Re: 4.19: Traced deadlock during xfrm_user module load

2019-06-27 Thread Florian Westphal
Thomas Jarosch wrote: > You wrote on Tue, Jun 25, 2019 at 06:53:44PM +0200: > > Thanks for this detailed analysis. > > In this specific case I think this is enough: > > > > diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c > > index 92077d459109..61ba92415480 100644 > > --- a/net

Re: 4.19: Traced deadlock during xfrm_user module load

2019-06-27 Thread Thomas Jarosch
Hi Florian, You wrote on Tue, Jun 25, 2019 at 06:53:44PM +0200: > Thanks for this detailed analysis. > In this specific case I think this is enough: > > diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c > index 92077d459109..61ba92415480 100644 > --- a/net/netfilter/nfnetlink.c >

Re: 4.19: Traced deadlock during xfrm_user module load

2019-06-25 Thread Florian Westphal
Thomas Jarosch wrote: > we're in the process of upgrading to kernel 4.19 and hit > a very rare lockup on boot during "xfrm_user" module load. > The tested kernel was 4.19.55. > > When the strongswan IPsec service starts, it loads the xfrm_user module. > -> modprobe hangs forever. > > Also netwo

4.19: Traced deadlock during xfrm_user module load

2019-06-25 Thread Thomas Jarosch
Hi all, we're in the process of upgrading to kernel 4.19 and hit a very rare lockup on boot during "xfrm_user" module load. The tested kernel was 4.19.55. When the strongswan IPsec service starts, it loads the xfrm_user module. -> modprobe hangs forever. Also network services like ssh or apache