Comment 3 for bug 1970737

Hello,

I'm adding additional information here. It seems that the issue is not related to mysql-8.0 but the kernel or qemu. After the sysbench test starts to output lines with "tps: 0.00 qps: 0.00", the command:

# ls /data/mysql

sometimes list the files, but sometimes hang.

Whatever the MySQL daemon does, it is not expected to cause a hang of the file-system for other processes. Also the command

# dd if=/dev/vdb of=/dev/null bs=512 count=1 iflag=direct

hangs, but does not show up as an outstanding storage operation in iostat (%util of /dev/vdb remains 0).

Additionally, please find in the attached file the output from:

# echo w > /proc/sysrq-trigger

I hope that this helps!

Best regards,
Nikolay Tenev