Re: e179d973 insta-panics in nl_send_one()

From: Poul-Henning Kamp <phk_at_phk.freebsd.dk>
Date: Sat, 06 Jan 2024 22:34:19 UTC 
Addendum:

   I have only installed the new kernel, userland is still from dec18.

(Even if that is the cause, we should not panic on bad syscall args.)

Poul-Henning Kamp writes:
> With fresh current:
>
> 	commit e179d9739b1438ae9acb958f80a983eff7e3dce9
> 	Author: Michael Tuexen <tuexen@FreeBSD.org>
> 	Date:   Sat Jan 6 21:31:46 2024 +0100
>
> 	    tcpsso: support TIME_WAIT state
>     
> I get an insta-panic as soon as any network interface comes up:
>
> 	--- trap 0xc, rip = 0xffff...f80d97b78, rsp = 0x...
> 	nl_send_one() at nl_send_one+0x18/frame 0xf....
> 	nl_send_group() at nl_send_group+0x1bc/frame 0xf...
> 	_nlmsg_flush() at _nlmsg_flush+0x37/frame 0xf...
> 	rtnl_handle_ifevent() + 0xa1
> 	if_attach_internal + 0x3df
>
> I have a picture of the full panic if desired...
>
> -- 
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk@FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe
> Never attribute to malice what can adequately be explained by incompetence.
>

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.