[R] abrupt end to R

Duncan Murdoch dmurdoch at pair.com
Thu May 15 14:43:23 CEST 2003

On Thu, 15 May 2003 00:27:26 +0200, you wrote:

>Dear All,
>I haven't seen any further comments about the problem that John Marsland 
>first noted and that I also have:
> > library(DBI)
> > library(RMySQL)
>Warning message:
>DLL attempted to change FPU control word from 8001f to 9001f

It's a bad idea to ignore warnings!  This says that there's a problem
with the DLL that RMySQL is loading.  It is attempting to change the
rounding behaviour, and R is fighting back.  I don't know if that
would cause the error below, but it's a possibility.

> > mgr <- dbDriver("MySQL")
> > con <- dbConnect(mgr, host="localhost", dbname="marketing")
>upon which R dies...
>Dr. Mingw says:
>Rgui.exe caused an Access Violation at location 77c13730 in module 
>msvcrt.dll Reading from location 00000000.
>eax=10e501a0 ebx=00000000 ecx=00000000 edx=10e51fe0 esi=00000000 edi=003e3d08
>eip=77c13730 esp=0022d5ac ebp=0022d7f8 iopl=0         nv up ei pl zr na po nc
>cs=001b  ss=0023  ds=0023  es=0023  fs=0038  gs=0000             efl=00000246
>Call stack:
>77C13730  msvcrt.dll:77C13730  strlen
>004C799D  R.dll:004C799D  do_dotcall

I've cc'd this to the RMySQL maintainer David James; David J, if you
don't know what I'm talking about regarding rounding, I'd be happy to
expand on it.

Duncan Murdoch

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