Re: [systemd-devel] Q on serial-getty
Am Mittwoch, den 07.10.2020, 08:49 +0200 schrieb Ulrich Windl:
> Hi!
>
> I'm thinking of configuring a serial getty in SLES15 (systemd-234). First I
> found that there is no manual page describing the service, and second if I
> use "systemctl show serial-getty" ("systemctl show serial-getty@" does not
> work), I get some "funny" numbers:
>
> ...
> UID=4294967295
> GID=4294967295
> ...
> MemoryCurrent=18446744073709551615
> CPUUsageNSec=18446744073709551615
> TasksCurrent=18446744073709551615
> IPIngressBytes=18446744073709551615
> IPIngressPackets=18446744073709551615
> IPEgressBytes=18446744073709551615
> IPEgressPackets=18446744073709551615
> ...
> CPUWeight=18446744073709551615
> StartupCPUWeight=18446744073709551615
> CPUShares=18446744073709551615
> StartupCPUShares=18446744073709551615
> ...
>
> Obviously that number is the unsigned 64-bit representation of -1, but
> considering that no such service is running, the output looks quite odd.
> If -1 means "unknown", why not use that string, or if it means "unlimited",
> why not use that string?
>
> Regards,
> Ulrich
Hi Ulrich,
have you already tried `systemctl help serial-getty@foo.service` (yes,
instanciatable units need a instance token, even if useless)? This
should open some documentation.
Also, for the serial getty actually a generator is used to
automatically start it, if already requested by the boot loader and
kernel command line. See man:systemd-getty-generator(8) and
http://0pointer.de/blog/projects/serial-console.html for more
information.
BR
Silvio
___
systemd-devel mailing list
systemd-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] Q on serial-getty
On Wed, Oct 7, 2020 at 9:49 AM Ulrich Windl <
ulrich.wi...@rz.uni-regensburg.de> wrote:
> Hi!
>
> I'm thinking of configuring a serial getty in SLES15 (systemd-234). First
> I found that there is no manual page describing the service, and second if
> I use "systemctl show serial-getty" ("systemctl show serial-getty@" does
> not work), I get some "funny" numbers:
>
> ...
> UID=4294967295
> GID=4294967295
> ...
> MemoryCurrent=18446744073709551615
> CPUUsageNSec=18446744073709551615
> TasksCurrent=18446744073709551615
> IPIngressBytes=18446744073709551615
> IPIngressPackets=18446744073709551615
> IPEgressBytes=18446744073709551615
> IPEgressPackets=18446744073709551615
> ...
> CPUWeight=18446744073709551615
> StartupCPUWeight=18446744073709551615
> CPUShares=18446744073709551615
> StartupCPUShares=18446744073709551615
> ...
>
> Obviously that number is the unsigned 64-bit representation of -1, but
> considering that no such service is running, the output looks quite odd.
> If -1 means "unknown", why not use that string, or if it means
> "unlimited", why not use that string?
>
This was fixed in systemd-235 several years ago.
https://github.com/systemd/systemd/commit/21771f338d268e06dc9a10b9b08b14ff8217d4be
--
Mantas Mikulėnas
___
systemd-devel mailing list
systemd-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/systemd-devel
[systemd-devel] Q on serial-getty
Hi!
I'm thinking of configuring a serial getty in SLES15 (systemd-234). First I
found that there is no manual page describing the service, and second if I use
"systemctl show serial-getty" ("systemctl show serial-getty@" does not work), I
get some "funny" numbers:
...
UID=4294967295
GID=4294967295
...
MemoryCurrent=18446744073709551615
CPUUsageNSec=18446744073709551615
TasksCurrent=18446744073709551615
IPIngressBytes=18446744073709551615
IPIngressPackets=18446744073709551615
IPEgressBytes=18446744073709551615
IPEgressPackets=18446744073709551615
...
CPUWeight=18446744073709551615
StartupCPUWeight=18446744073709551615
CPUShares=18446744073709551615
StartupCPUShares=18446744073709551615
...
Obviously that number is the unsigned 64-bit representation of -1, but
considering that no such service is running, the output looks quite odd.
If -1 means "unknown", why not use that string, or if it means "unlimited", why
not use that string?
Regards,
Ulrich
___
systemd-devel mailing list
systemd-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/systemd-devel
