** Description changed: screen crashed with SIGSEGV ProblemType: Crash DistroRelease: Ubuntu 14.04 Package: screen 4.1.0~20120320gitdb59704-9 ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0 Uname: Linux 3.13.0-5-generic x86_64 NonfreeKernelModules: openafs ApportVersion: 2.13.2-0ubuntu2 Architecture: amd64 CurrentDesktop: GNOME Date: Wed Jan 29 23:59:55 2014 ExecutablePath: /usr/bin/screen InstallationDate: Installed on 2010-12-05 (1152 days ago) InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20101202) ProcCmdline: SCREEN SegvAnalysis: - Segfault happened at: 0x7f4f000a1f15 <__GI_tcsetattr+117>: mov (%r8),%eax - PC (0x7f4f000a1f15) ok - source "(%r8)" (0x00001430) not located in a known VMA region (needed readable region)! - destination "%eax" ok + Segfault happened at: 0x7f4f000a1f15 <__GI_tcsetattr+117>: mov (%r8),%eax + PC (0x7f4f000a1f15) ok + source "(%r8)" (0x00001430) not located in a known VMA region (needed readable region)! + destination "%eax" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: screen StacktraceTop: - ?? () - ?? () - ?? () - ?? () - ?? () + ?? () + ?? () + ?? () + ?? () + ?? () Title: screen crashed with SIGSEGV UpgradeStatus: Upgraded to trusty on 2013-10-31 (91 days ago) UserGroups: + + [Impact] + * Byobu users of the byobu-screen backend will find their screen process crashed, if they hit ctrl-a (screen's default escape sequence). This is a critical breakage for byobu-screen users. + [Test Case] + * From a new or fresh Trusty installation (desktop or server), drop to a command line, and run 'byobu-screen'. You'll be interactively prompted to choose whether ctrl-a should be handled like screen or emacs. Choose (1) for screen. Your screen session is now crashed. + * Upgrade to the package in trusty-proposed, launch a new byobu-screen session, and press ctrl-a-c to create a new window, and then ctrl-a-n and ctrl-a-p and that should all work perfectly well now. + [Regression Potential] + * This fix does revert the change that was intended to fix a far more minor Bug: #814172. I have reopened that bug, will fix it separately, and upload another SRU later. + * Otherwise, regression potential should be minimal. Once that recent commit was reverted, the code looks very much like it's looked for a very long, stable time. + [Other Info] + * None
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