7eeb0a188e
The failures in #70288 are consistent with and strongly imply stack corruption during fault handling, and debug prints show that the Go code run during fault handling is running about 300 bytes above the bottom of the goroutine stack. That should be okay, but that implies the DLL code that called Go's handler was running near the bottom of the stack too, and maybe it called other deeper things before or after the Go handler and smashed the stack that way. stackSystem is already 4096 bytes on amd64; making it match that on 386 makes the flaky failures go away. It's a little unsatisfying not to be able to say exactly what is overflowing the stack, but the circumstantial evidence is very strong that it's Windows. Fixes #70288. Change-Id: Ife89385873d5e5062a71629dbfee40825edefa49 Reviewed-on: https://go-review.googlesource.com/c/go/+/627375 Reviewed-by: Ian Lance Taylor <iant@google.com> Auto-Submit: Russ Cox <rsc@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> |
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