Hi,
On Sat, May 04, 2019 at 12:41:00AM -0400, David Miller wrote:
> From: David Ahern <dsah...@kernel.org>
> Date: Wed, 1 May 2019 18:08:34 -0700
>
> > From: David Ahern <dsah...@gmail.com>
> >
> > Ian and Alan both reported seeing overflows after upgrades to 5.x kernels:
> > neighbour: arp_cache: neighbor table overflow!
> >
> > Alan's mpls script helped get to the bottom of this bug. When a new entry
> > is created the gc_entries counter is bumped in neigh_alloc to check if a
> > new one is allowed to be created. ___neigh_create then searches for an
> > existing entry before inserting the just allocated one. If an entry
> > already exists, the new one is dropped in favor of the existing one. In
> > this case the cleanup path needs to drop the gc_entries counter. There
> > is no memory leak, only a counter leak.
> >
> > Fixes: 58956317c8d ("neighbor: Improve garbage collection")
> > Reported-by: Ian Kumlien <ian.kuml...@gmail.com>
> > Reported-by: Alan Maguire <alan.magu...@oracle.com>
> > Signed-off-by: David Ahern <dsah...@gmail.com>
>
> Applied and queued up for -stable.
Did this get lost in the shuffle? I see it in mainline, but I don't see
it in stable. Folks are encountering it with recent 5.1 kernels in
Fedora: https://bugzilla.redhat.com/show_bug.cgi?id=1708717.
Thanks,
Jeremy
