Hello, I have a large emacs desktop file (600+ buffers at the moment). Emacs 24.5 would open all the buffers just fine, but 25.0.91 (and 90) apparently don't close the file after reading the buffer (or maybe it's part of the new kqueue stuff?). By default OS X limits the number of file descriptors per process to 256. So trying to open my large desktop file gets it into a stuck state where it cannot open any more files after it loads the first 240ish buffers. This seems to me like a regression from 24.5 to 25.1. -David In GNU Emacs 25.0.91.1 (x86_64-apple-darwin13.4.0, NS appkit-1265.21 Version 10.9.5 (Build 13F1603)) of 2016-02-13 built on builder10-9.local Windowing system distributor 'Apple', version 10.3.1404 Configured using: 'configure --with-ns '--enable-locallisppath=/Library/Application Support/Emacs/${version}/site-lisp:/Library/Application Support/Emacs/site-lisp'' Configured features: NOTIFY ACL LIBXML2 ZLIB TOOLKIT_SCROLL_BARS NS Important settings: value of $LANG: en_US locale-coding-system: utf-8-unix Major mode: Fundamental Minor modes in effect: global-flycheck-mode: t auto-insert-mode: t save-place-mode: t show-paren-mode: t global-diff-hl-mode: t diff-auto-refine-mode: t global-auto-revert-mode: t delete-selection-mode: t tooltip-mode: t global-eldoc-mode: t electric-indent-mode: t mouse-wheel-mode: t file-name-shadow-mode: t global-font-lock-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t buffer-read-only: t size-indication-mode: t column-number-mode: t line-number-mode: t transient-mark-mode: t Recent messages: Loading delsel...done Loading autorevert...done Loading diff-hl...done Loading undo-tree...done Loading gnus...done Loading paren...done For information about GNU Emacs and the GNU system, type C-h C-a. Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug flycheck find-func rx subr-x seq byte-opt gv bytecomp byte-compile cconv cl-extra dash david-custom-emacs-setup advice editorconfig commit-patch-buffer log-edit message sendmail dired format-spec rfc822 mml mml-sec epg mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045 ietf-drums mailabbrev gmm-utils mailheader ring pcvs-util add-log david-headers autoinsert ginel-string david-keys david-movement david-coding-style saveplace calmer-forest-theme paren gnus gnus-ems nnheader gnus-util mail-utils mm-util help-fns help-mode mail-prsvr wid-edit undo-tree diff diff-hl edmacro kmacro smartrep vc-dir ewoc vc cl-loaddefs pcase cl-lib vc-dispatcher diff-mode easy-mmode autorevert filenotify delsel cus-start cus-load benchmark finder-inf ack-and-a-half-autoloads go-mode-autoloads magithub-autoloads mode-compile-autoloads nav-autoloads rainbow-mode-autoloads slime-autoloads svg-clock-autoloads info package easymenu epg-config time-date mule-util tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel ns-win ucs-normalize term/common-win tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment elisp-mode lisp-mode prog-mode register page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese charscript case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer cl-preloaded nadvice loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote kqueue cocoa ns multi-tty make-network-process emacs) Memory information: ((conses 16 347585 16892) (symbols 48 27326 1) (miscs 40 109 303) (strings 32 44145 10694) (string-bytes 1 1249905) (vectors 16 48605) (vector-slots 8 1487708 148374) (floats 8 246 26) (intervals 56 329 94) (buffers 976 12))