When using org-mode with a diary file of ~2000 lines, I attempted to use C-c C-x C-w to kill about three-quarters of the file. Emacs crashed without core file.
In GNU Emacs 24.1.1 (x86_64-apple-darwin, NS apple-appkit-1038.36) of 2012-06-10 on bob.porkrind.org Windowing system distributor `Apple', version 10.3.1187 Configured using: `configure '--host=x86_64-apple-darwin' '--build=i686-apple-darwin' '--with-ns' 'build_alias=i686-apple-darwin' 'host_alias=x86_64-apple-darwin' 'CC=gcc -mmacosx-version-min=10.5''
Important settings: value of $LC_ALL: nil value of $LC_COLLATE: nil value of $LC_CTYPE: nil value of $LC_MESSAGES: nil value of $LC_MONETARY: nil value of $LC_NUMERIC: nil value of $LC_TIME: nil value of $LANG: nil value of $XMODIFIERS: nil locale-coding-system: nil default enable-multibyte-characters: t
Major mode: Lisp Interaction
Minor modes in effect: erc-services-mode: t erc-networks-mode: t global-linum-mode: t linum-mode: t paredit-mode: t ido-everywhere: t show-paren-mode: t recentf-mode: t yas/global-mode: t yas/minor-mode: t mouse-wheel-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t
Recent input: M-x r e p o r t - e m a c s - b u g <return>
Recent messages: Saving all Org-mode buffers... done Saving all Org-mode buffers... (No files need saving) Saving all Org-mode buffers... done Saving all Org-mode buffers... (No files need saving) Saving all Org-mode buffers... done Saving all Org-mode buffers... (No files need saving) Saving all Org-mode buffers... done