On Fri, Jul 25, 2014 at 10:35:41PM -0000, Matt Bruzek wrote: > I believe the gccgo 4.9.1 compiler fix is a good thing. After > rebuilding Juju with gccgo-4.9_4.9.1-1ubuntu3_ppc64el.deb I was unable > to get the "juju ssh" problem I had seen previously.
For purposes of this SRU bug, please verify the juju-core 1.18.4+dfsg-0ubuntu0.14.04.1 package in trusty-proposed, not a locally-built juju-core package built using the compiler from utopic. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gccgo-4.9 in Ubuntu. https://bugs.launchpad.net/bugs/1304754 Title: gccgo has issues when page size is not 4kB Status in The GNU Compiler Collection: Fix Released Status in “gcc-4.9” package in Ubuntu: Fix Released Status in “gccgo-4.9” package in Ubuntu: Invalid Status in “gcc-4.9” source package in Trusty: Invalid Status in “gccgo-4.9” source package in Trusty: In Progress Status in “gcc-4.9” source package in Utopic: Fix Released Status in “gccgo-4.9” source package in Utopic: Invalid Bug description: On kernels 3.13-18 and 3.13-23 (there may be others) the kernel is killing gccgo compiled binaries [18519.444748] jujud[19277]: bad frame in setup_rt_frame: 0000000000000000 nip 0000000000000000 lr 0000000000000000 [18519.673632] init: juju-agent-ubuntu-local main process (19220) killed by SEGV signal [18519.673651] init: juju-agent-ubuntu-local main process ended, respawning In powerpc/kernel/signal_64.c: sys_rt_sigreturn is jumping to the badframe: label and executing an unconditional force_sigsegv which is delivered to the userland process. Like C++, gccgo tries to decode SIGSEGV as a nil pointer access and blame some random function that happened to be the top stack frame. Reverting to the 3.13-08 kernel appears to resolve the issue which (weakly) points the finger at the recent switch to 64k pages. To manage notifications about this bug go to: https://bugs.launchpad.net/gcc/+bug/1304754/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
