On Thu, Nov 30, 2017 at 10:38 PM, Sage Weil <sweil@xxxxxxxxxx> wrote: > On Thu, 30 Nov 2017, Nathan Cutler wrote: >> I thought we already agreed to drop Trusty in Mimic? > > I'm not sure we made any final decision, but I haven't seen anyone > complain this time around, so I'd say let's do it! good news, every one! we are now building ceph using gcc-7 on centos7 and trusty. an example build with gcc-4.8 on trusty: https://jenkins.ceph.com/job/ceph-dev-build/ARCH=x86_64,AVAILABLE_ARCH=x86_64,AVAILABLE_DIST=trusty,DIST=trusty,MACHINE_SIZE=huge/13152//consoleFull /// we have following warning message: ----8<---- CMake Warning at src/CMakeLists.txt:176 (message): performance regression is expected due to an O(n) implementation of 'std::list::size()' in libstdc++ older than 5.1.0 ------>8---- an example build with gcc-7 on trusty: see https://jenkins.ceph.com/job/ceph-dev-build/ARCH=x86_64,AVAILABLE_ARCH=x86_64,AVAILABLE_DIST=trusty,DIST=trusty,MACHINE_SIZE=huge/13156//consoleFull /// the warning message is gone. a build with gcc-7 on centos-7, see https://jenkins.ceph.com/job/ceph-dev-build/ARCH=x86_64,AVAILABLE_ARCH=x86_64,AVAILABLE_DIST=centos7,DIST=centos7,MACHINE_SIZE=huge/13155//consoleFull once all trusty testnodes are re-imaged with xenial, i will try to remove the trusty build support on ceph/ceph-build. BTW, if we want to use gcc-7 on xenial, which ships GCC 5.3, we can apply the same fix on it also. the only issue is http://tracker.ceph.com/issues/22301. its fix is pending on review. -- Regards Kefu Chai -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
