RFA: 8168996: C2 crash at postaloc.cpp:140 : assert(false) failed: unexpected yanked node

Andrew Dinn adinn at redhat.com
Fri Jan 8 09:32:26 UTC 2021

Hi Felix,

On 08/01/2021 06:17, Yangfei (Felix) wrote:
> Hi,
>    I am witnessing a known issue [1] when running jcstress test with 8u aarch64 fastdebug build.
>    This issue can be easily reproduced during a jcstress run on my aarch64 linux server.

This certainly looks like the right fix for the right 'known issue' i.e. 
the one reported in JDK-8168996. However, I don't really understand how 
you came to the conclusion that 8168996 was the issue that is causing 
the problem, given that the bug is private.

Are you basing that assumption on the brief description in the email 
thread? Or the fact that the fix makes the problem go away? Or both? Or 
maybe something else?

I would prefer simply to approve this patch but it would help to have 
more background if you have any.


Andrew Dinn
Red Hat Distinguished Engineer
Red Hat UK Ltd
Registered in England and Wales under Company Registration No. 03798903
Directors: Michael Cunningham, Michael ("Mike") O'Neill

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