[47.0.x] Backport some component-model-async fixes#13924
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alexcrichton merged 3 commits intoJul 21, 2026
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…#13871) This commit fixes two (known) issues with call hooks. The first is a long-standing issue where when Wasmtime yielded due to fuel or epochs the call hooks were not invoked. If hosts were using call hooks to track time executed in a guest, for example, then that would lead to inaccuracies. The second is with component-model-async fiber switches weren't correctly accounted for in terms of the call hook machinery which could lead results to get mixed up. The fix for both here is the same which is to sink the invocation of call hooks far down into the stack such that they cannot be forgotten when the guest exits to the host. This moves manual invocations, for example, on host functions to instead one central location that handles both host functions and libcalls. Closes bytecodealliance#13870
…#13914) An async-delivered event caused `future.drop-writable` to raise a trap when it shouldn't because the trap notification was delivered.
alexcrichton
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fitzgen and
pchickey
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a team
July 21, 2026 16:21
pchickey
approved these changes
Jul 21, 2026
alexcrichton
merged commit Jul 21, 2026
468c685
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bytecodealliance:release-47.0.0
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This is a backport of #13871 and #13914 for issues that have blocked the update to 47.0.0 in Spin. I plan on making a 47.0.2 release after this merges.