[Pkg-clamav-devel] Bug#904111: clamav-daemon causing deadlocks/blocking I/O

[Sebastian Andrzej Siewior]

On 2018-07-27 23:56:53 [+0200], To Marc Dequènes wrote:
> On 2018-07-25 22:03:46 [+0200], To Marc Dequènes wrote:
> > > I just tried loading Adam's configuration on another system to test the
> > > ScanOnAccess, copied a clamav test file in one of the protected directory
> > > and hit the problem. After that the whole machine becomes totally
> > > unresponsive in a few seconds.
> 
> bootet Stretch with 0.100.0+dfsg-0+deb9u2. Using the attached
> clamd.conf. I see
> |clamd (810): Using fanotify permission checks may lead to deadlock; tainting kernel
> 
> in the kernel log. I can copy the test-files but I can't read them. I
> can delete them.  The system is still working. I have
> 	linux-image-4.9.0-7-amd64 4.9.110-1
> installed and I have btrfs as rootfs on that box. What could I miss
> there in order to reproduce this?

I didn't manage to reproduce it yet. My plan was to to gather enough
informations to reproduce it and forward it upstream.
Is there anything wrong / different with my setup compared to your?
Maybe different filesystem or something like that (if everything else is
the same).

Sebastian