[Filesystems-devel] Bug#886329: Bug#886329: aufs-dkms: Cannot use aufs union mount with Linux 4.14.7-1: kernel BUG at /var/lib/dkms/aufs/4.14+20171218/build/fs/aufs/finfo.c:113

[Jan Luca Naumann]

Control: tags -1 unreproducible

Hey,

sorry for the long delay for my answer.

I tested your code sample below and I could not reproduce the bug with a
current 4.14.13 kernel on my system. Could you please test it again?

Best regards,
Jan

Am 04.01.2018 um 15:42 schrieb intrigeri:
> Hi,
> 
> interestingly, only the first access to the aufs mountpoint triggers
> the bug. See the first `ls' failing and the second one working:
> 
>   # modprobe aufs debug=1 \
>     && mkdir /tmp/{ro,rw,mount} \
>     && touch /tmp/ro/bla \
>     && mount -t aufs -o dirs =/tmp/rw=rw:/tmp/ro=rr+wh aufs /tmp/mount \
>     && ls /tmp/mount ; \
>     ls /tmp/mount
>   Segmentation fault
>   bla
> 
> I've tested replacing that first read access with a write access,
> same result.
> 
> (Off-topic: I'll try to implement a workaround in live-boot.)
> 
> Cheers,
>