[Bug 1883880] Re: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic
Thanks Lukasz, Christian, Robie, Matthias, and the various robots and launchpad janitors: appreciate your help! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883880 Title: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/1883880/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1883880] Re: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic
Hey Folks, Does the -proposed changes get automatically integrated to -updates after a certain time has passed, or does this require somebody to take action? It would be great to have this update rolled out to 18.04 before OVS 2.14 is released in a week or two. Regards, -Harry -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883880 Title: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/1883880/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1883880] Re: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic
Hi All, I have enabled the bionic-proposed repo as described in link. OVS-master is used for testing, containing the build-time binutils bug check as described above. 1) Can confirm that old binutils version (2.30-21ubuntu1~18.04.3) had issue, and OVS was correctly DISabling AVX512. 2) Can confirm that with -proposed binutils (2.30-21ubuntu1~18.04.4), OVS build system is correctly ENabling AVX512 support, as linker checks are passing. After the configure step, I have tested OVS, running traffic and enabling the AVX512 optimizations. It is working as expected, with AVX512 instructions running in the datapath. I believe you have already added the "verification-done" and bionic versions Christian, so I'll not change the status... please let me know if I misunderstood the process. Thanks Robie & Christian for your support on this issue! -Harry -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883880 Title: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/1883880/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1883880] Re: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic
Hi Christian, Thanks for the additional info! Confirm that with the PPA the proposed checks now pass: $ echo "vmovaps 0x40(,%rax,1),%zmm0" | as --64 -o avx.o && objdump -d avx.o | grep vmovaps 8: 0: 62 f1 7c 48 28 04 05vmovaps 0x40(,%rax,1),%zmm0 Also the proposed OVS automake build-system changes will enable avx512 correctly: checking binutils avx512 assembler checks passing... yes I'll wait for the SRU team to accept into proposed. Regards, -Harry -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883880 Title: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/1883880/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1883880] Re: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic
Hey Folks, Apologies I'm not familiar with the SRU testing process. I'd like to help - have an 18.04 setup for testing here. Is there an easy way to add the test-build PPA and just do an apt update && apt install binutils? https://launchpad.net/~ci-train-ppa- service/+archive/ubuntu/4105/+packages Regards, -Harry -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883880 Title: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/1883880/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1883880] Re: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic
Proposed patch on OVS Mailing list to check status at configure time for OVS 2.14 using the method Bruce mentioned above: https://patchwork.ozlabs.org/project/openvswitch/patch/20200618165354.87787-7-harry.van.haa...@intel.com/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883880 Title: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/1883880/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
