I've seen the bug just once, since upgrading to Ubuntu 14.04. I have a 4-core CPU and HUD was consuming 100% of one of the cores; after a while it switched to consuming 100% of a different core. I noticed it because the fan started running quite fast, intermittently. After restarting Ubuntu the issue has not recurred. However when/if it happens, I do consider it critical. A user on a single-core machine would have a tough time debugging the problem with the CPU at 100%. I'm not exactly a Ubuntu geek but if someone wants to instruct me how to capture useful debug info, I could print it out and leave it next to the computer in case it happens again.
I've seen the bug just once, since upgrading to Ubuntu 14.04. I have a 4-core CPU and HUD was consuming 100% of one of the cores; after a while it switched to consuming 100% of a different core. I noticed it because the fan started running quite fast, intermittently. After restarting Ubuntu the issue has not recurred. However when/if it happens, I do consider it critical. A user on a single-core machine would have a tough time debugging the problem with the CPU at 100%. I'm not exactly a Ubuntu geek but if someone wants to instruct me how to capture useful debug info, I could print it out and leave it next to the computer in case it happens again.