On Tue, Apr 22, 2014 at 8:25 AM, Reindl Harald <h.reindl(a)thelounge.net&gt; wrote: I don't have any machine that has zram autoloaded. There's something on your system that is telling something to load the zram module. It won't load without something explicitly loading it. I have no idea what this script is, or why it's removing the zram module like that. It doesn't appear packaged in Fedora, so I can't really tell you where to report your issue but this isn't a kernel problem that I can see... josh

On Tue, Apr 22, 2014 at 8:46 AM, Reindl Harald <h.reindl(a)thelounge.net&gt; wrote: Yeah, you answered your own question on that thread, so I didn't look into it. Reading back, it seems you installed some zram-1.0.0 RPM that isn't in the Fedora repos. That seems to be what is providing all the various zram related items in your VM, because zram.service doesn't exist anywhere else. josh

On Tue, Apr 22, 2014 at 8:58 AM, Reindl Harald <h.reindl(a)thelounge.net&gt; wrote: Yes... OK. So it seems you found the area that is causing your issues, and it's that script/RPM. Glad you cleared it up. josh

On Tue, Apr 22, 2014 at 9:05 AM, Reindl Harald <h.reindl(a)thelounge.net&gt; wrote: What loaded it? It doesn't autoload. I have a rawhide VM here too, it has nothing related to zram configuration, and the module isn't loaded. Every machine I have is like this. [jwboyer@localhost ~]$ lsmod | grep zram [jwboyer@localhost ~]$ dmesg | grep zram [jwboyer@localhost ~]$ ls /dev/zram* ls: cannot access /dev/zram*: No such file or directory [jwboyer@localhost ~]$ uname -a Linux localhost.localdomain 3.15.0-0.rc2.git0.1.fc21.x86_64 #1 SMP Mon Apr 21 08:55:13 EDT 2014 x86_64 x86_64 x86_64 GNU/Linux [jwboyer@localhost ~]$ modinfo zram filename: /lib/modules/3.15.0-0.rc2.git0.1.fc21.x86_64/kernel/drivers/block/zram/zram.ko description: Compressed RAM Block Device author: Nitin Gupta <ngupta(a)vflare.org&gt; license: Dual BSD/GPL depends: intree: Y vermagic: 3.15.0-0.rc2.git0.1.fc21.x86_64 SMP mod_unload signer: Fedora kernel signing key sig_key: A4:E8:3E:17:78:1D:AE:9F:50:BF:F1:AA:78:FE:F3:13:D1:37:22:D7 sig_hashalgo: sha256 parm: num_devices:Number of zram devices (uint) [jwboyer@localhost ~]$ [jwboyer@localhost ~]$ rpm -q systemd systemd-212-1.fc21.x86_64 [jwboyer@localhost ~]$ So, I guess you need to figure out what loaded the zram module. josh

Am 22.04.2014 19:17, schrieb Jóhann B. Guðmundsson: why do you need a sub-package? if it is not loaded all is fine today i started using zram on testing and development virtual machines maybe that it was loaded automatically is already fixed, the first testing was a realy Rawhide 3.15 kernel and after that i blacklisted it but for now still keep the "rmmod" before re-load the module below you have all needed for zram working and i have currently besides the F20 development-servers a Rawhide VM with 256 MB RAM and with zram it survives even "yum reinstall \*" ______________________________________________________________ [root@testserver:~]$ cat /usr/lib/systemd/system/zram.service [Unit] Description=Enable compressed swap in memory using zram After=multi-user.target [Service] RemainAfterExit=yes ExecStart=/usr/sbin/zramstart ExecStop=/usr/sbin/zramstop Type=oneshot [Install] WantedBy=multi-user.target ______________________________________________________________ [root@testserver:~]$ cat /etc/sysconfig/zram FACTOR=25 ______________________________________________________________ [root@testserver:~]$ cat /etc/modprobe.d/disable-zram.conf blacklist zram ______________________________________________________________ [root@testserver:~]$ cat /usr/sbin/zramstart #!/usr/bin/bash num_cpus=$(grep -c processor /proc/cpuinfo) [ "$num_cpus" != 0 ] || num_cpus=1 last_cpu=$((num_cpus - 1)) FACTOR=20 [ -f /etc/sysconfig/zram ] && source /etc/sysconfig/zram || true factor=$FACTOR memtotal=$(grep MemTotal /proc/meminfo | awk ' { print $2 } ') mem_by_cpu=$(($memtotal/$num_cpus*$factor/100*1024)) /usr/sbin/rmmod zram 2> /dev/null > /dev/null /usr/sbin/modprobe -q zram num_devices=$num_cpus 2> /dev/null > /dev/null for i in $(seq 0 $last_cpu); do echo $mem_by_cpu > /sys/block/zram$i/disksize /usr/sbin/mkswap /dev/zram$i /usr/sbin/swapon -p 100 /dev/zram$i done ______________________________________________________________ [root@testserver:~]$ cat /usr/sbin/zramstop #!/usr/bin/bash for i in $(grep '^/dev/zram' /proc/swaps | awk '{ print $1 }'); do /usr/sbin/swapoff "$i" done if grep -q "^zram " /proc/modules; then sleep 1 /usr/sbin/rmmod zram fi

Am 22.04.2014 20:34, schrieb Jóhann B. Guðmundsson: until you don't have the other files (i linked my src.rpm not so long ago here) there is no reason to move a 24 KB small kernel-module to a subpackage, even if you have the other files there is no reason - the package overhead and metadata in the repos are larger so no - there is no need for a subpackage it's statet that it does not get autoloaded and so you are done you only have to take my src.rpm, imporve it and add it to the fedora repos, it loads zram and configures it no need that the kernel-guys have to bother with that they only need to watch that it don't get loaded without a reason

Am 23.04.2014 09:37, schrieb Jóhann B. Guðmundsson: what is you problem? * it's not enabled by default * nobody is forced to spend any second with it * the ones which want like i do can use it instead wait until a solution good enough for you is out there so just don't use it instead make noise here, go ahead and tell all of the above Linus while other continue to use it

Am 23.04.2014 10:28, schrieb Jóhann B. Guðmundsson: *no* *no* *no* and no again i was working *all the time* i just asked to have a look at the loading-behavior i explained *multiple* times that not so long ago zram was loaded on a *Rawhide* 3.15 RC0 kernel without any configuration and the output "zram" of "lsmod" even was the reason that i looked at it resulting in the unit-file and startup-script so please do me a favour and if you don't want to read or understand what i say go out of my way to ship no to support, maybe