Package: acpid Version: 1:2.0.19-1 Severity: important Tags: upstream acpid's fd watching code (connection_list.c) currently sets MAX_CONNECTIONS to 20, but it also opens every single event interface in /dev/input. A modern machine with a modern kernel can easily have 20+ event interfaces, consuming the entire fd list. When the socket is opened (after the event interfaces), add_connection() fails and acpid ignores the socket. The first 10 connections to /var/run/acpid.socket will succeed (the size of the listen() queue) and any additional connections will block until acpid is killed.
I marked this important because of the way it exhibits itself: Xorg is the main user of the acpid socket on my system, and it reopens the socket each time the console is changed (including a wake from suspend). After the 10th wake or console switch back to X, the X server will block on the connect() to /var/run/acpid.socket and render the system completely unusable from the console. (It is possible to recover by restarting acpid over an ssh session, though.) The upstream sourceforge project does not allow bug reports, so I'm reporting through the Debian BTS and Ccing the author. The simplest fix would be simply raising MAX_CONNECTIONS in connection_list.c, but it would be better if acpid just died when it was unable to track its unix socket -- this is not the first time this exact scenario has happened (see Debian bug #565908). -- System Information: Debian Release: jessie/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.8-2-amd64 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages acpid depends on: ii kmod 9-3 ii libc6 2.17-92 ii lsb-base 4.1+Debian12 Versions of packages acpid recommends: ii acpi-support-base 0.141-2 acpid suggests no packages. -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
