Re: ubifs: regression since "ubifs: xattr: Don't operate on deleted inodes"

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adding stable@ for stable kernel issues...

On Thu, Sep 13, 2018 at 09:58:35AM +0200, Koen Vandeputte wrote:
> Hi all,
> 
> 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.
> Reverting ("ubifs: xattr: Don't operate on deleted inodes") fixes these
> weird issues.

Do you also have the same problem on Linus's latest tree, or 4.18, with
this change in the tree?

thanks,

greg k-h

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