Re: [overlay] [fuse] Potential bug with large file support for FUSE based lowerdir

[Lukasz Okraszewski <Lukasz.Okraszewski@xxxxxxx>]

> So this is a FUSE_IOCTL/FS_IOC_GETFLAGS request for which the server
> replies with EOVERFLOW.  This looks like a server issue, but it would
> be good to see the logs and/or strace related to this particular
> request.
> 
> Thanks,
> Miklos

Thanks for having a look!

I have attached the logs. I am running two lower dirs but I don't think it should matter. 
For clarify the steps were:
```
squashfuse -o allow_other large1.squashfs work/lower1 -d  2>&1 | tee /tmp/lower1.log
squashfuse -o allow_other large2.squashfs work/lower2 -d  2>&1 | tee /tmp/lower2.log
sudo mount \
  -t overlay \
  -o lowerdir=work/lower2:work/lower1:work/lower0,upperdir=work/upper,workdir=work/work\
  overlay \
  work/mnt
cd work/mnt
strace dd if=/dev/zero of=test.file bs=4k count=80  2>&1 | tee /tmp/strace.log
```

Kind regards,
Lukasz

Attachment: lower2.log
Description: lower2.log

Attachment: strace.log
Description: strace.log

Attachment: lower1.log
Description: lower1.log