Comment 45 for bug 1217189

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Nebojsa Markovic (nebojsa-plusplus) wrote : Re: Buffer I/O error on device zram0 (possibly causing complete machine lockup)

A simple workaround is to blacklist the zram module, and update your initramfs:

1. create a text file /etc/modprobe.d/blacklist-zram.conf:
blacklist zram

2. enter command
update-initramfs -c -k all

After reboot, the zram module will not be loaded anymore.

You can also temporarily unload the module:

1. list swap devices:
swapon -s

- it should produce output similar to:
Filename Type Size Used Priority
/dev/zram0 partition 4102348 55052 100
/dev/sda9 partition 4112604 0 -1

2. now turn off swapping on zram0:
sudo swapoff /dev/zram0

3. now that module is not used anymore, it can be unloaded:
sudo rmmod zram