aa1b50e179
The LockThreadExit tests in the runtime have been observed to fail after reading /proc/self/task/<tid>/stat and blindly assuming its contents followed a specific format. The parsing code is also wrong, because splitting by spaces doesn't work when the comm name contains a space. It also ignores errors without reporting them, which isn't great. This change rewrites tidExists to be more robust by using /proc/self/task/<tid>/status instead. It also modifies tidExists' signature to report an error to its caller. Its caller then prints that error. Ignoring a non-not-exist error with opening this file is the likely but unconfirmed cause of #65736 (ESRCH). This change also checks for that error explicitly as an optimistic fix. Fixes #65736. Change-Id: Iea560b457d514426da2781b7eb7b8616a91ec23b Reviewed-on: https://go-review.googlesource.com/c/go/+/567938 Auto-Submit: Michael Knyszek <mknyszek@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Pratt <mpratt@google.com> |
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