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Bug #10811

boot hang under KVM Linux in kb8042

Added by John Levon 7 months ago. Updated 7 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Start date:
2019-04-17
Due date:
% Done:

0%

Estimated time:
Difficulty:
Medium
Tags:
needs-triage

Description

https://movementarian.org/~movement/kb8042.png

If I boot under KVM Linux (1:2.11+dfsg-1ubuntu7.12) and use the text console (non-EFI), it hangs
during bringing up the other CPUs. It seems like (though I can't be sure) the above thread
is stopping operation. We're in kb8042_send_and_wait() after we apparently received a key
that we then translated into needing a kb8042_setled(). I didn't press caps lock or anything...

History

#1

Updated by John Levon 7 months ago

I made sure to not touch the (emulated) PS/2 mouse or keyboard. This is via SPICE on virt-manager BTW.
We still see this apparent hang. So this seems like a spurious interrupt with scancode = 0x3a, (caps lock)
kb8042_process_key is seeing 0x1e.

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