Mavericks running out of "Application Memory" with 32 GB of RAM

Absolutely.. same issue here. 32gb of Ram and what worked yesterday does not today running Mavericks. Same error... running out of application memory.

I'll be monitoring this thread to see if anyone has a fix... or a lead to another thread in which this problem is discussed and hopefully solved.

The error, for me anyway.. is fatal... I could not fix it without a reboot of my computer. It must have something to do with the new memory compression. Can one shut that off? - JamesJM

I'm not seeing any problems with my gmail accounts, nor any of the other accounts. Glad to hear it worked for you, however. You said this was 'part of the fix'... what was the other part?

I'm not sure when this is occurring... it's happened to me twice and both times when I was away from the computer. Possibly after the computer had gone to sleep, I'm not sure at this time.

I read some VERY preliminary speculation on other forums that CALENDAR is the culprit. I can't say... but I do know that both times that it's happend to me, "THUS FAR", was when I had Calendar open and it has NOT, as yet, happened with Calendar closed. - JamesJM

I having this darn issue also. This is so annoyingly frequent that it's become far to time consuming to do the simplest of tasks. Ie email

Same here. Late-2012 27" iMac with 32GB RAM, Core i7 processor. Left running overnight. NO Google accounts registered on this machine. iCloud yes, a private Exhange server account yes. 'out of application memory'. Unable to tell which, if any, application caused this. But will analyze next time it occurs.

Yes, I am having this problem too. It never occurred on Lion or Mountain Lion. Not once.

This problem does not "appear" to be tied to any one program. Your experiences above are either Apple Mail (app) related or Caledar (app) related. I do not run either apps on my system, but use Outlook for Mac. The memory overrun error does occur most frequently when the system is idle (or when the screen saver is running), but I have had it stop in the middle of browsing or doing some other work.

I ran away from MS because of the BSOD. Has Apple hired some ex-MS coders for the new OS? They may have brought some bad habits with them!

If I had to guess which "update" Apple made that is causing this problem (since we're all running Mail programs), is the new Tag feature (which I hate). And there is no option to turn it off! Therefore no short term fix.

In any case, this seems like it is a fix that Apple has to take care of ASAP. Rebooting 4-5 times a day is a sure fire way to **** off your customer base.

I had the same problem and had to restart my computer literally every 30 minutes or so (after first having to force quit almost every program I had open in order to just restart -- i.e. 3-5 minutes of time every time just to restart.) My IMAC is just 8 months old and I have 3T Fusion ROM and 16GB RAM. Had no problem with this issue until I upgraded to Maverick.

I called Apple support and they had me do a "refresh" of the operating system. 1) turn computer off; 2) unplug power cord at back of computer and keep out for at least 15 seconds and then reinsert; 3) hold down simultaneously "Command" and "r" with the left hand AND "option" and "p" with the right hand IMMEDIATELY after pushing the power button on the back of the IMAC; 4) keep holding the buttons down thru the intial gray screeen, then screen goes black, and then screen turns gray again -- then you can release the buttons; 5) my IMAC then displayed my usual sign-in/password I see when I normally turn on the computer; 6) sign in.

This is supposed to "refresh" (not reset) the RAM memory, etc.

So far, it's been several hours and I have not had the problem recur yet. If it does I will call Apple back and let this thread know what they tell me to do next. If I don't get back to the thread, then this will have fixed the issue for me.

OK, I found mine. My Mavericks machine is used for software development. There was a Ruby program stuck in an infinite loop, slowly allocating memory and never relinquishing it. Kill the program == happy iMac.

This tells me two things. (1) The memory management in Mavericks is a LOT smarter and behaves SIGNIFICANTLY differently than earlier versions of OSX. (2) It is highly likely that the problems other people are experiencing are very real, and caused by programs that have memory leaks, which are now causing critical problems because of the way Mavericks is allocating available RAM. I think Mavericks is doing a very sophisticated allocation, but this is revealing perhaps latent issues in application layer code.

When I diagnosed the problem on my iMac, the offending Ruby instances were quite visible in Activity Monitor. So maybe the aberrant behavior of other offending programs would be visible as well?

Same for me, 32 GB of RAM Late 2012 iMac. Safari seems to be the app that is brining down the system. Runs out of Application memory and competely freezes the Mac requireing a power off with the power button.

My similar problem seems to be related to the calendar application and more precisely the sync with my google calendar. If I turn of this feature the problem disappears.

There seems to be a serious flaw in this functionality. Hopefully Apple can fix it quickly!

Gert

My Mac Pro 16GB RAM with Maverick is having the same issue. If I leave it running for more than a day, all my memory will be chewed up by either "kernel_task" or "devicemgrd". Usually kernel_task gets up to 10, 11 GB before I reboot. If I leave it running, I'll get "Application Memory used up". All Apps are non-responsive and I have to kill them.

Sounds like people here are all having the same memory issue, only with different programs stealing the memory.

As I sit here, I can watch my Memory Pressure angle upwards from Green, to yellow, to Application Memory Gone!

Please fix soon.

OK -- what the Apple guy had me to do above worked for about half a day but the next day I restarted the IMAC and had the same problem again, only worse. Will be calling Apple again.

Now I have to reboot about every half hour and have set my autosave to save every minute so I don't lose another document. My PC at its worst was better than this!!! This defeats the whole purpose for spending a lot more money to swtich to an Apple computer from a PC -- reliability -- and if they don't fix it soon then Apple's entire business model is going to vanish. MY PC never crashed every 30-60 minutes -- so why did I spend $3K on an IMAC??? Anyone know how to go back to 10.8 after DOWNgradingto Maverick 10.9!!!!!!???

Try running http://www.etresoft.com/etrecheck to generate a system report, it could help compare similarities or spot potential third party software issues.

Post the reports here.

monstamash, the startup command you performed is called 'zapping' or resetting the PRAM. PRAM is where Speaker volume & other pre startup config is stored. Basically hold the keys for 2 startup chimes.

https://support.apple.com/kb/HT1379