GNU bug report logs - #34768
guix-daemon tmpfs out of space on parabola

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: swedebugia <swedebugia <at> riseup.net>
To: Report new Guix bug <bug-guix <at> gnu.org>
Subject: guix-daemon tmpfs out of space on parabola
Date: Wed, 6 Mar 2019 15:04:10 +0100

[Message part 1 (text/plain, inline)]

Hi

I'm trying to build New Moon (unbranded palemoon browser) in parabola.
The tmpfs i 2G which is way too little it seems.

I read the man page of guix-daemon and the manual and could not find a
way to point guix-daemon to another tmpdir than /tmp.

Is this a bug?

In case it is not possible to change on the guix side (before we rewrite
the daemon) I think we should add a section about how to work around it
to the manual.

-- 
Cheers Swedebugia

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Message #8 received at 34768 <at> debbugs.gnu.org (full text, mbox):

From: Tobias Geerinckx-Rice <somebody <at> not-sent-or-endorsed-by.tobias.gr>
To: swedebugia <swedebugia <at> riseup.net>
Cc: 34768 <at> debbugs.gnu.org
Subject: Re: bug#34768: guix-daemon tmpfs out of space on parabola
Date: Wed, 06 Mar 2019 15:31:13 +0100

Hullo,

swedebugia wrote:
> I'm trying to build New Moon (unbranded palemoon browser) in 
> parabola.
> The tmpfs i 2G which is way too little it seems.
>
> I read the man page of guix-daemon and the manual and could not 
> find a
> way to point guix-daemon to another tmpdir than /tmp.

Well, TMPDIR= should Just Work :-)

You'll have to set it to the environment of guix-daemon (and 
restart the daemon) for it to have any effect.  How that's done 
depends on your service manager/init system.

I guess a ‘set-tmpdir’ RPC could be added to the protocol.  I 
haven't thought through the security implications, and IMO it's 
just papering over the real bug, which is…

> Is this a bug?

Not sure what exactly you're referring to, but yes, I do think 
that using /tmp instead of /var/tmp (or any non-tmpfs) is a bug by 
modern(?) conventions.  It's guaranteed to break eventually on 
almost every non-Guix System, and when it doesn't it's an abuse of 
RAM and swap space.

Kind regards,

T G-R

Message #11 received at 34768 <at> debbugs.gnu.org (full text, mbox):

From: swedebugia <swedebugia <at> riseup.net>
To: Tobias Geerinckx-Rice <somebody <at> not-sent-or-endorsed-by.tobias.gr>
Cc: 34768 <at> debbugs.gnu.org
Subject: Re: bug#34768: guix-daemon tmpfs out of space on parabola
Date: Thu, 07 Mar 2019 15:20:07 +0100

[Message part 1 (text/plain, inline)]

Tobias Geerinckx-Rice <somebody <at> not-sent-or-endorsed-by.tobias.gr> skrev: (6 mars 2019 15:31:13 CET)
>Hullo,
>
>swedebugia wrote:
>> I'm trying to build New Moon (unbranded palemoon browser) in 
>> parabola.
>> The tmpfs i 2G which is way too little it seems.
>>
>> I read the man page of guix-daemon and the manual and could not 
>> find a
>> way to point guix-daemon to another tmpdir than /tmp.
>
>Well, TMPDIR= should Just Work :-)
>
>You'll have to set it to the environment of guix-daemon (and 
>restart the daemon) for it to have any effect.  How that's done 
>depends on your service manager/init system.
>
>I guess a ‘set-tmpdir’ RPC could be added to the protocol.  I 
>haven't thought through the security implications, and IMO it's 
>just papering over the real bug, which is…
>
>> Is this a bug?
>
>Not sure what exactly you're referring to, but yes, I do think 
>that using /tmp instead of /var/tmp (or any non-tmpfs) is a bug by 
>modern(?) conventions.  It's guaranteed to break eventually on 
>almost every non-Guix System, and when it doesn't it's an abuse of 
>RAM and swap space.
>
>Kind regards,
>
>T G-R

Hi 😃

Thanks for the details. I agree that it is a bug.

I solved it by masking tmp.mount in systemd according to the arch wiki and thus disabled tmpfs for the whole thing.
-- 
Sent from my k-9 mail for Android.

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Message #14 received at 34768 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: swedebugia <swedebugia <at> riseup.net>
Cc: 34768 <at> debbugs.gnu.org
Subject: Re: bug#34768: guix-daemon tmpfs out of space on parabola
Date: Sun, 10 Mar 2019 18:29:15 +0100

Hi swedebugia,

swedebugia <swedebugia <at> riseup.net> skribis:

> I read the man page of guix-daemon and the manual and could not find a
> way to point guix-daemon to another tmpdir than /tmp.

guix-daemon honors the TMPDIR environment variable, so you can run:

  TMPDIR=/some/where/else guix-daemon …

See <https://gnu.org/s/guix/manual/en/html_node/Invoking-guix_002ddaemon.html>.

HTH!

Ludo’.

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