------- Comment From i...@de.ibm.com 2021-06-01 09:37 EDT-------
Here is a small test that doesn't require installing extra tools or building
code:
echo "r:bash_readline /bin/bash:0x$(nm -D /bin/bash | awk '/T readline$/ {print
$1}')" >/sys/kernel/debug/tracing/uprobe_events
echo 1 >/sys/kernel/debug/tracing/events/uprobes/bash_readline/enable
cat /sys/kernel/debug/tracing/trace
With the unfixed qemu you will lose your shell (provided it's bash)
after step 2.
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https://bugs.launchpad.net/bugs/1929926
Title:
[UBUNTU 21.10] qemu: target/s390x: Fix translation exception on
illegal instruction
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