On 05/21 08:46, tu...@posteo.de wrote:
> On 05/21 08:41, Kai Krakow wrote:
> > Am Sun, 21 May 2017 08:15:57 +0200
> > schrieb tu...@posteo.de:
> > 
> > > I have a directory mounted via fuse.encfs (encrypted).
> > > 
> > > Since kernel 4.11 (seldom, more often with 4.11.1 and 4.11.2) it
> > > happens that once in a sudden the system decides to make the
> > > contents unaccessible:
> > > 'mount' stills shows the mount of that directory but neither
> > > 'ls' or any other application can find the directory anymore.
> > > This happens while an application still accesses files
> > > of that directory (and the failure to do so shows that
> > > the "auto umount" has hit again).
> > > 
> > > I fetched the kernel right off ftp.kernel.org (more
> > > exactlu: off a mirror of that).
> > 
> > Why don't you use the gentoo-sources kernel ebuild? It has some special
> > patches for Gentoo userland... Tho I don't see any that may have
> > directly to do with your problem...
> > 
> > But maybe you want to check if it happens there, too. They have at
> > least 4.11.1 available by now. Myself, I'm using ck-sources 4.11.1.
> > 
> > 
> > > What is happening here? Has Linus implemented a timer
> > > for that ? :)
> > 
> > Do you use systemd and mounted it with a mount-timeout parameter
> > accidently?
> > 
> > > Any help is very appreciated since this featire is VERY
> > > annoying!
> > 
> > Since this is a fuse filesystem, check dmesg if there are any signals
> > regarding the fuse daemon: Maybe it just crashed. It doesn't really
> > unmount since you still see the mount point listed. Compare the running
> > fuse related processes before and after the issue.
> > 
> > 
> > -- 
> > Regards,
> > Kai
> > 
> > Replies to list-only preferred.
> > 
> > 
> 
> Hi Kai,
> 
> thanks for your help! 
> 
> Cheers
> Meino
> 
> 
> 

It happens again.

Linux kernel 4.11.0 (fetched from ftp.kernel.org mirror)

dmesg:
[ 3879.147626] encfs[4099]: segfault at 0 ip 000000000044ca52 sp 
00007fb17d8d2990 error 4 in encfs[400000+95000]

Nothing more than this in the dmesg, though.

Cheers
Meino



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