c7354)
    at ../../../R/src/main/envir.c:677
677             hashcode = HASHVALUE(c) % HASHSIZE(HASHTAB(rho));
(gdb) l
672             c = PRINTNAME(symbol);
673             if( !HASHASH(c) ) {
674                 SET_HASHVALUE(c, R_Newhashpjw(CHAR(c)));
675                 SET_HASHASH(c, 1);
676             }
677             hashcode = HASHVALUE(c) % HASHSIZE(HASHTAB(rho));

(I don't really have time to debug this further just now, the symbol is
"dump.frames" in case anyone wants to dig deeper)

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907
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