[OpenWrt-Devel] UBIFS issues within kernel 4.14.69?

[Koen Vandeputte]

Hi Richard,

I'm currently in the process of updating the kernel version within 
OpenWrt. (4.14.68 to 4.14.69)

Testing shows some issues on devices using specifically UBIFS.
Altering a perfect valid writable file shows weird errors:


[ Node 2 | node-2 ] ls -l /root/custom/scripts/banner.sh
-rwxr-xr-x    1 root     root           283 Sep 11 09:52 
/root/custom/scripts/banner.sh

[ Node 2 | node-2 ] cat /root/custom/scripts/banner.sh
#!/bin/sh

if [ ! -f /root/.banner_ok ]
then
     RELEASE=$(cat /root/build_date)
     VERSION=$(cat /root/version)

     echo "Generating banner: $VERSION $RELEASE"
     sed s/VERSION/$VERSION/g /root/custom/banner > /etc/banner
     sed -i s/RELEASE/$RELEASE/g /etc/banner

     touch /root/.banner_ok
fi

[ Node 2 | node-2 ] echo "test" > /root/custom/scripts/banner.sh
-ash: can't create /root/custom/scripts/banner.sh: nonexistent directory



I'm also noticing other apps fail because /etc doesn't exists yet after 
UBIFS boot loading.
these 2 issues were not seen on 4.14.68.

The bootlog doesn't show any error:
https://pastebin.com/raw/dJx47uBp


I'm only seeing these issues on UBIFS enabled volumes.

It seems it's related to one of your 5 commits, but I'm still in the 
process of bisecting to find the actual culprit.
As soon as I've found it, I'll let you know, but maybe you already have 
an idea here?



Thanks,

Koen

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