Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I use Mint 13 Maya with mainline kernel 3.6.3 for Ubuntu Quantal on my Asus P53E Notebook.

I use zram swap that comes with the package zram-config.

I've noticed that using it the system to hangs at random moments, especially (but not always) under high memory loads. Even when 90% of memory is free (and exactly no swap in use) the notebook cannot survive in a powered state a night (8 hours).

This "hanging" behaviour is quite literal: the computer respond to exactly nothing. No mouse movement, capslock/numlock leds don't respond to the corresponding keys. Even the sysrq combinations don't work (like "BUSIER"). (I don't remember if dimming the display works). After the hard restart, there is no trace of anything odd in the system logs.

This behavior doesn't happen after I shut down the zram-config service.

Does it mean, that zram swap is not ready for production? Or is it misconfigured? How can I debug this problem?

share|improve this question

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.