RFR: JDK-8302320: AsyncGetCallTrace obtains too few frames in sanity test

Johannes Bechberger duke at openjdk.org
Tue Feb 14 07:06:44 UTC 2023


On Tue, 14 Feb 2023 06:41:21 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Fixes the issue by applying a fix that is already implemented in PPC.
>
> src/hotspot/cpu/x86/frame_x86.cpp line 72:
> 
>> 70: 
>> 71:   // unextended sp must be within the stack
>> 72:   if (!thread->is_in_full_stack_checked(unextended_sp)) {
> 
> I'm not at all sure this relaxation is valid. What are you basing this on?

The test fails without this relaxation and the relaxation has been used on PPC to solve a similar issue a few years back.

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PR: https://git.openjdk.org/jdk/pull/12535


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