[Bug 1673956] Re: Ubuntu 16.04 appears to be missing static TLS glibc fix

Brian Murray brian at ubuntu.com
Mon Mar 20 15:20:31 UTC 2017


** Package changed: ubuntu => glibc (Ubuntu)

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Title:
  Ubuntu 16.04 appears to be missing static TLS glibc fix

Status in glibc package in Ubuntu:
  New

Bug description:
  The following static TLS glibc fix appears to be missing from Ubuntu
  16.04 :

  https://sourceware.org/bugzilla/show_bug.cgi?id=17620

  Any idea when the fix to utilize a variable length static TLS list
  will be incorporated?

  Current versions of MATLAB (2016a, 2016b, 2017a) will fail to load
  hardware graphics library dependencies (glX for example) during MATLAB
  initialization.  The issue continues to occur with recent NVIDIA
  drivers (36x, 37x).  The problem appears to be due to the static TLS
  slots being filled up prior to the initialization of the MATLAB
  graphics system.  No slots are available by the time the graphics
  initialization occurs.  As a result, the MATLAB graphics
  initialization fails.

  Workarounds of forcing graphics initialization earlier are possible,
  but ideally the glibc fix should be incorporated (if it hasn't
  already) to eliminate the use of a fixed number of static TLS slots.

  Thanks!

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