Public bug reported:
1. I mounted an overlayfs with uppderdir=/a, lowerdir=/b to /c
2. I copied fileA to the upperdir
3a. Did 'ls -l /a' Output is
-rwxrwxrwx 1 root root 22153090041 Jan 11 22:45 fileA
3b. Did 'ls -l /b' Output is empty.
3c. Did 'ls -l /c'. Output is
-????????? ? ? ? ? ? fileA
4. Did 'stat /c/fileA', Output is:
stat: cannot stat `fileA': No such file or directory
Is overlayfs broken? Did I do something wrong?
There is nothing in dmesg. Kernel is 3.5.0-26-generic #42.
How can I debug this?
I can do fairly advanced specific kernel debugging/recompiling with patches
etc, but I don't know where to start.
** Affects: lxc (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
1. I mounted an overlayfs with uppderdir=/a, lowerdir=/b to /c
2. I copied fileA to the upperdir
3a. Did 'ls -l /a' Output is
-rwxrwxrwx 1 root root 22153090041 Jan 11 22:45 fileA
3b. Did 'ls -l /b' Output is empty.
- 3c. Did 'ls -l /c'. Output is
- total 90946868
+ 3c. Did 'ls -l /c'. Output is
-????????? ? ? ? ? ? fileA
4. Did 'stat /c/fileA', Output is:
stat: cannot stat `fileA': No such file or directory
Is overlayfs broken? Did I do something wrong?
There is nothing in dmesg. Kernel is 3.5.0-26-generic #42.
How can I debug this?
I can do fairly advanced specific kernel debugging/recompiling with patches
etc, but I don't know where to start.
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https://bugs.launchpad.net/bugs/1167305
Title:
overlayfs shows some files as ?????
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