From: Marius Bakke <mbakke@fastmail.com>
To: "Ludovic Courtès" <ludo@gnu.org>,
"Danny Milosavljevic" <dannym@scratchpost.org>
Cc: guix-devel <guix-devel@gnu.org>
Subject: Re: KDFONTOP/PIO_UNIMAPCLR: Input/output error
Date: Wed, 04 Jul 2018 16:29:46 +0200 [thread overview]
Message-ID: <87d0w3846d.fsf@fastmail.com> (raw)
In-Reply-To: <874lhfccs5.fsf_-_@gnu.org>
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ludo@gnu.org (Ludovic Courtès) writes:
> Hello Danny & all,
>
> Danny Milosavljevic <dannym@scratchpost.org> skribis:
>
>>> PIO_UNIMAPCLR: Input/output error
>>> 3) PIO_UNIMAPCLR: Input/output error
>>>
>>> Anything to worry about?
>>
>> According to https://elixir.bootlin.com/linux/v3.2/source/include/linux/kd.h#L70
>> that's trying to clear the Unicode -> font map (that is, charmap).
>>
>> In Linux, ./drivers/tty/vt/vt_ioctl.c implements it.
>>
>> Can't see how that ever ends up in -EIO O_o
>
> Sometimes we also get:
>
> putfont: KDFONTOP: Input/output error
>
> In both cases, the warning comes from the ‘setfont’ program, invoked
> from ‘console-font-shepherd-services’.
>
> I’ve looked at the code and man pages and like you, I don’t see where
> EIO comes from. Maybe it’s a generic ioctl error that’s return before
> we reach the actual ioctl implementation in the VT driver, sorta like
> EBADF?
>
> Until we find out, I’d like to just silence the warnings:
>
> --- a/gnu/services/base.scm
> +++ b/gnu/services/base.scm
> @@ -754,8 +754,10 @@ to add @var{device} to the kernel's entropy pool. The service will fail if
> ;; systemd's vconsole support, let's not treat
> ;; this as an error.
> (case (status:exit-val
> - (system* #$(file-append kbd "/bin/setfont")
> - "-C" #$device #$font))
> + (with-error-to-port (%make-void-port "w")
> + (lambda ()
> + (system* #$(file-append kbd "/bin/setfont")
> + "-C" #$device #$font))))
> ((0 71) #t)
> (else #f))))
> (stop #~(const #t))
>
> Sounds good?
Less scary warnings in the first impression sounds great :-)
There should be an explaining comment with that code though.
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next prev parent reply other threads:[~2018-07-04 14:29 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-03 8:15 Installation-Protocol for GuixSD x86_64 v0.15-preview Björn Höfling
2018-07-03 10:49 ` Tobias Geerinckx-Rice
2018-07-03 11:38 ` (Ab?)using aliases to set ls' and others' colours Tobias Geerinckx-Rice
2018-07-04 18:01 ` Björn Höfling
2018-07-04 22:17 ` Ludovic Courtès
2018-07-04 22:17 ` Ricardo Wurmus
2018-07-04 17:56 ` Installation-Protocol for GuixSD x86_64 v0.15-preview Björn Höfling
2018-07-03 13:20 ` Marius Bakke
2018-07-03 13:27 ` Danny Milosavljevic
2018-07-03 21:35 ` Ludovic Courtès
2018-07-04 14:10 ` KDFONTOP/PIO_UNIMAPCLR: Input/output error Ludovic Courtès
2018-07-04 14:29 ` Marius Bakke [this message]
2018-07-04 22:20 ` Ludovic Courtès
2018-07-03 21:42 ` Installation-Protocol for GuixSD x86_64 v0.15-preview Ludovic Courtès
2018-07-04 18:06 ` Björn Höfling
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