On Fri, 2023-09-01 at 12:36 +0100, Patrick O'Callaghan wrote:
> I've noticed recently that Apache often (or perhaps always) doesn't
> respond after a system hibernate/resume cycle. After restarting it
> ('apachectl restart') all is well.
>
> I could script an automatic restart after resuming, but I wondered if
> this is a well-known problem with a simpler solution.
No replies so far, so I attempted the automatic restart, using this
script:
# cat hibernate-resume.service
[Unit]
Description=Disable swap after resuming from hibernation
After=hibernate.target
[Service]
SyslogIdentifier=%N
User=root
Type=oneshot
ExecStart=/bin/bash -c ' \
/usr/sbin/swapoff /SWAP/swapfile ; \
/usr/sbin/apachectl graceful ; \
'
[Install]
The swap stuff works (as discussed in an earlier thread), but the
Apache restart fails:
Sep 06 08:01:33 Bree systemd[1]: selinux: avc: denied { start } for auid=n/a uid=0 gid=0 path="/usr/lib/systemd/system/httpd.service" cmdline="" function="bus_unit_method_start_>
Sep 06 08:01:33 Bree systemctl[201281]: Failed to restart httpd.service: Access denied
Sep 06 08:01:33 Bree systemctl[201281]: See system logs and 'systemctl status httpd.service' for details.
Sep 06 08:01:33 Bree systemd[1]: hibernate-resume.service: Main process exited, code=exited, status=4/NOPERMISSION
However once the system is up and resumed, I can restart it manually
with no issues. This looks like an SElinux problem, so what's the
solution?
poc
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