Package: aptitude Version: 0.4.3-1 Severity: important
I've seen this problem repeatedly over time and found work of another that describes the symptoms: http://lists.debian.org/debian-user/2006/07/msg00465.html To sum up, in the aptitude source at src/vscreen/vscreen.cc:779 // Block WINCH so the signal_thread can pick it up. sigset_t signals; sigemptyset(&signals); sigaddset(&signals, SIGWINCH); sigprocmask(SIG_BLOCK, &signals, NULL); This causes processes installed to inherit the signal mask. As mentioned in the mailing list post linked above, the classic manifestation of this in sshd and screen/mutt/top/etc. Installing a new version of SSHd from aptitude leaves SIGWINCH blocked in the sshd process, making terminal resizes ignored from within curses-type applications. I am not an expert (nor have I found the code or time to work on a patch), but conceptually it seems the per-thread sig mask needs to block SIGWINCH for all threads except the one that handles it. I know that there's got to be some weirdness in the process/thread mixed world. This is the article I'm basing my ideas on: http://www.linuxjournal.com/article/2121 -- System Information: Debian Release: testing/unstable APT prefers experimental APT policy: (990, 'experimental'), (500, 'unstable') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.17.7 Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Versions of packages aptitude depends on: ii apt [libapt-pkg-libc6.3 0.6.46.1 Advanced front-end for dpkg ii libc6 2.5-0exp1 GNU C Library: Shared libraries ii libgcc1 1:4.2-20061003-1 GCC support library ii libncursesw5 5.5-4 Shared libraries for terminal hand ii libsigc++-2.0-0c2a 2.0.17-2 type-safe Signal Framework for C++ ii libstdc++6 4.2-20061003-1 The GNU Standard C++ Library v3 Versions of packages aptitude recommends: pn aptitude-doc-en | aptitude-do <none> (no description available) -- no debconf information -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
