[erlang-questions] Erlang scheduler segfault at ffffffffffffffff
Tue May 21 13:26:28 CEST 2019
On Mon, May 20, 2019 at 9:20 PM Gabriele Santomaggio
> 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 ffff883eed530398(80000037db2008e7)
> 2019-05-06T10:46:16.423251+00:00 d98-f2-b3-c8-b8-65 kernel: [8649388.915722] 34_scheduler: 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
This is a kernel bug, plain and simple. OTP and/or HiPE _might_ do
something that triggers it, but that's just coincidental; a correct
kernel must not crash due to (unprivileged) user-space actions.
You don't say what kernel you're running, but you should consider upgrading it.
(Long shot: may also be a bug in the C compiler used to compile the
kernel, but that's extremely uncommon for vanilla distribution
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