[R] lm/glm/glm.nb crashing in latest RStudio

[Rui Barradas]

On 10/21/2025 2:24 PM, Leslie Rutkowski wrote:
> In the latest update to RStudio (2025.09.1-401), is anyone else
> experiencing system crashes with modeling functions? I'm getting the
> dreaded "bomb" icon with "R Session Aborted".
> 
> It's happened for me on 3 different machines (2 of mine, one on a
> university classroom machine) and with 3 different functions [lm(); glm();
> and MASS::glm.nb()]. I've raised this on the Posit community forum with no
> response. So, I thought I'd try here.
> 
> For context, everything runs fine directly in R - it seems to be RStudio. I
> backed up to the previous version and everything is fine there as well.
> 
> Thanks,
> Leslie
> 
> 	[[alternative HTML version deleted]]
> 
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Hello,

No, no errors, everything is fine.


"RStudio 2025.09.1+401"
#> [1] "RStudio 2025.09.1+401"

lm(mpg ~ am, mtcars)
#>
#> Call:
#> lm(formula = mpg ~ am, data = mtcars)
#>
#> Coefficients:
#> (Intercept)           am
#>      17.147        7.245

sessionInfo()
#> R version 4.5.1 (2025-06-13 ucrt)
#> Platform: x86_64-w64-mingw32/x64
#> Running under: Windows 11 x64 (build 22631)
#>
#> Matrix products: default
#>   LAPACK version 3.12.1
#>
#> locale:
#> [1] LC_COLLATE=Portuguese_Portugal.utf8 
LC_CTYPE=Portuguese_Portugal.utf8
#> [3] LC_MONETARY=Portuguese_Portugal.utf8 LC_NUMERIC=C 

#> [5] LC_TIME=Portuguese_Portugal.utf8
#>
#> time zone: Europe/Lisbon
#> tzcode source: internal
#>
#> attached base packages:
#> [1] stats     graphics  grDevices utils     datasets  methods   base
#>
#> loaded via a namespace (and not attached):
#>  [1] digest_0.6.37     fastmap_1.2.0     xfun_0.53         glue_1.8.0 

#>  [5] knitr_1.50        htmltools_0.5.8.1 rmarkdown_2.29 
lifecycle_1.0.4
#>  [9] cli_3.6.5         reprex_2.1.1      withr_3.0.2 
compiler_4.5.1
#> [13] rstudioapi_0.17.1 tools_4.5.1       evaluate_1.0.5 
yaml_2.3.10
#> [17] rlang_1.1.6       fs_1.6.6


Hope this helps,

Rui Barradas