On Tue, Dec 5, 2017 at 11:03 PM, Sage Weil <sweil@xxxxxxxxxx> wrote: > On Tue, 5 Dec 2017, kefu chai wrote: >> 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 > > Yay!! > >> 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. > > I think we need to keep the trusty build support there for luminous and > jewel builds, right? gahhh! i completely neglected them! then i will need to build them using the old toolchain, otherwise they will fail at run-time, due to missing libstdc++ ABI version! will send a PR on ceph/ceph-build tomorrow. > >> 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 >> >> -- 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
