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[PR #10599] sched: fix race leading to orphaned runners #13292

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opened 2026-04-13 00:23:04 -05:00 by GiteaMirror · 0 comments
GiteaMirror commented 2026-04-13 00:23:04 -05:00
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Original Pull Request: https://github.com/ollama/ollama/pull/10599

State: closed
Merged: Yes

If a model is loading, and the request context is canceled during the load by a client closing the connection, and another request is inbound for the same model with a different configuration (context size, etc.) thus requiring a reload, two unload events can be in flight. The first shuts down the original model load, but the second one caused the loss of the new reloading runner reference, thus triggering the leak.

The primary fix is detecting the duplicate unload and ignoring the second instance. The load routine is also hardened to ensure we detect clobbering an already present runner and unload it with a warning.

Fixes #10433

**Original Pull Request:** https://github.com/ollama/ollama/pull/10599 **State:** closed **Merged:** Yes --- If a model is loading, and the request context is canceled during the load by a client closing the connection, and another request is inbound for the same model with a different configuration (context size, etc.) thus requiring a reload, two unload events can be in flight. The first shuts down the original model load, but the second one caused the loss of the new reloading runner reference, thus triggering the leak. The primary fix is detecting the duplicate unload and ignoring the second instance. The load routine is also hardened to ensure we detect clobbering an already present runner and unload it with a warning. Fixes #10433
GiteaMirror added the pull-request label 2026-04-13 00:23:04 -05:00
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Reference: github-starred/ollama#13292
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