[systemd-devel] question about a poweroff issue

[piliu]

Hi,

I encountered a systemd bug during saving vmcore for kdump kernel.

I got the following message:

[   60.283489] systemd[1]: Started Reload Configuration from the Real Root.
[   60.290912] systemd[1]: Reached target Initrd File Systems.
[   60.296162] systemd[1]: Reached target Initrd Default Target.
[   60.299343] systemd[1]: Starting dracut pre-pivot and cleanup hook...
         Starting dracut pre-pivot and cleanup hook...
[  OK  ] Started dracut pre-pivot and cleanup hook.
[   60.338320] systemd[1]: Started dracut pre-pivot and cleanup hook.
[   60.340503] systemd[1]: Starting Kdump Vmcore Save Service...
         Starting Kdump Vmcore Save Service...
kdump: dump target /dev/mapper/rhel_storageqe--25-root is not mounted,
trying to mount...
kdump: saving to
/sysroot//mnt/kdump_multi/var/crash/127.0.0.1-2020-02-20-05:00:45/
kdump: saving vmcore-dmesg.txt
kdump: saving vmcore-dmesg.txt complete
kdump: saving vmcore
Copying data                                      : [100.0 %] /
 eta: 0s
kdump: saving vmcore complete
Bus n/a: changing state UNSET → OPENING
Bus n/a: changing state OPENING → AUTHENTICATING
Bus n/a: changing state AUTHENTICATING → RUNNING
Sent message type=method_call sender=n/a
destination=org.freedesktop.systemd1 path=/org/freedesktop/systemd1
interface=org.freedesktop.systemd1.Manager member=Reboot cookie=1
reply_cookie=0 signature=n/a error-name=n/a error-message=n/a
[   66.032946] systemd[1]: Shutting down.
Got message type=method_return sender=org.freedesktop.systemd1
destination=n/a path=n/a interface=n/a member=n/a cookie=1
reply_cookie=1 signature=n/a error-name=n/a error-message=n/a
Bus n/a: changing state RUNNING → CLOSED
[   66.060777] printk: systemd-shutdow: 350 output lines suppressed due
to ratelimiting
[   66.316784] printk: systemd-journal: 13 output lines suppressed due
to ratelimiting
[  156.506161] qla2xxx [0000:08:00.1]-fffa:1: Adapter shutdown
[  156.535660] qla2xxx [0000:08:00.1]-00af:1: Performing ISP error
recovery - ha=00000000350c9f53.
[  156.581142] qla2xxx [0000:08:00.1]-fffe:1: Adapter shutdown successfully.
[  156.612816] qla2xxx [0000:08:00.0]-fffa:0: Adapter shutdown
[  156.638997] qla2xxx [0000:08:00.0]-00af:0: Performing ISP error
recovery - ha=000000007acbb643.
[  156.681032] qla2xxx [0000:08:00.0]-fffe:0: Adapter shutdown successfully.


In the kdump script, for the final step, it calls "systemctl reboot -f".
But it seems the system is experiencing poweroff instead of reboot.

Further more, in kdump script, even if I placed "sleep 60" before
"systemctl reboot -f", the extra command did not take effect, and the
system just start to poweroff immediately. So I guess there is another
process to launch the poweroff action, but how to know what is it?

Any suggestion?

Thanks,
Pingfan