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skarnet / s6

The s6 supervision suite.
https://skarnet.org/software/s6/
ISC License
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s6-svscan shows warning messages on arm32v7/alpine container #26

Closed YoitoFes closed 3 years ago

YoitoFes commented 3 years ago

Platform: arm32v7/alpine container (Host OS is either Debian 10 amd64 or Raspberry Pi OS arm32) s6 version: 2.10.0.2

When I execute s6-svscan, following warning messages are displayed although the services work fine.

$ cat /etc/s6/cron/run
#!/bin/sh

exec cron -f -d 8

$ s6-svscan /etc/s6
crond: crond (busybox 1.32.1) started, log level 8
s6-supervise yes: warning: can't happen: timeout while the service is up!
s6-supervise yes: warning: can't happen: timeout while the service is up!
s6-supervise yes: warning: can't happen: timeout while the service is up!

s6-2.9.1.0 does not show the messages in the same situation.

skarnet commented 3 years ago

Known issue, fixed in Alpine edge. (skalibs-2.10.0.2-r1)

The problem is that Alpine builds packages with fortify-headers, which until the latest version broke ppoll() with musl-1.2 on 32-bit architectures. skalibs has been rebuilt on edge with a fixed fortify-headers; please upgrade it if you can, else it will be available in the next 3.13 bugfix release.