tree b96ff9b9ae8d3d87cc25ac6a5b3346773dd10fe1
parent 34835df04891a1d54394888b763af88f9476101d
author Ian Lance Taylor <iant@golang.org> 1599673211 -0700
committer Ian Lance Taylor <iant@golang.org> 1599674650 +0000

runtime: ignore SIGPROF if profiling disable for thread

This avoids a deadlock on prof.signalLock between setcpuprofilerate
and cpuprof.add if a SIGPROF is delivered to the thread between the
call to setThreadCPUProfiler and acquiring prof.signalLock.

Fixes #41014

Change-Id: Ie825e8594f93a19fb1a6320ed640f4e631553596
Reviewed-on: https://go-review.googlesource.com/c/go/+/253758
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>