I have seen this on boot of my laptop.
It appears that in6_joingroup() was called in netisr_dispatch_src
codepath, and it tried to acquire IN6_MULTI_LOCK(), which happened to
sleep because we failed to acquire the sx, thus triggered the panic.
===
panic: sleepq_add: td 0xf8000ecd6000 to slee
> -Original Message-
> From: John Baldwin
> Sent: Thursday, October 17, 2019 4:34 PM
> To: Keller, Jacob E ; freebsd-net@freebsd.org
> Cc: sh...@llnw.com; Joyner, Eric
> Subject: Re: panic on invalid ifp pointer in iflib drivers
>
> On 10/17/19 4:22 PM, Keller, Jacob E wrote:
> > Hmm.. n
On 10/17/19 4:22 PM, Keller, Jacob E wrote:
> Hmm.. now that I look at that more closely I think it's a separate issue.
This may just be the rcvif issue where we don't reference count the ifp we
store in rcvif in mbufs? That was my reaction to your first e-mail except
that you said it wasn't repr
> -Original Message-
> From: Keller, Jacob E
> Sent: Thursday, October 17, 2019 4:22 PM
> To: John Baldwin ; freebsd-net@freebsd.org
> Cc: sh...@llnw.com; Joyner, Eric
> Subject: RE: panic on invalid ifp pointer in iflib drivers
>
> > -Original Message-
> > From: John Baldwin
> >
> -Original Message-
> From: John Baldwin
> Sent: Thursday, October 17, 2019 9:31 AM
> To: Keller, Jacob E ; freebsd-net@freebsd.org
> Cc: sh...@llnw.com; Joyner, Eric
> Subject: Re: panic on invalid ifp pointer in iflib drivers
>
> Nominally, ifnet drivers should call ether_ifdetach fir
> -Original Message-
> From: John Baldwin
> Sent: Thursday, October 17, 2019 9:31 AM
> To: Keller, Jacob E ; freebsd-net@freebsd.org
> Cc: sh...@llnw.com; Joyner, Eric
> Subject: Re: panic on invalid ifp pointer in iflib drivers
>
> On 10/16/19 2:16 PM, Keller, Jacob E wrote:
> > Hi,
> >
On 10/16/19 2:16 PM, Keller, Jacob E wrote:
> Hi,
>
> I'm investigating an issue on the iflib ixl driver in 11.3-RELEASE as well as
> 12-RELEASE. We found a panic in that occurs if SCTP/IPv6 traffic is being
> transmitted while the device is detached:
>
> Fatal trap 12: page fault while in kern
09.10.2019 2:05, Victor Gamov wrote:
> I have FreeBSD 11.2-STABLE #0 r343863 VM with 2 CPU and vxnet3 NIC. This host
> uses many if_ipsec and strongswan-5.7.2 to make site-to-site ipsec
> connections.
>
> When I use `tcpdump -nn -i src and esp` then I got
> many reordered IPsec packets.
>
>
