[SR-15683] Program crashes when adding many tasks to a TaskGroup on Windows #57962
Description
| Previous ID | SR-15683 |
| Radar | None |
| Original Reporter | @MarSe32m |
| Type | Bug |
Environment
Windows, snapshot: swift-DEVELOPMENT-SNAPSHOT-2021-12-23-a.
Additional Detail from JIRA
| Votes | 0 |
| Component/s | |
| Labels | Bug, Concurrency, Windows |
| Assignee | None |
| Priority | Medium |
md5: 33cb31c018b26c413b20c4f4c1356a81
Issue Description:
When adding many tasks to a TaskGroup, the program crashes when waiting for the tasks to finish. This doesn't happen on "relatively low" values of upperBound. For example when upperBound = 2500, the code executes fine to the end and prints "Done: 2500". But when for example upperBound > 10000, the program crashes. I cannot reproduce this behavior on macOS or Linux.
@main
struct App {
static func main() async {
let upperBound = 10000
await withTaskGroup(of: Void.self) { group in
for i in 0..<upperBound {
group.addTask {
print(i)
}
}
}
print("Done:", upperBound)
}
}