[erlang-questions] Erlang scheduler segfault at ffffffffffffffff

Gabriele Santomaggio g.santomaggio@REDACTED
Mon May 20 21:19:49 CEST 2019

I am having the following the problem:

2019-05-06T10:46:16.413758+00:00 d98-f2-b3-c8-b8-65 kernel:
[8649388.905125] ../mm/pgtable-generic.c:33: bad pmd
2019-05-06T10:46:16.423251+00:00 d98-f2-b3-c8-b8-65 kernel:
[8649388.915722] 34_scheduler[15882]: segfault at ffffffffffffffff ip
0000000040e97113 sp 00007fcffdb7ef78 error 5

it causes a crash without erlang dump.

HIPE is enabled, do you have an idea if is related in some way to hipe?

1 - Erlang version 20.2.2
2 - 34_scheduler` is one of the erlang schedulers
3-  It is not systematic, it happens randomly
4- I have some "notice: High CPU load detected: 997.159973"  around the
5- I ended up on https://lkml.org/lkml/2017/4/10/152 I am looking if it
could be related (??!?).

( let me try also here, I have already asked on the Erlang slack channel :)

Thank you
Gabriele Santomaggio
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