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Linux can return valid Shared USM addresses below 0x700000000000. The PVC allocator assertion rejects these addresses even though ASan supports the full lower 47-bit range.
ldorau
approved these changes
Oct 12, 2026
| // RUN: %{run} not --crash %t3.out 2>&1 | FileCheck %s | ||
| // An unlimited stack selects Linux's legacy mmap layout, allowing Shared USM | ||
| // addresses below the usual PVC range starting at 0x700000000000. | ||
| // RUN: %if gpu %{ %{run} not --crash sh -c 'ulimit -s unlimited && exec "$@"' sh %t3.out 2>&1 | FileCheck %s %} |
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gpu - this only matters on PVC, so restricting it to arch-intel_gpu_pvc instead of gpu would avoid running it on devices where it doesn't test anything new.
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Linux can return valid Shared USM addresses below 0x700000000000. The PVC allocator assertion rejects these addresses even though ASan supports the full lower 47-bit range.