https://bugs.freedesktop.org/show_bug.cgi?id=78717

          Priority: medium
            Bug ID: 78717
          Assignee: dri-devel@lists.freedesktop.org
           Summary: radeon: Failed to allocate a buffer
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: mmstickman@gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: 10.1
         Component: Drivers/Gallium/radeonsi
           Product: Mesa

When you set shadows to Ultra in the recently released open source game,
Tesseract, the game will segfault with the following:

radeon: Failed to allocate a buffer:
radeon:    size      : 536870912 bytes
radeon:    alignment : 32768 bytes
radeon:    domains   : 4
radeon: Failed to allocate a buffer:
radeon:    size      : 536870912 bytes
radeon:    alignment : 32768 bytes
radeon:    domains   : 4
radeon: Failed to allocate a buffer:
radeon:    size      : 536870912 bytes
radeon:    alignment : 32768 bytes
radeon:    domains   : 4
radeon: Failed to allocate a buffer:
radeon:    size      : 536870912 bytes
radeon:    alignment : 32768 bytes
radeon:    domains   : 4
radeon: Failed to allocate a buffer:
radeon:    size      : 536870912 bytes
radeon:    alignment : 32768 bytes
radeon:    domains   : 4
radeon: Failed to allocate a buffer:
radeon:    size      : 536870912 bytes
radeon:    alignment : 32768 bytes
radeon:    domains   : 4
failed allocating shadow atlas!

MSAA also seems to hang the entire machine

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