Description of problem:
I logged into my user account.
This system is mostly a server accessed via SSH. I sometimes log into a GUI session.
Because it is a server, overcommit is disabled. I believe this is part of the problem since what I've read about "gigacage" it wants 100 GB of virtual RAM.
It should have a fallback plan because it cannot have 100 GB.
Version-Release number of selected component:
runlevel: N 5
Thread no. 1 (10 frames)
#0 Gigacage::<lambda()>::operator() at /usr/src/debug/webkitgtk4-2.20.1-1.fc27.x86_64/Source/bmalloc/bmalloc/Gigacage.cpp:155
#1 std::__invoke_impl<void, Gigacage::ensureGigacage()::<lambda()> > at /usr/include/c++/7/bits/invoke.h:60
#2 std::__invoke<Gigacage::ensureGigacage()::<lambda()> > at /usr/include/c++/7/bits/invoke.h:95
#3 std::<lambda()>::operator() at /usr/include/c++/7/mutex:672
#5 std::<lambda()>::_FUN(void) at /usr/include/c++/7/mutex:677
#6 __pthread_once_slow at pthread_once.c:116
#7 __gthread_once at /usr/include/c++/7/x86_64-redhat-linux/bits/gthr-default.h:699
#8 std::call_once<Gigacage::ensureGigacage()::<lambda()> > at /usr/include/c++/7/mutex:684
#9 Gigacage::ensureGigacage at /usr/src/debug/webkitgtk4-2.20.1-1.fc27.x86_64/Source/bmalloc/bmalloc/Gigacage.cpp:108
#10 bmalloc::Heap::Heap at /usr/src/debug/webkitgtk4-2.20.1-1.fc27.x86_64/Source/bmalloc/bmalloc/Heap.cpp:58
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Thanks for a bug report. Please see bug #1564970 for further information how to workaround the crash. As you do not use GUI part of the system often, I'd say you can disable evolution-alarm-notify from the auto-start applications too. Without that you won't get notifications about upcoming events (the reminders for those events), which may or may not be a problem for you.
*** This bug has been marked as a duplicate of bug 1564970 ***