NEFTH@pacbell.net
2002-May-28 06:42 UTC
When dev.list() is NULL, dev.control() causes core dump (PR#1605)
The following sequence of commands:
graphics.off()
dev.control("inhibit")
causes R to memory-fault and core dump. This is reported
for a new port of R, but is also reproducible on Windows
and Solaris. The Windows fault is:
RGUI caused an invalid page fault in
module R.DLL at 017f:00475663.
Registers:
EAX=00e4dfd8 CS=017f EIP=00475663 EFLGS=00010246
EBX=00000001 SS=0187 ESP=008ff144 EBP=008ff15c
ECX=00002af0 DS=0187 ESI=0059f8c0 FS=4a17
EDX=00000000 ES=0187 EDI=00e68dd0 GS=0000
Bytes at CS:EIP:
89 82 d8 00 00 00 8d 65 e8 5b 5e c9 c3 55 89 e5
Stack dump:
0059f8c0 00e4dfd8 01758ba0 8065a5a8 17a70d3f 0c700f47 008ff18c 00497293
0059f8c0 010abc04 008ff19c 004fb6d0 00000001 00476385 008ff1cc 0047da55
The following patch (diff -c) corrects the problem,
when applied to src/main/plot.c:
PATCH BEGIN
*** plot.c.orig Tue Dec 4 23:43:43 2001
--- plot.c Sun May 26 11:06:25 2002
***************
*** 52,58 ****
SEXP do_devcontrol(SEXP call, SEXP op, SEXP args, SEXP env)
{
checkArity(op, args);
! inhibitDisplayList(CurrentDevice());
return R_NilValue;
}
--- 52,60 ----
SEXP do_devcontrol(SEXP call, SEXP op, SEXP args, SEXP env)
{
checkArity(op, args);
! if(!NoDevices()){
! inhibitDisplayList(CurrentDevice());
! }
return R_NilValue;
}
PATCH END
--please do not edit the information below--
Version:
platform = i386-pc-sco3.2v4.2
arch = i386
os = sco3.2v4.2
system = i386, sco3.2v4.2
status major = 1
minor = 4.1
year = 2002
month = 01
day = 30
language = R
Search Path:
.GlobalEnv, Autoloads, package:base
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