Indeed the patch didn't solve the problem. I trigger this every times. No power cuts is involved. Every time I try to do an operation on a file that hasn't already been copied on the upper layer, it fail when overlayfs try to set xattr. I tried removing the patch in ubifs which cause the fail (https://lore.kernel.org/patchwork/patch/960502/) and everything work now. I also just found this patch: https://lore.kernel.org/patchwork/patch/986563/ , so I guess its safe to remove it. Thanks, Vincent -----Original Message----- From: Richard Weinberger [mailto:richard@xxxxxx] Sent: December 11, 2018 4:54 AM To: Amir Goldstein Cc: Guerard, Vincent; Miklos Szeredi; overlayfs Subject: Re: [EXTERNAL] Re: Copy_up function fail with ubifs on upper layer Am Montag, 10. Dezember 2018, 21:37:46 CET schrieb Amir Goldstein: > On Mon, Dec 10, 2018 at 10:02 PM Guerard, Vincent > <VincentGuerard@xxxxxxxxx> wrote: > > > > Here's the output when overlayfs try to do a copy up with the original function calls order and with debug enabled: > > > > root@io2200:/etc# mv machine-id machine-id1 > > mv: cannot move 'machine-id' to 'machine-id1': No such file or > > directory root@io2200:/etc# dmesg [ 2999.275275] > > tmpfile(upper.work/work, 0100644) = 0 [ 2999.278789] > > setxattr(work/#232, "trusted.overlay.origin", "(null)", 0x0) = -2 > > > > And here's with inverted function calls: > > root@io2200:/etc# mv securetty securetty1 root@io2200:/etc# dmesg [ > > 659.515200] tmpfile(upper.work/work, 0100400) = 0 [ 659.515422] > > link(work/#164, etc/securetty) = 0 [ 659.518577] > > setxattr(work/#164, "trusted.overlay.origin", "(null)", 0x0) = 0 [ > > 659.522153] rename(etc/securetty, etc/securetty1, 0x4) > > > > Maybe this is the patch you need: > https://marc.info/?l=linux-unionfs&m=154070087430992&w=2 Hmm, this fixes something different. Vincent, do you trigger this every time or just once? Is a power-cut involved? Long story short, I need more info. Thanks, //richard