Increase minimum available stacks when fuzzing wast tests (#11263)

alexcrichton · web-flow · commit 90ab7916a996 · 2025-07-16T23:31:29.000Z
This fixes a fuzz failure with the new async tests which require more
than one stack.
diff --git a/crates/fuzzing/src/generators/config.rs b/crates/fuzzing/src/generators/config.rs
@@ -229,6 +229,7 @@ impl Config {
             pooling.component_instance_size = pooling
                 .component_instance_size
                 .max(limits::CORE_INSTANCE_SIZE);
+            pooling.total_stacks = pooling.total_stacks.max(limits::TOTAL_STACKS);
         }
 
         // Return the test configuration that this fuzz configuration represents
diff --git a/crates/test-util/src/wast.rs b/crates/test-util/src/wast.rs
@@ -25,6 +25,7 @@ pub mod limits {
     pub const CORE_INSTANCES: u32 = 900;
     pub const TABLE_ELEMENTS: usize = 1000;
     pub const CORE_INSTANCE_SIZE: usize = 64 * 1024;
+    pub const TOTAL_STACKS: u32 = 10;
 }
 
 /// Local all `*.wast` tests under `root` which should be the path to the root

Original file line number	Diff line number	Diff line change
`@@ -229,6 +229,7 @@ impl Config {`
`229`	`229`	`pooling.component_instance_size = pooling`
`230`	`230`	`.component_instance_size`
`231`	`231`	`.max(limits::CORE_INSTANCE_SIZE);`
	`232`	`+ pooling.total_stacks = pooling.total_stacks.max(limits::TOTAL_STACKS);`
`232`	`233`	`}`
`233`	`234`
`234`	`235`	`// Return the test configuration that this fuzz configuration represents`
Original file line number	Diff line number	Diff line change
`@@ -25,6 +25,7 @@ pub mod limits {`
`25`	`25`	`pub const CORE_INSTANCES: u32 = 900;`
`26`	`26`	`pub const TABLE_ELEMENTS: usize = 1000;`
`27`	`27`	`pub const CORE_INSTANCE_SIZE: usize = 64 * 1024;`
	`28`	`+ pub const TOTAL_STACKS: u32 = 10;`
`28`	`29`	`}`
`29`	`30`
`30`	`31`	/// Local all `*.wast` tests under `root` which should be the path to the root