On Fri, Mar 31, 2017 at 12:13 PM, Rock Lee <rockdotlee@xxxxxxxxx> wrote: > > Yes, I am using archlinux with mainline kernel linux-4.11.0-r3. > This problem occurs when I am using minix fs as a underlying > filesystem( which contains upperdir, lowerdir, workdir) > But If I am using a ext4 filesystem as a underlying filesystem, there > is no such problem. > > I am wondering if the minix fs doesn't supper whiteout device. The minix fs does not support d_type in readdir and file systems that don't support d_type expose whiteouts to overlay. See warning in dmesg: "overlayfs: upper fs needs to support d_type." > > On Fri, Mar 31, 2017 at 5:10 PM, Rock Lee <rockdotlee@xxxxxxxxx> wrote: >> Yes, I am using archlinux with mainline kernel linux-4.11.0-r3. >> This problem occurs when I am using minix fs as a underlying filesystem. >> But If I >> >> On Fri, Mar 31, 2017 at 4:34 PM, Amir Goldstein <amir73il@xxxxxxxxx> wrote: >>> On Fri, Mar 31, 2017 at 5:52 AM, Rock Lee <rockdotlee@xxxxxxxxx> wrote: >>>> Hi, all: >>>> When I "ls" a overlayfs directory which has a whiteout device in it's upper dir, >>>> and got a strange output like this (aaa is a whiteout in upper): >>>> >>>> [ETO test]# ll -i >>>> ls: cannot access 'aaa': No such file or directory >>>> total 3 >>>> ? ?????????? ? ? ? ? ? aaa >>>> 157633 drwxr-xr-x 1 root root 96 3月 31 2017 hello >>>> 157634 drwxr-xr-x 2 root root 96 3月 31 2017 open >>>> 157632 drwxr-xr-x 1 root root 128 3月 29 04:54 ssh >>>> >>>> But if I use "tree" to list the files , there is no whiteout device in >>>> the test(overlayfs root dir). >>>> I got this output and it seems OK. >>>> >>>> [ETO usb]# tree >>>> . >>>> ├── lower >>>> │ ├── aaa >>>> │ ├── hello >>>> │ │ └── uu >>>> │ └── ssh >>>> ├── test >>>> │ ├── hello >>>> │ ├── open >>>> │ │ └── uu >>>> │ └── ssh >>>> │ ├── aaa >>>> │ └── bbb >>>> ├── upper >>>> │ ├── aaa >>>> │ ├── hello >>>> │ │ └── uu >>>> │ ├── open >>>> │ │ └── uu >>>> │ └── ssh >>>> │ ├── aaa >>>> │ └── bbb >>>> >>>> >>>> If I am correct, I think if the upper dir has a whitout, and the root >>>> directory of overlayfs >>>> should not see this WHITEOUT DEV nor the file in the lower dir with >>>> the same name. >>>> Is this a overlayfs bug ??? >>> >>> Yes. Could be a bug. >>> Please report it to the maintainer of the distro you are using, unless >>> you are seeing this bug on a mainline kernel? -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
