From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.sysutils.supervision.general/2612 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Guillermo Newsgroups: gmane.comp.sysutils.supervision.general Subject: Re: interesting claims Date: Sat, 18 May 2019 17:04:21 -0300 Message-ID: References: <11997211556565598@myt6-27270b78ac4f.qloud-c.yandex.net> <20190501033355.6e41e707@mydesk.domain.cxm> <20190515132206.03f9736e@mydesk.domain.cxm> <20190516012214.15ffcf2e@dickeberta> <20190515210717.27b002ba@mydesk.domain.cxm> <5f5b6035-240b-e6d6-497d-d9bb945d135f@obarun.org> <5994381558140755@sas2-2074c606c35d.qloud-c.yandex.net> <57af526d-cc12-135b-218c-721d51129876@obarun.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="157308"; mail-complaints-to="usenet@blaine.gmane.org" To: Supervision Original-X-From: supervision-return-2202-gcsg-supervision=m.gmane.org@list.skarnet.org Sat May 18 22:04:40 2019 Return-path: Envelope-to: gcsg-supervision@m.gmane.org Original-Received: from alyss.skarnet.org ([95.142.172.232]) by blaine.gmane.org with smtp (Exim 4.89) (envelope-from ) id 1hS5ZM-000eiu-1G for gcsg-supervision@m.gmane.org; Sat, 18 May 2019 22:04:36 +0200 Original-Received: (qmail 31875 invoked by uid 89); 18 May 2019 20:05:01 -0000 Mailing-List: contact supervision-help@list.skarnet.org; run by ezmlm Original-Sender: Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Original-Received: (qmail 31868 invoked from network); 18 May 2019 20:05:00 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :content-transfer-encoding; bh=FCRYEIkQ7UHdp5WkKbSNQwWSyPoerBTE4mQsdLCLpN4=; b=mZLh80qRMvA+Zt+16c6s8s/7RUBXQOQvt18haRrWWc6/DxIqv0eizi141NYL4E4kTr HIvuTi24jb43lr8byUZLWYNHwLI1NsmwaqCscGHdtR20Zy482OFCsVHqycPiTAh/FkSW I8j8hcXrhKdgiBpCwh5tXu6XhYNyAf+cJXU1cc9CrRcLdPJ0TEAWL/4p2VGjd4VpDgJq UKZW9yalsA8HTZo7i/Tz50tOXwu88rYh8fc2dIdG3KqO/SaPvxCAWhPw+Lb6LzPMOuyv ++0aFYKoqbgnvNePvu87XZA7DfR0uAljN/YtHJu7K7LBIPhy474jkypZ950to2KZ7T/v 6x2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:content-transfer-encoding; bh=FCRYEIkQ7UHdp5WkKbSNQwWSyPoerBTE4mQsdLCLpN4=; b=uEMRXR+e20i14KUfYB3B7tSOivRf/r0ZKwZzjFDa4q88i0H0DiBMxWvy/aHW2fugNn /W1pr6Tx0hmRzNeE/OWhMLCwawLlW9M86vFcsEHxwSLVaXmO7AfuQ19TYr4nzlj5WoN9 n37zS44Enrcqxz+WMUGV4VjwuY+B2Q+kwLOcT+Mk/YurTkUIf0io6gE49fvwj6cRjh5y m7WnpQltxWI2LHJdSgD8QvKgx6iNVEju5ns3g9bUqLiz4fwjxEOs1uWpKm4SVEQwnJuy iZfdiro88wlYy6nCL//YutWXOrrr9TA9oZvdSGm8hWGh8DkVQCbBHkqsZWOaIXeWVfIN 22ng== X-Gm-Message-State: APjAAAV+pJchRcQVTDGWaybSfZWMs01GQmiaViNqdxvNu4+WQgyMSRqE VTFUaneQiukvWr6p6WMJGhNMqnf+HUhztm/eV4tPag== X-Google-Smtp-Source: APXvYqzgXTDA1Rn7ttpWSX2bBVOW4YIRMiE56YMLmFgqwYCDCqRg+y21pB1nATl7Sfb9aG9+2JN3jQpwucaNVJAvfN8= X-Received: by 2002:a5d:9b01:: with SMTP id y1mr4536310ion.165.1558209872861; Sat, 18 May 2019 13:04:32 -0700 (PDT) In-Reply-To: <57af526d-cc12-135b-218c-721d51129876@obarun.org> Xref: news.gmane.org gmane.comp.sysutils.supervision.general:2612 Archived-At: El s=C3=A1b., 18 may. 2019 a las 13:26, fungal-net escribi=C3=B3: > > >>> OpenRC: Nice, > >>> init > >>> |_ zsh > >>> when I exited the shell there was nothing but a dead cursor on my = screen > > [...] > >> May I ask what was this setup like? You made a different entry for > >> sysvinit, presumably with the customary getty processes configured in > >> /etc/inittab 'respawn' entries, judging by your results, so how was > >> the OpenRC case different? > > > > i also wondered whether he used openrc-init here ? > > [...] > I remember seeing this although I may have mixed it up. I have a few > Artix-OpenRC images and an older Manjaro-OpenRC which was a predecessor. > Running both again didn't produce this result. They just froze with a > dash on the top left of the screen, didn't poweroff. So I am puzzled now > what I mixed up. Ah, the OpenRC variant of Artix. That might explain it. Apparently, this does mean 'pure' OpenRC indeed, i.e. openrc-init and openrc-shutdown in addition to the service manager. I didn't know there were distributions that used this setup. openrc-init, just like Suckless init, does not currently supervise any other process, so this test seems to have put the VM in a coma by killing every process but #1 (after the only apparent survivor, zsh, exited). > But although I got curious what "kill -9 -1" would do to different > systems I don't see the usefulness of this. Since you actually went ahead and did it, and reported the results, for me it was interesting to see if they matched what theory says that would happen. They did (assuming that what you wrote about the s6 case means that the system more or less reconstructed itself). Thanks, G.