Instability after loading a saved configuration

[Paradroyd]

I can boot MIST in it's default configuration (whatever that configuration is KS3.1, KS1.3 any memory configuration) and it works as expected, but if I load an alternate configuration, or even the same default configuration (that I was just running with no issue), if I touch the space bar or return key, after a few seconds, the MIST will reboot. After it reboots, touching space or return will reboot it again. It just silently reboots. There's no guru, and no unusual lights on the MIST.

The really odd thing is that when it's just rebooted in this state, if I press the middle button on the MIST or F12, nothing will happen for the first two presses of either, but on the third press, the menu will come up as normal. Once this happens, pressing space or return will no longer cause the MIST to reboot and the MIST seems to act normally for the rest of that session.

I'm running the latest 1.2 core with the latest firmware.

[Paradroyd]

It might be worth noting that "Instability" probably isn't the right word, as once you see what's happening, it's pretty consistent and predictable.

Since posting this, I talked someone else through reproducing it on their MIST and confirmed that they were seeing the same behavior that I was. I've also confirmed that the issue exists in version 1.1 of the core as well.

[rkrajnc]

Hi,

thanks for the bug report, nice find!

I noticed that I sometimes have to press F12 multiple times so it is registered, I thought it was just my keyboard acting up. Looks like some keyboard state or keys get latched somewhere, either in the ARM firmware or the FPGA core. I'll check it out.

[Paradroyd]

No problem. This one has been around for a long time, apparently. Like you I've been seeing what seemed like MIST intermittently not responding to F12. I didn't figure out pretty recently what was really happening.

For what it's worth, after a configuration change mine always throws away (or more like, does something else) with the first two F12 keypresses, or MIST hardware rightmost button presses. It always responds on the third press. Doesn't seem to be related to specific keyboard hardware either , as I've used several. (Which I guess should be obvious since it affects the 3rd front panel button too).

Thanks for looking into it (and for all the work you do on this)!