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To: openwrt-devel@lists.openwrt.org
From: "A. Benz" <ash.benz@bk.ru>
Subject: Sysupgrade failure (unable to kill all processes).
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Date: Sat, 2 Jun 2018 14:33:20 +0800
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Hi,

Device: ZBT WG3526 (MT7621)

Upgrading from 18.06 --> 18.06 (only adding wireguard to prebuilt packages).

I was unable to perform a sysupgrade, the box just reboots into current 
FW, after connecting a serial cable I find:

######

Sending KILL to remaining processes ... hostapd hostapd hostapd hostapd 
hostapd hostapd hostapd hostapd hostapd hostapd
Failed to kill a[  125.891451] reboot: Restarting system
ll processes.
sysupgrade aborted with return code: 256

#####


Fix: issue wifi down before the upgrade (or kill hostapd), and the 
upgrade will succeed.

-- 

Regards,
A. Benz


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