| commit | bb59a1360a9e6c2d32a59461da56e9bc3a5703ef | [log] [tgz] |
|---|---|---|
| author | Richard Miller <miller.research@gmail.com> | Mon May 18 09:34:17 2020 +0100 |
| committer | David du Colombier <0intro@gmail.com> | Mon May 18 09:13:38 2020 +0000 |
| tree | 8fd200e46f627755ace46f9049da9111be560a2b | |
| parent | 2b70ffe9307c0992e28513ba25081d767b5937b2 [diff] |
runtime: don't enable notes (=signals) too early in Plan 9 The Plan 9 runtime startup was enabling notes (like Unix signals) before the gsignal stack was allocated. This left a small window of time where an interrupt (eg by the parent killing a subprocess quickly after exec) would cause a null pointer dereference in sigtramp. This would leave the interrupted process suspended in 'broken' state instead of exiting. We've observed this on the builders, where it can make a test time out waiting for the broken process to terminate. Updates #38772 Change-Id: I54584069fd3109595f06c78724c1f6419e028aab Reviewed-on: https://go-review.googlesource.com/c/go/+/234397 Run-TryBot: David du Colombier <0intro@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David du Colombier <0intro@gmail.com>
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