Package: emacs-gtk Version: 1:26.1+1-3.2 Severity: normal File: /usr/bin/emacs-gtk
In Emacs 26, compilation-mode has become painfully slow to scan for the next error, when applied to the build logs typically produced by GNU libc. As I am one of GNU libc's upstream maintainers, this is a pretty inconvenient regression for me. I'm attaching a build log that will demonstrate the problem. It is 1.1MB when uncompressed. On my computer, when I load the file into a buffer and then type C-x `, Emacs 26 becomes unresponsive and consumes 100% CPU for two and a half minutes before moving point to a line near the end of the file. (C-g works, but then the buffer's idea of which lines are errors is corrupted.) In Emacs 25 this operation was instantaneous. Besides next-error, several other operations cause the same effect, such as end-of-buffer or an isearch that has to scan a lot of the buffer. -- System Information: Debian Release: buster/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0-4-amd64 (SMP w/8 CPU cores) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages emacs-gtk depends on: ii emacs-bin-common 1:26.1+1-3.2 ii emacs-common 1:26.1+1-3.2 ii libacl1 2.2.53-4 ii libasound2 1.1.8-1 ii libatk1.0-0 2.30.0-2 ii libc6 2.28-8 ii libcairo-gobject2 1.16.0-4 ii libcairo2 1.16.0-4 ii libdbus-1-3 1.12.12-1 ii libfontconfig1 2.13.1-2 ii libfreetype6 2.9.1-3 ii libgdk-pixbuf2.0-0 2.38.1+dfsg-1 ii libgif7 5.1.4-3 ii libglib2.0-0 2.58.3-1 ii libgnutls30 3.6.6-3 ii libgomp1 8.3.0-3 ii libgpm2 1.20.7-5 ii libgtk-3-0 3.24.5-1 ii libice6 2:1.0.9-2 ii libjpeg62-turbo 1:1.5.2-2+b1 ii liblcms2-2 2.9-3 ii libm17n-0 1.8.0-2 ii libmagickcore-6.q16-6 8:6.9.10.23+dfsg-2 ii libmagickwand-6.q16-6 8:6.9.10.23+dfsg-2 ii libotf0 0.9.13-4 ii libpango-1.0-0 1.42.4-6 ii libpangocairo-1.0-0 1.42.4-6 ii libpng16-16 1.6.36-5 ii librsvg2-2 2.44.10-1 ii libselinux1 2.8-1+b1 ii libsm6 2:1.2.3-1 ii libsystemd0 241-2 ii libtiff5 4.0.10-4 ii libtinfo6 6.1+20181013-2 ii libx11-6 2:1.6.7-1 ii libx11-xcb1 2:1.6.7-1 ii libxcb1 1.13.1-2 ii libxext6 2:1.3.3-1+b2 ii libxfixes3 1:5.0.3-1 ii libxft2 2.3.2-2 ii libxinerama1 2:1.1.4-2 ii libxml2 2.9.4+dfsg1-7+b3 ii libxpm4 1:3.5.12-1 ii libxrandr2 2:1.5.1-1 ii libxrender1 1:0.9.10-1 ii zlib1g 1:1.2.11.dfsg-1 emacs-gtk recommends no packages. Versions of packages emacs-gtk suggests: pn emacs-common-non-dfsg <none> -- no debconf information
emacs-slow-compilation-mode.txt.xz
Description: application/xz