Im working to finish a statistical analysis project using a large dataset and an SAS program called JMP. I'm using an old version of the program (8.0.2) which I cannot update because of expense. (I will eventually receive new stat software from my new employer, but need to finish this project first.) JMP occasionally hangs on high processor loads with rolling beachball and unresponsive windows. I save my work a lot, and am muddling through, but there's a weird variation on the usual behavior that I haven't seen before. Once it hangs, I can kill JMP from the Terminal or Activity Monitor, but JMP's open windows stay on the screen. JMP is truly dead-- it disappears from the menubar and it's gone from Activity Monitor. It doesn't seem to spawn any daughter processes (at least none that are evident in the heirarchical view in Activity Monitor). I can restart it, but the new instance doesn't seem to recoqnize the old windows, which persist alongside new windows. They can be dragged around, but can't be minimized or closed. Mousing over them gives me the beachball. Everything else seems to behave normally. The only way to get rid of the windows, though, is to reboot, which I can do normally.
My question, entirely in the interest of speeding my workflow, is how do I kill these zombie windows short of reboot? I tried restarting the Finder with no effect. "sudo kill -9 windowserver" just reboots. Is there anything short of that?
For extra credit, one additional weird symptom is that Top (run in Terminal) doesn't display results when JMP is hung in this way. I can run it, it seems to be active, but it doesn't display any text. Activity Monitor and Menu-> Force Quit display active programs/processes correctly.
Try setting up another admin user account to see if the same problem continues. If Back-to-My Mac is selected in System Preferences, the Guest account will not work. The intent is to see if it is specific to one account or a system wide problem. This account can be deleted later.
If the problem is still there, try booting into the Safe Mode. Shut down the computer and then power it back up. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. When you reboot normally, the initial reboot may be slower than normal. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application uninstaller. For each disable/delete, you will need to restart if you don't do them all at once.
A lot of zombies are invading your home, forget weapons because your only defense is an arsenal of 49 zombie-zapping plants. Use peashooters, wall-nuts, cherry bombs and many more plants to annihilate hordes of 26 types of zombies before they reach your house.
Use your garden to plant all kind of plants, each one of them with different features, they explode, fire, double fire, freeze and more. Choose the ones you need, grow sunflowers and use the sun to earn points to grow more plants. Be careful, each zombie has its own special skills, so you have to think the plant that will kill them faster.
From time to time, your crazy neighbor will help you and will tell you some tricks. Each time you pass a level, you'll gain a new kind of plant, and the further you go, the more zombies will attack you.
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In my work at Tanium I do a bit of debugging and performance analytics. Over the last 2-3 years, a LOT of this has centered around how Windows systems get slower and slower over time. This has been a common complaint/statement of ridicule/FUD since I started my career in IT 26 years ago in fact.
Ok. system specs: AMD 5900x, 64GB of 3200Mhz RAM, Nvidia 3090 FE, boot drive is a 2TB PCI4 NVME drive. I have a total of 9 SSDs and 3 NVME drives. I also have spinners for cold storage, USB3.1 attached larger spinners. This is not a poorly performant system, or RATHER, it has no real excuse to be a poorly performant system. So when I opened ProcessExplorer tonight to figure out why I had process ID counts above 100k (a zombie process symptom) and it HUNG, over and over trying to render screen updates, I knew something was bad.
Great post Jeff. I would beg to differ about it being a MS fault, just because it usually is. However, this is a very enlightening concise article, and helps confirm my suspicions over the razer sw that my kids seem to hold in such high esteem.
Thank you
In work I'm execute remote commands by SSH. I noticed that the execution such teams - perhaps the reason zombies.Because after work without having to run the commands, the process is terminated immediately.
Doing a mouseover of the icon (only while the Anki program is running) causes live thumbnails of all open Anki windows to appear just above the toolbar, in particular the main Anki window (Decks, Add, Browse, Stats, Sync).
The cmd giving me error The process cannot access the file because it is being used by another process. after the process fails and I can see the zombie in task manager. The file in the task manager is soffice.bin
I realize this no to be an answer, but in case you cannot manage to provide the repro document, you might want to debug it yourself - Building on Windows might help you (note IDE integration bits). Also this could be of some help.
Now firstly, just gonna rule out any of the 'smart zombie' stuff, I would never watch any zombie film that has memory-retaining or tool-using zombies in it simply because I find it stupid, it doesn't and will not make sense to me no matter what anyone tries to say.
So let's look at the zombies in Project Zomboid, where they will see you inside a building and walk towards the windows or doors (why don't they all push up against the walls?), but they will stop at the window/door and stand there, repeatedly bobbing back and forth trying to smash through the window, however doing this seems like it would require some extent of thought processing:
Surely a zombie's thought process should simply be to see, chase and eat people, they shouldn't have the ability to know that there is a window in front of them, they should simply attempt to walk through it, effectively pressing themselves up against the glass.
Windows would still smash, however I'd imagine that a single zombie wouldn't be able to break through a window by himself, there would need to be a few pressing against it, using their body weight to break through, rather than them consciously doing it. Now this may just be due to the animation they have when breaking in, but it does bug me a bit.
The same applies for zombies that vault over fences and through the windows, I don't see how this would be possible, they need to trip/stumble over an obstacle if it is low enough, or get stuck against it until their sheer weight breaks through it. I don't like how they seem to posses the same motor skills as you do.
I also don't think it's so weird for them to want to get inside a house looking for flesh. A lot of zombies wander around without a specific purpose, so why not want to wander inside a house as well as anywhere? Maybe they saw a shadow reminding of a person inside (maybe even their own shadow) or a rat making some noise in there. I've never really been bothered with this, but I can understand if you miss a specific "behaviour" implant that they lack. In sandbox settings you can change their behaviour a lot too, example; no memory and path finding behaviour.
If you throw away all mental faculty from the lore, they would be comatose and unresponsive to everything. A zombie does indeed still have a thought process, and you can argue until you are blue about what is realistic when it comes to a walking dead person. In the end it is all impossible. So might as well give them behaviour that won't result in them just laying on the carpet and lawn like catatonic people.
If it is a general lore-type question then you have to look towards the Romero movies. It is shown, and stated, in the movies that they have some lingering memories of life. This is why they are attracted to light, gather in malls and other shopping districts, and sometimes even return to where they lived, or worked. Over all, thought, they are very very limited in this capacity. Higher brain functions are gone and it is mostly base instinct that drives them.
This runs in-line with another question often asked. Why do they want to eat people and nothing else? Well, again you have to go back to Remero and the original Night of the Living Dead. There is a whole scene were they are actually shown eating bugs, mice and other things as well as the remains of people who were blown apart. So, they just see most things as food. One would assume, though, that they can smell the difference between good (live) food and rotting zombies.
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