Hello, I am sent here by the libfuse maintainer with the following issue: [ https://github.com/libfuse/libfuse/issues/57 ] Using unionfs-fuse, here is a simple script that freezes the caller when accessing to the mounted directory. After some tests, it appears that this script is working with previous versions of the kernel's fuse-api (with any version of unionfs or fuse even the latests). On <v4 kernel, it works (kernel/fuse api up to 7.22). On 4+ kernels (or kernel's fuse-api 7.23), it freezes (the script stops on the "freezing?" message, a reboot is needed to sort this out) The idea behind this script is mounting an existing directory above itself with modifcations pushed to another one. I'm aware I'm (was) exploiting some sort of out-of-purpose side effect. There is at least a bug (freezing), but it would be great to restore the feature back. Best david #!/bin/sh set -x while umount /tmp/test; do true; done set -e rm -rf /tmp/rw mkdir -p /tmp/test /tmp/rootbind /tmp/rw date > /tmp/test/a mount -o bind / /tmp/rootbind unionfs -o allow_other,use_ino,suid,dev,nonempty,cow /tmp/rw=RW:/tmp/rootbind/tmp/test=RO /tmp/test echo freezing? echo not freezing >> /tmp/test/a cat /tmp/test/a cat /tmp/rootbind/tmp/test/a -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
