# System Lock

**URL:** <https://forums.suse.com/t/system-lock/22899>\
**Category:** SLED Configure-Administer\
**Created:** [July 28, 2012, 9:46pm UTC](https://forums.suse.com/t/system-lock/22899 "2012-07-28T21:46:33Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![scottjsn](https://avatars.discourse-cdn.com/v4/letter/s/8baadc/32.png) [@scottjsn](https://forums.suse.com/u/scottjsn)\
**Post date:** [July 28, 2012, 9:46pm UTC](https://forums.suse.com/t/system-lock/22899/1 "2012-07-28T21:46:33Z")

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Running SLED 11. RAM: 2 GB SWAP: 16 GB.

I found the system got locked from time to time when I opened multiple applications such as browser windows, word doc, terminal screen, file manager, and web application server.

When this happened I went to check the RAM usage and saw only 1.3 GB out of 1.9 GB in use, and the Swap was 0.2 GB out of 16 GB in use. That means there is still some free memory available. Then why did the system get locked?

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**Author:** ![system](https://us1.discourse-cdn.com/flex022/uploads/suse/original/2X/5/5012ba89e3ffb5220dac47d5ea0ba032e2fe1cb6.png) [@system](https://forums.suse.com/u/system)\
**Post date:** [July 29, 2012, 8:57am UTC](https://forums.suse.com/t/system-lock/22899/2 "2012-07-29T08:57:40Z")

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If by ‘locked’ you mean it hung and never returned, then RAM shortage is  
likely not your problem since even if you were out of RAM and your  
system was using extremely-slow swap your box would eventually respond.

Good luck.

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<div class="post-metadata">

**Author:** ![say\_bye911](https://avatars.discourse-cdn.com/v4/letter/s/8edcca/32.png) [@say\_bye911](https://forums.suse.com/u/say_bye911)\
**Post date:** [September 8, 2012, 10:08am UTC](https://forums.suse.com/t/system-lock/22899/3 "2012-09-08T10:08:40Z")

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its happen alot of time with me and i dont know why  
only i saw the Hard Disk lamb on .  
but the system does not respond until i restart the system

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**Author:** ![Bob-O-Rama](https://avatars.discourse-cdn.com/v4/letter/b/77aa72/32.png) [@Bob-O-Rama](https://forums.suse.com/u/Bob-O-Rama)\
**Post date:** [September 9, 2012, 6:37am UTC](https://forums.suse.com/t/system-lock/22899/4 "2012-09-09T06:37:52Z")

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If the HD light is on, its doing “something” - a hard lock up on Linux most usually indicates a hardware related cause. When its hung, can you use num lock, caps lock?

– Bob