Bus Error crash (PR#551)
On Mon, 22 May 2000 kjetikj@astro.uio.no wrote:
Full_Name: Kjetil Kjernsmo Version: 1.0.1 OS: osf1 Submission from: (NULL) (129.240.28.227) Ouch, another obscure bug... I just had a bus error crash, with a core dump, a small one this time. Usual <URL:http://www.astro.uio.no/~kjetikj/tmp/core>. I had done a few simulations, and done a chisq.test() on them. These simulations also write about 190MB's to file, but I have no idea whether that is relevant, and those data are not used. The calls I do look like this:
ch1 <- chisq.test(t(apply(cbind(rep(5000000, 4)), 1, lineprofile, 1, 100,
"point")))
ch1
Pearson's Chi-square test data: t(apply(cbind(rep(5e+06, 4)), 1, lineprofile, 1, 100, "point")) X-squared = 463.8359, df = 300, p-value = 3.726e-09
ch1$observed
Process R bus error (core dumped) at Mon May 22 12:38:49 2000 ....so it doesn't crash when I print the whole object, but when I a vector of the object, it crashes... And, restarting R, it doesn't happen. I heard the sysadm who did the installation had some problems, I don't know what it was about, but if I understood him correctly, it only happened when he tuned for EV6, so it shouldn't be a problem now, I guess.... Kjetil
I can't reproduce the problem on my system (R Version: 1.0.0, OS: osf1 V5.0). Compiled with gcc/g77 using optimisation level -O2 (determined by configure script).
ch1 <- chisq.test(t(apply(cbind(rep(5000000, 4)), 1, lineprofile, 1,
100,"point")))
ch1
Pearson's Chi-square test data: t(apply(cbind(rep(5e+06, 4)), 1, lineprofile, 1, 100, "point")) X-squared = 404.6772, df = 300, p-value = 5.125e-05
ch1$observed
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12] [,13] [,14] [1,] 160 144 205 244 273 314 395 454 521 592 713 864 905 1043 [2,] 139 175 210 232 276 369 372 459 525 566 687 781 886 981 ... etc ... Brad -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._