zram cannot allocate memory

sasongko · 03-21-2022, 08:35 PM

I tried zram with the following command, but failed

Code:

# zramctl -f -s 1G
zramctl: /dev/zram0: failed to set disksize (1073741824 bytes): Cannot allocate memory

The zram module has been loaded

Code:

# lsmod|grep -i zram
zram                   28672  0

/proc/meminfo :

Code:

# cat /proc/meminfo
MemTotal:        1931184 kB
MemFree:           84180 kB
MemAvailable:     356980 kB
Buffers:           34832 kB
Cached:           565064 kB
SwapCached:         4592 kB
Active:           325488 kB
Inactive:        1249144 kB
Active(anon):     109852 kB
Inactive(anon):  1086512 kB
Active(file):     215636 kB
Inactive(file):   162632 kB
Unevictable:       50804 kB
Mlocked:              96 kB

Slackware 15.0, kernel 5.15.27.
Whats wrong, and how to deal with it? Huge thanks for your advice

Didier Spaier · 03-22-2022, 01:27 AM

You need to make the swap device using mkswap then enable it with swapon.

This command will tell you if a swap device in zram is active:

Code:

lsblk -lno name,mountpoint|grep ^zram|grep SWAP