Comment 7 for bug 1853494

A background worker process is crashed. dmesg line:
[110854.430928] traps: icinga2[17383] general protection ip:7f403c6f4edc sp:7f40365cfe40 error:0 in libpthread-2.23.so[7f403c6e8000+18000]
icinga use newer libboost, i checked the libbost source, just some backport changes lines.
We disable the mysql stuff -> no crash. We enable again -> crash.
I recompile mysql with this WITH_SSL -> no crash.

Here is some gdb lines:
#0 0x00007f9bc5c10edc in pthread_rwlock_unlock () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f9bbbaa158f in ?? () from /usr/lib/x86_64-linux-gnu/libmysqlclient.so.20
#2 0x00007f9bc564dfaf in rsa_get_blinding (rsa=rsa@entry=0x7f9b9c0123a0, local=local@entry=0x7f9bc0057f0c, ctx=ctx@entry=0x7f9b9413c700) at rsa_eay.c:307
#3 0x00007f9bc564f180 in RSA_eay_private_encrypt (flen=<optimized out>, from=<optimized out>,
    to=0x7f9bb41d3e08 "\222.\\.\021#\203\237\341\211\006\371\243ݕ\321"..., rsa=0x7f9b9c0123a0, padding=1)
    at rsa_eay.c:405

I dont know, is there any other apps with crash. we didnt find yet, but not using other such an app.
we temporally workaround: switch back to .27, and hold.

ps: i'm going to vacation. cannot answer