*** This bug is a duplicate of bug 1876219 ***

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: mesa (Ubuntu)
       Status: New => Confirmed

You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to mesa in Ubuntu.

  segfault in iris_dri.so

Status in mesa package in Ubuntu:

Bug description:
  As of Ubuntu 20.04, on intel graphics with intel driver (not
  modesetting), I got segfault whenever anything tries to use GL.

  This happens unless I export MESA_LOADER_DRIVER_OVERRIDE=i965. One
  says that it does not happen with modesetting driver.

  (gdb) run
  Starting program: /usr/bin/glxgears 
  [Thread debugging using libthread_db enabled]
  Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
  [New Thread 0x7ffff17cf700 (LWP 97070)]
  [New Thread 0x7fffebfff700 (LWP 97071)]
  [New Thread 0x7ffff0fce700 (LWP 97072)]
  [New Thread 0x7fffeb7fe700 (LWP 97073)]

  Thread 1 "glxgears" received signal SIGSEGV, Segmentation fault.
  0x00007ffff6a7e1d4 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
  (gdb) where
  #0  0x00007ffff6a7e1d4 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
  #1  0x00007ffff6c42de4 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
  #2  0x00007ffff6a59e5d in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
  #3  0x00007ffff6a5aa95 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
  #4  0x00007ffff6099774 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
  #5  0x000055555555711e in ?? ()
  #6  0x0000555555556c88 in ?? ()
  #7  0x00007ffff7ace0b3 in __libc_start_main (main=0x555555556410, argc=1, 
argv=0x7fffffffe698, init=<optimized out>, fini=<optimized out>, 
rtld_fini=<optimized out>, stack_end=0x7fffffffe688) at ../csu/libc-start.c:308
  #8  0x0000555555556f0a in ?? ()

  I believe, this is a bug in mesa tracked here:

  packages versions:
  libgl1-mesa-dri:amd64                 20.0.4-2ubuntu1                     
  xserver-xorg-video-intel              2:2.99.917+git20200226-1            
  xserver-xorg-core                     2:1.20.8-2ubuntu2                   

To manage notifications about this bug go to:

Mailing list: https://launchpad.net/~touch-packages
Post to     : touch-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~touch-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to