I'm getting a consistent I/O hang every time I try to securely wipe any of my drives (big or small ones, USB flash disk / Hard disk / SSD) with the combination of cryptsetup and dd: 1) the moment I hit Enter on this command cryptsetup open --type plain -d /dev/urandom /dev/sde w1 I get the first BUG: using smp_processor_id() in preemptible [00000000] code: modprobe/1032 in dmesg (line 1054 of dmesg.out) 2) then as I proceed with dd if=/dev/zero of=/dev/mapper/w1 bs=64K status=progress I gradually get the rest of the errors up until dd (along with all kworker/u*) enters a D state (displayed by top.out). Finally, the system cannot even poweroff without hard-pressing the button for a few seconds. I was running Arch Linux LiveUSB on the latest 4.19.8.arch1-1 kernel but I had the same thing happening on 4.19.4.arch1-1 as well. I repeatedly performed the exact same steps with a CentOS 7 LiveUSB running on a 3.10.x kernel and it worked flawlessly every time. Motherboard is a Supermicro Super Server/A2SDi-8C+-HLN4F, BIOS 1.1a 09/18/2018 with Intel Atom C3758. Attached you will find: 1) "dmesg -H" output 2) "top -n 1 -o +S" output 3) and the commands involved in reproducing the issue
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top.out
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cmdline.out
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dmesg.out
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