[lworld] Integrated: 8252854: [lworld] Buffering in C1 entry can trigger safepoint before nmethod entry barrier has been executed

[Tobias Hartmann]

On Mon, 7 Sep 2020 09:01:55 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

> The runtime call to buffer scalarized inline type arguments in the C1 entry points can safepoint before the entry
> barrier of the corresponding nmethod has been executed. As a result, oops in the nmethod might be bad and the GC
> crashes in 'nmethod_oops_do'. We should simply execute the entry barrier before calling into the runtime.

This pull request has now been integrated.

Changeset: 963ed688
Author:    Tobias Hartmann <thartmann at openjdk.org>
URL:       https://git.openjdk.java.net/valhalla/commit/963ed688
Stats:     9 lines in 1 file changed: 2 ins; 7 del; 0 mod

8252854: [lworld] Buffering in C1 entry can trigger safepoint before nmethod entry barrier has been executed

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PR: https://git.openjdk.java.net/valhalla/pull/180