Btrfs consume too much RAM

[Daniel Gonçalves]

Hello!

I have two systemw with btrfs and I want to perform some send/receive 
between them (over SSH) in order to backup my datas.
Unfortunately the send command consume all available ram and is killed 
by systemd-oomd service.

Did I miss anything or should I report a bug?

FYI I run Fedora 36 with last update.

Regards,

Daniel

[Stephen Smoogen]

On Fri, 16 Sept 2022 at 09:32, Daniel Gonçalves <fedora(a)lves.fr&gt; wrote:

>  Hello!
>
>  I have two systemw with btrfs and I want to perform some send/receive
>  between them (over SSH) in order to backup my datas.
>  Unfortunately the send command consume all available ram and is killed
>  by systemd-oomd service.
>
>  
There is a lot of information needed in order for anyone to answer what is
going on
How much memory is in your system
How much disk space is being consumed
How is the backup over ssh being done (what is the 'send' command being
used)
What is the kernel (saying the last update does not help because that
changes daily and the person reading this may be days in the future), glibc
on the system
What does /proc mount on the two systems say.




>  Did I miss anything or should I report a bug?
>
>  FYI I run Fedora 36 with last update.
>
>  Regards,
>
>  Daniel
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-- 
Stephen Smoogen, Red Hat Automotive
Let us be kind to one another, for most of us are fighting a hard battle.
-- Ian MacClaren

[Neal Gompa]

On Fri, Sep 16, 2022 at 9:32 AM Daniel Gonçalves <fedora(a)lves.fr&gt; wrote:
>  Hello!
>
>  I have two systemw with btrfs and I want to perform some send/receive
>  between them (over SSH) in order to backup my datas.
>  Unfortunately the send command consume all available ram and is killed
>  by systemd-oomd service.
>
>  Did I miss anything or should I report a bug?
>
>  FYI I run Fedora 36 with last update.
>  
Please file a bug against btrfs-progs. In the bug report, please
provide the following information:

* btrfs-progs version
* kernel version
* systemd version
* openssh version
* memory (free / total)
* size of the data being transferred
* command used for the transfer on both ends


-- 
真実はいつも一つ！/ Always, there's only one truth!