[Bug 1883880] Re: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic

[Harry van Haaren]

Hi All,

I contacted Christian to mention/report, just noting that here.
Happy to test if we get an SRU, I'll get email notifications once I post this :)

Regards, -Harry

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https://bugs.launchpad.net/bugs/1883880

Title:
  fix non-8-bit x86 displacements breaking AVX512 builds on Bionic

Status in binutils package in Ubuntu:
  Fix Released
Status in binutils source package in Bionic:
  New

Bug description:
  Hi,
  DPDK has run into some issues in the past
   https://bugs.dpdk.org/show_bug.cgi?id=97
   https://bugs.dpdk.org/show_bug.cgi?id=249

  Eventually the issues got resolved in binutils via
   https://sourceware.org/bugzilla/show_bug.cgi?id=23465

  After binutils is fixed people rebuilding DPDK themselve can use
   http://patches.dpdk.org/patch/71679/
  to gain more performance while on Bionics bintuils level.

  Note: Bionic is on DPDK 17.11.x which will not get further stable release afaik. But quite often people build their own DPDK. In fact this came up as a request from Openvswitch upstream/Intel to allow such builds on Bionic.
  I'd ping those people about the bug and ask them to participate in the verification if this becomes an SRU.

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