On 6 March 2018 at 11:38, Adrian Veith <adr...@vtim.de> wrote:
> I had this hang in haproxy after trying out kernel 4.16.0-041600rc1
> after starting haproxy for some minutes. Now I am back on kernel
> 4.15.0-10-generic and everything seems ok so far.
Yeah, this is a kernel bug, you need the fix:
netfilter: drop outermost socket lock in getsockopt()
Which should be in 4.16-rc3 (we are already at 4.16-rc4).
If you use kernel.org stable or RC kernel, always upgrade to the
latest kernel first.