oneapi-src / oneapi-src/unified-memory-framework

Handle case where trackingAlloc() got OOM on umfMemoryTrackerAdd()

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Dominant language
C
Stars
98
Forks
48
Avg merge
3d 20h
Merged PRs (30d)
6

Description

Currently, we first call umfMemoryProviderAlloc() and then the umfMemoryTrackerAdd(). Ideally, we shouldn't call the provider if we run out of memory during umfMemoryTrackerAdd() so we have to reserve memory for the tracker entry at a first step.

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by tracing trackingAlloc(), umfMemoryProviderAlloc(), and umfMemoryTrackerAdd() to understand their current error paths. Verify how tracker-entry reservation and provider allocation interact under OOM, with completion defined as avoiding provider allocation when tracker insertion cannot succeed and preserving correct failure handling.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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