On 02/02/2014 02:27 PM, Alexander E. Patrakov wrote:
02.02.2014 20:18, "Jóhann B. Guðmundsson" wrote:

On 02/02/2014 01:39 PM, Alexander E. Patrakov wrote:

The patch is obviously harmless. However, I am not convinced that it
is needed, because in my setup (without this patch) there are no links
in /dev/disk pointing to any zram device. You can change my opinion by
providing configuration files that do result in such links being
created by systemd.

udev seems to have a race condition with swapon to see which can open
/dev/zram0 first, causing swapon to fail.
( seems to be most noticeable on arm devices one out of every 7 times or
something ) and this patches udev's persistent storage rules to avoid
probing any zram devices.

Thanks, this explains why the patch is needed. But this should really be in the commit message :)


Regarding the future of zram support in systemd should that not be added to fstab-generator and swap, with unit type ending in .zswap?

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