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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

RussianNeuroMancer, thank you for reporting this and helping make Ubuntu
better. Could you please run the following command from a terminal as it
will automatically gather and attach updated debug information to this
report:

apport-collect -p xorg 1493449

Please ensure you have the package xdiagnose installed, and that you
click the Yes button for attaching additional debugging information.

When reporting bugs in the future please use apport by using 'ubuntu-
bug' and the name of the package affected. You can learn more about this
functionality at https://wiki.ubuntu.com/ReportingBugs.

** Package changed: xorg-server (Ubuntu) => xorg (Ubuntu)

** Changed in: xorg (Ubuntu)
   Importance: Undecided => Low

** Changed in: xorg (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1493449

Title:
  Crash in libexa with radeon driver

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  My previous report:
  https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1482312

  After latest xorg-server update previous crash seems like doesn't happen anymore, however there is another crash now:
  [  3184.619] failed to map pixmap: -2
  [  3184.619] (EE) 
  [  3184.619] (EE) Backtrace:
  [  3184.619] (EE) 0: /usr/bin/X (xorg_backtrace+0x4e) [0x55951956662e]
  [  3184.620] (EE) 1: /usr/bin/X (0x5595193b2000+0x1b8999) [0x55951956a999]
  [  3184.620] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7fbac39c7000+0x352f0) [0x7fbac39fc2f0]
  [  3184.620] (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (0x7fbac39c7000+0x9ff70) [0x7fbac3a66f70]
  [  3184.620] (EE) 4: /usr/lib/xorg/modules/libexa.so (0x7fbabfa92000+0x52fe) [0x7fbabfa972fe]
  [  3184.620] (EE) 5: /usr/lib/xorg/modules/libexa.so (0x7fbabfa92000+0x57b3) [0x7fbabfa977b3]
  [  3184.620] (EE) 6: /usr/lib/xorg/modules/libexa.so (0x7fbabfa92000+0x7e8f) [0x7fbabfa99e8f]
  [  3184.620] (EE) 7: /usr/lib/xorg/modules/libexa.so (0x7fbabfa92000+0x10555) [0x7fbabfaa2555]
  [  3184.620] (EE) 8: /usr/bin/X (miCopyRegion+0xdc) [0x55951954663c]
  [  3184.620] (EE) 9: /usr/bin/X (miDoCopy+0x466) [0x559519546cb6]
  [  3184.620] (EE) 10: /usr/lib/xorg/modules/libexa.so (0x7fbabfa92000+0x8345) [0x7fbabfa9a345]
  [  3184.620] (EE) 11: /usr/bin/X (0x5595193b2000+0x13f941) [0x5595194f1941]
  [  3184.621] (EE) 12: /usr/bin/X (0x5595193b2000+0xf48ec) [0x5595194a68ec]
  [  3184.621] (EE) 13: /usr/bin/X (0x5595193b2000+0xf5ef5) [0x5595194a7ef5]
  [  3184.621] (EE) 14: /usr/bin/X (0x5595193b2000+0x5818f) [0x55951940a18f]
  [  3184.621] (EE) 15: /usr/bin/X (0x5595193b2000+0x5c34b) [0x55951940e34b]
  [  3184.621] (EE) 16: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7fbac39e7a40]
  [  3184.621] (EE) 17: /usr/bin/X (_start+0x29) [0x5595193f86c9]
  [  3184.621] (EE) 
  [  3184.621] (EE) Segmentation fault at address 0x0
  [  3184.621] (EE) 
  Fatal server error:
  [  3184.621] (EE) Caught signal 11 (Segmentation fault). Server aborting

  Also dmesg is full of radeon driver related errors:
  [ 2859.128902] [drm:radeon_cs_ioctl [radeon]] *ERROR* Invalid command stream !
  [ 2859.142511] radeon 0000:00:01.0: evergreen_surface_check_linear_aligned:212 texture pitch 624 invalid must be aligned with 64
  [ 2859.142530] radeon 0000:00:01.0: evergreen_cs_track_validate_texture:827 texture invalid 0x09d81341 0x10000390 0x0a0a0000 0x00000000 0x00000004 0x8002001a

  Logs attached.

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