xterm freezes

[gregrwm]

i use xterm daily, it freezes maybe a couple times per week. i typically run tmux, so i can just open another xterm, reattach my tmux session, and discard the frozen xterm. wasn't happening in releases prior to trusty.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xterm 297-1ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
Uname: Linux 3.13.0-37-generic i686
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: i386
Date: Mon Nov 17 10:15:14 2014
InstallationDate: Installed on 2014-01-30 (290 days ago)
InstallationMedia: Lubuntu 14.04 "Trusty Tahr" - Alpha i386 (20140129)
SourcePackage: xterm
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[gregrwm (gregrwm)]

i just found a way to crash it repeatably. open a large file with less, eg a large /var/log/syslog, and hold down the page down key. xterm will freezeup quite quickly.

[gregrwm (gregrwm)]

the freezeup doesn't seem to happen unless the window is stretched some, it will freezeup if it's been stretched to 120x50 and hold down page down as per previous comment.

[gregrwm (gregrwm)]

it occurs to me this could well be a timing issue, having nothing to do with the specific number of columns or rows, but rather, perhaps, for an example, on whether input and output happen to collide, and some common function doesn't handle re-entrance properly..

[Johan Blomqvist (johanblomqvist)]

It seems that xterm freezes more frequently when scrolling in larger files in vim using vertical splits. The effect seems to be present regardless of using tmux splits or vim splits. The effect is worse for me when using vim-splits (which always results in laggy scrolling in all terminals I've tried).