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+Intermittent buggines with user mode emulation of x86-64 on aarch64
+
+QEMU Version: 5.0.0
+./configure --target-list=x86_64-linux-user --enable-user --prefix=/opt/qemu --static
+
+Testing using node_exporter from pmm-client-1.17.4-1.el8.x86_64.rpm
+
+aarch64 system is running CentOS 8 with a mainline 5.4.52 kernel built for 4KB memory pages.
+
+On aarch64 machine, invoke:
+
+./qemu-x86_64-static /usr/local/percona/pmm-client/node_exporter.x86_64 -web.listen-address=192.168.0.10:42000 -web.auth-file=/usr/local/percona/pmm-client/pmm.yml -web.ssl-key-file=/usr/local/percona/pmm-client/server.key -web.ssl-cert-file=/usr/local/percona/pmm-client/server.crt -collectors.enabled=diskstats,filefd,filesystem,loadavg,meminfo,netdev,netstat,stat,time,uname,vmstat,meminfo_numa,textfile
+
+Most of the time it will outright segfault within a few seconds, seemingly when the prometheus server polls for data.
+
+But, about once every 10 times, it will not sefault and will continue working just fine forever.
+
+The dynamically linked version of qemu (built without --static) always works without segfaulting, but it just doesn't work, the prometheus server gets no data from it. Again, once in a while it will work, but even when it doesn't work it won't segfault.
+
+This vaguely feels like a memory alignment issue somewhere, but my debug-fu is not quite strong enough to attack the problem.
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