Hi, On Sun 02 May 2021 09:06:49 GMT, Salvatore Bonaccorso wrote: > Hi, > > On Mon, Sep 04, 2017 at 03:01:26PM +0200, Raphael Hertzog wrote: > > Control: reopen -1 > > Control: notfixed -1 4.10.0-1~exp1 > > Control: found -1 4.12.6-1 > > > > On Fri, 25 Aug 2017, Raphael Hertzog wrote: > > > I verified today that the issue is gone with Linux 4.12 and apparently > > > the appropriate patches have been merged for Linux 4.10 already (merged by > > > linus in commit ff0f962ca3c38239b299a70e7eea27abfbb979c3). > > > > I don't know how I did my check last time, but I was wrong. The changes > > merged above fixed issues about tools being confused with the unexpected > > st_dev values on files but they did not fix the fact that overlayfs > > might return EXDEV when renaming a directory that is part of the lower > > layer. > > > > So I'm opening the bug again. > > Doing some maintenance on open kernel bugs. Is this by now still an > issue with recent kernels? If not can we close this bug? Part of the > isuses at leas were fixed in 4.10.0-1~exp1, but what about the > remaining or followup issue mentioned by Raphael? > > Regards, > Salvatore
the EXDEV return value is still reproducible:
$ mkdir -p /tmp/ovl/{lower/dir,upper,work,mount}
$ sudo mount -t overlay -o
lowerdir=/tmp/ovl/lower,upperdir=/tmp/ovl/upper,workdir=/tmp/ovl/work none
/tmp/ovl/mount
$ strace -e trace=rename,renameat,renameat2 mv /tmp/ovl/mount/dir
/tmp/ovl/mount/newname
renameat2(AT_FDCWD, "/tmp/ovl/mount/dir", AT_FDCWD,
"/tmp/ovl/mount/newname", RENAME_NOREPLACE) = -1 EXDEV (Invalid cross-device
link)
+++ exited with 0 +++
and in dpkg sources I cannot find any special handling for EXDEV. From
my point of view, the bug is still not fixed.
Kind regards,
Nicolas
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