I've noticed this as a long-standing problem since earlier emacs version. I hadn't identified it as related to particularly large files, but now that you mention it, the problem seems to always occur when running rmail or (now) gnus. I tend to have quite large mail files.
I've noticed this as a long-standing problem since earlier emacs version. I hadn't identified it as related to particularly large files, but now that you mention it, the problem seems to always occur when running rmail or (now) gnus. I tend to have quite large mail files.