[Freedombox-discuss] Occasional freezes

[permondes - sagen]

Thanks, I will disable Coquelicot for the moment.
I am currently reading through zram and zswap, both sound promising
even though I do not fully understand them.zram seems to create a space
in RAM for a compressed swap, so more user data can be stored in
RAM,whereas zswap works same as zram as long as possible and when more
memory is required, it switches to file Swap.Maybe these are
alternatives to traditional swap?
zram is in debian testing, zswap I found in wikipedia.
I will think about whether to use a USB ext4 device as swap or try
zram.
By the way (but I think these are not related to my issues), a) even
though I disabled Tor, there is a process still running.b) default-
mysql-server upgrade is held back in apt
	Dietmar
Am Donnerstag, den 31.01.2019, 14:39 +0530 schrieb Joseph Nuthalapati:
> We have recently made a switch from apache mod-php to the php-fpm
> module. php-fpm runs a daemon in the background which can take up
> some RAM.
> 
> Maybe, you can also keep Coquelicot disabled for a while and see the
> results.
> 
> We have a feature request to add a swap space by default to
> FreedomBox
> images. Swap not working on btrfs filesystems is a bit disappointing.
> 
> This might be a bad idea, but you can probably use an attached USB
> disk
> as the swap partition.
> 
> 
> On 31/01/19 2:23 pm, permondes - sagen wrote:
> > Oh Sh....
> > Swap files are not allowed on btrfs
> > 
> > manpages say:
> > > *swapon* may not work correctly when using a swap file with some
> > > versions  of *btrfs*. This is due to btrfs being a copy-on-write
> > > filesystem: the  file location may not be static and corruption
> > > can
> > > result. Btrfs actively  disallows the use of swap files on its
> > > filesystems by refusing to map the  file.
> > 
> > So I have to generate a swap partition on a micro-SD card. I think
> > to
> > have read this was discouraged because wear leveling was then
> > inefficient.
> > 
> > I would put a remark in our hardware section to avoid devices with
> > <1 GB
> > RAM.
> > I will do this after I am sure my issues come from running out of
> > RAM.
> > 
> > Dietmar
> > 
> > Am Donnerstag, den 31.01.2019, 09:32 +0100 schrieb permondes -
> > sagen:
> > > Thanks for the hint, but it runs into bug #913481.
> > > I will do it according to the debian wiki > swap
> > > 
> > > Nevertheless, it would be better to find the cause of the freezes
> > > by
> > > investigating some log files.
> > > Currently I just see the authentication errors in coqueliqot and
> > > actually also in mediawiki - but both work.
> > > 
> > > Dietmar
> > > 
> > > Am Mittwoch, den 30.01.2019, 23:15 +0100 schrieb Petter
> > > Reinholdtsen:
> > > > [Permondes - Sagen]
> > > > > I am considering to set up a SWAP-file on FBx in order to
> > > > > avoid the
> > > > > risk of running out of RAM. Will this interfere with the FBx
> > > > > ecosystem? 
> > > > 
> > > > 
> > > > I doubt it, but can not say for sure.  Are you aware of the
> > > > dphys-swapfile package?  I suspect just installing it might do
> > > > what you
> > > > want.
> > > > 
> > > > --
> > > > Happy hacking
> > > > Petter Reinholdtsen
> > > > 
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