Re: panic in cypto code

From: Kristof Provost <kp_at_freebsd.org>
Date: Fri, 06 Oct 2023 07:12:50 UTC

> On 6 Oct 2023, at 08:46, Steve Kargl <sgk@troutmask.apl.washington.edu> wrote:
> 
> On Thu, Oct 05, 2023 at 03:11:02PM -0700, Steve Kargl wrote:
>> 
>> I'll ping you off list when it's available.
>> 
> 
> Well, this is interesting.  I cannot upload the files to
> a location from which I can then put them up on freefall. :(
> 
> % scp -P1234 kernel.debug 10.95.76.21:
> kernel.debug                                    0%  255KB 255.0KB/s   04:01 ETAclient_loop: send disconnect: Broken pipe
> lost connection
> % scp -P1234 vmcore.2  10.95.76.21:
> vmcore.2                                        0%  255KB 254.9KB/s   49:46 ETAclient_loop: send disconnect: Broken pipe
> lost connection
> 
> Looks like if_ovpn,ko is autoloaded.
> %  kldstat | grep ovpn
> 23    1 0xffffffff82042000     6650 if_ovpn.ko
> 
> Don't know what if_ovpn.ko does in hijacking tun0, but dying after
> 255kB is likely not correct.
> 
If_ovpn.ko is the kernel side of the DCO (data channel offload) thing for OpenVPN. It’s loaded and activated automatically if available. 
You can add “disable-dco” to your OpenVPN config to disable that.

Kristof