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#1 2013-11-26 03:41:20

zanny
Member
Registered: 2012-10-05
Posts: 70

Untracable Memory Leak

So without counting disk caching, right now my system is sitting at 12G of 16G memory.

-/+ buffers/cache:      12404       3327

After an uptime of...

22:41:34 up  2:07,  6 users,  load average: 1.16, 1.00, 1.20

Top, ordered by resident memory, is as follows:

7543 zanny     20   0 2007092 574732  57096 S   2.7  3.6   0:41.75 firefox                                                           
3713 zanny     20   0 5139796  192972  55432 S   1.0  1.2   0:24.31 plasma-desktop                                                   
7442 zanny     39  19  494184  147084   7208 S   0.0  0.9   1:07.46 virtuoso-t                                                       
3570 root        20   0  486056  120432  91096 S   3.3  0.7   3:27.10 X                                                                 
3698 zanny     20   0 3091936  113580  36304 S   1.3  0.7   0:36.86 kwin_gles                                                         
7399 zanny     20   0 1780552   59904  27980 S   0.7  0.4   0:06.42 ksysguard                                                         
4049 zanny     20   0  480468   50680  23296 S   0.3  0.3   0:05.50 konversation                                                     
4034 zanny     20   0  828200   41116  19764 S   0.0  0.3   0:00.95 krunner                                                           
6964 zanny     20   0  564436   38060  24336 S   2.3  0.2   0:04.39 konsole                                                           
3666 zanny     20   0 1564060   33012  18432 S   0.0  0.2   0:09.34 kded4

While writing this post, memory consumption went up another 500MB. Without restarting, the system will crash consistently from OOMing after running through 16GB ram + 16GB swap in around 4 hours.

Some pertinent info about the system that might relate to driver leaks or glitches:

  • The chipset is z87, the cpu is a 4770k, and it runs off the IGPU with the Intel Mesa driver

  • It has 3 hard drives, two btrfs and one ext4, which has a swap file on it.

  • It has a crappy broadcom wifi NIC onboard that only works with the wd driver, but other than that only peripherals are HID usb devices

How else can I profile what is consuming all this memory? The combined memory usage of all these processes is under 3G, so something is leaking badly elsewhere. My system is effectively unusable like this, though.

Last edited by zanny (2013-11-26 03:46:48)

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#2 2013-11-26 03:45:06

cfr
Member
From: Cymru
Registered: 2011-11-27
Posts: 5,661

Re: Untracable Memory Leak


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#3 2013-11-26 03:48:54

zanny
Member
Registered: 2012-10-05
Posts: 70

Re: Untracable Memory Leak

Yes, that seems to be the same issue, I posted my findings over there, thanks.

Last edited by zanny (2013-11-26 03:53:05)

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