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Date:      Tue, 9 Jan 2024 13:09:55 -0800
From:      Gleb Smirnoff <glebius@freebsd.org>
To:        Jakob Alvermark <jakob@alvermark.net>
Cc:        freebsd-current@freebsd.org
Subject:   Re: e179d973 insta-panics in nl_send_one()
Message-ID:  <ZZ22I8GiEFHOU7rC@FreeBSD.org>
In-Reply-To: <ae34b3e9-1d26-48e0-8f18-7ba188d771d9@alvermark.net>
References:  <202401062231.406MVrxT002354@critter.freebsd.dk> <202401062234.406MYJ6E004159@critter.freebsd.dk> <ae34b3e9-1d26-48e0-8f18-7ba188d771d9@alvermark.net>

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On Mon, Jan 08, 2024 at 10:40:52AM +0100, Jakob Alvermark wrote:
J> > > 	--- trap 0xc, rip = 0xffff...f80d97b78, rsp = 0x...
J> > > 	nl_send_one() at nl_send_one+0x18/frame 0xf....
J> > > 	nl_send_group() at nl_send_group+0x1bc/frame 0xf...
J> > > 	_nlmsg_flush() at _nlmsg_flush+0x37/frame 0xf...
J> > > 	rtnl_handle_ifevent() + 0xa1
J> > > 	if_attach_internal + 0x3df
J> > > 
J> > > I have a picture of the full panic if desired...
J> > > 
J> > > -- 
J> > > Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
J> > > phk@FreeBSD.ORG         | TCP/IP since RFC 956
J> > > FreeBSD committer       | BSD since 4.3-tahoe
J> > > Never attribute to malice what can adequately be explained by incompetence.
J> 
J> I get the same panic, with kernel and userland both installed.

Sorry, that was my failure. Fix pushed and now working on
a regression test that would cover Netlink group writers.

-- 
Gleb Smirnoff



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