crashes after upgrade to 11.1-RELEASE AMD64 / libgcc5

[Mr. Binary]

Hey!

I have upgraded from 11.0 to 11.1-RELEASE, I get constantly crashing
applications, is web browser.. this may be related to libgcc5.. any
hints how to prevent?

Firefox / Chrome / Iridium GTK, Otter QT5..

Program received signal SIGSEGV, Segmentation fault.
0x0000000806bdec19 in ?? () from /usr/local/lib/gcc5/libgcc_s.so.1
(gdb) bt
#0  0x0000000806bdec19 in ?? () from /usr/local/lib/gcc5/libgcc_s.so.1
#1  0x0000000000000000 in ?? ()

Program received signal SIGSEGV, Segmentation fault.
0x0000000806bdec19 in ?? () from /usr/local/lib/gcc5/libgcc_s.so.1

...

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