Michael Anthony Knyszek 4c943abb95 runtime: fix comments on the behavior of SetGCPercent ... Fixes for #49680, #49695, #45867, and #49370 all assumed that SetGCPercent(-1) doesn't block until the GC's mark phase is done, but it actually does. The cause of 3 of those 4 failures comes from the fact that at the beginning of the sweep phase, the GC does try to preempt every P once, and this may run concurrently with test code. In the fourth case, the issue was likely that only *one* of the debug_test.go tests was missing a call to SetGCPercent(-1). Just to be safe, leave a TODO there for now to remove the extraneous runtime.GC calls, but leave the calls in. Updates #49680, #49695, #45867, and #49370. Change-Id: Ibf4e64addfba18312526968bcf40f1f5d54eb3f1 Reviewed-on: https://go-review.googlesource.com/c/go/+/369815 Reviewed-by: Austin Clements <austin@google.com> Trust: Michael Knyszek <mknyszek@google.com> Run-TryBot: Michael Knyszek <mknyszek@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>		2021-12-07 17:46:04 +00:00
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testdata	runtime: fix comments on the behavior of SetGCPercent	2021-12-07 17:46:04 +00:00
backdoor.go
buildid_linux.go
callback_c_gc.c
callback_c_gccgo.c
callback_c.c
callback.go
cgo_linux_test.go
cgo_stubs_android_test.go
cgo_test.go	runtime/cgo: add example of Handle with void* parameter	2021-11-20 00:37:28 +00:00
cgo_thread_lock.go
cgo_unix_test.go
cthread_unix.c
cthread_windows.c
issue1435.go
issue4029.c
issue4029.go
issue4029w.go
issue4273.c
issue4273b.c
issue4339.c
issue4339.h
issue5548_c.c
issue5740a.c
issue5740b.c
issue6833_c.c
issue6907export_c.c
issue6997_linux.c
issue6997_linux.go
issue7234_test.go
issue8148.c
issue8148.go
issue8331.h
issue8517_windows.c
issue8517_windows.go
issue8517.go
issue8694.go
issue8811.c
issue18146.go
issue20910.c
issue21897.go
issue21897b.go
issue31891.c
issue42018_windows.go	cmd/cgo: add go:notinheap annotation to Windows handle types	2021-09-22 18:10:24 +00:00
issue42018.go	cmd/cgo: add go:notinheap annotation to Windows handle types	2021-09-22 18:10:24 +00:00
issue42495.go
overlaydir_test.go
pkg_test.go
setgid_linux.go
sigaltstack.go
sigprocmask.c
sigprocmask.go
test_unix.go
test_windows.go
test.go	runtime/cgo: add example of Handle with void* parameter	2021-11-20 00:37:28 +00:00
testx.c
testx.go	misc/cgo/test: remove unnecessary forward declaration	2021-11-22 18:50:19 +00:00
typeparam.go	cmd/cgo: update to handle ast.IndexListExpr	2021-10-07 18:02:14 +00:00