Re: [announce] Spring 2017 release: s6 init fails with buildroot on MIPS

From: Van Bemten, Lionel (Nokia - BE/Antwerp) <"Van>
Date: Thu, 11 May 2017 13:42:31 +0000

Hello all,

After upgrading to the below release of skarnet packages, my system
is not booting anymore on MIPS. I am using buildroot and the s6-linux-init-skeleton
provided there by Éric Le Bihan.

The init usually stays blocked there:

  s6-rc: info: processing service fdholder: starting

with the following processes running:

  136 root s6-rc -v 3 -u change services-all
  143 root s6-fdholderd -1 -i data/rules
  146 root s6-ipcserverd -1 -- s6-ipcserver-access -v0 -E -l0 -i data/rules -- s6-sudod -t 2000 -- /usr/libexec/s6-rc-oneshot-run -l
  173 root s6-svlisten1 -u -- /run/s6-rc/scandir/klogd-log s6-svc -u -- /run/s6-rc/scandir/klogd-log
  183 root s6-ftrigrd
  296 root s6-svlisten1 -U -- /run/s6-rc/scandir/fdholder s6-svc -u -- /run/s6-rc/scandir/fdholder
  297 root s6-ftrigrd

and I regularly see the following message, even though not consistently:

  s6-ftrigrd: fatal: unable to flush asyncout: Broken pipe

When I build the very same system for x86 I do not see any issue, it is very stable, so I
suspect a cross-compilation issue. Since buildroot patches skalibs in order to determine
system capabilities through build-time asserts instead of runtime tests, it is possible that
something goes wrong there. However I have adapted the patches to the new release,
and so far I cannot identify any error in the detected system settings.

If anyone has any idea to help the investigation, it would be highly appreciated :).
Maybe for example a hint on what could cause s6-ftrigrd to get a broken pipe ?

From: <> on behalf of Jean Louis <>
Sent: Tuesday, March 28, 2017 3:45 PM
To: Laurent Bercot
Subject: Re: [announce] Spring 2017 release

By the way, I have upgraded, without control, I see it is working well
and fine on a reboot.

On Tue, Mar 28, 2017 at 12:27:28PM +0000, Laurent Bercot wrote:
> > * s6-
> > ----------
> And obviously I forgot to mention the important change for users:
> s6-svstat can now print programmatically parsable output, via a new
> "-o field" option (and shortcuts for common fields). This feature was
> asked for a long time ago.
> --
> Laurent
Received on Thu May 11 2017 - 13:42:31 UTC

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