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Date: Tue, 14 Nov 2006 10:12:22 GMT
From: Robert Watson <rwatson@FreeBSD.org>
Message-Id: <200611141012.kAEACM0o030094@freefall.freebsd.org>
To: rwatson@FreeBSD.org, freebsd-bugs@FreeBSD.org, rwatson@FreeBSD.org
Cc: 
Subject: Re: kern/104765: kernel panic 6.2 prerelease-20061017 amd64
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Synopsis: kernel panic 6.2 prerelease-20061017 amd64

Responsible-Changed-From-To: freebsd-bugs->rwatson
Responsible-Changed-By: rwatson
Responsible-Changed-When: Tue Nov 14 10:05:50 UTC 2006
Responsible-Changed-Why: 
Claim ownership, since I've been looking at issues similar or identical
to this.  Some questions:

(1) Could you let me know what versions of ip_output.c and tcp_usrreq.c
    you're running with?

(2) Could you try the most recent patch attached to PR 102412?  This is
    a patch to ip_ctloutput().  I've attached it below, but the chances
    are good that GNATS will mangle the patch.

Index: ip_output.c
===================================================================
RCS file: /home/ncvs/src/sys/netinet/ip_output.c,v
retrieving revision 1.242.2.16
diff -u -r1.242.2.16 ip_output.c
--- ip_output.c	24 Oct 2006 13:23:03 -0000	1.242.2.16
+++ ip_output.c	26 Oct 2006 18:20:55 -0000
@@ -1155,6 +1155,7 @@
 	struct sockopt *sopt;
 {
 	struct	inpcb *inp = sotoinpcb(so);
+	struct	inpcbinfo *pcbinfo = inp->inp_pcbinfo;
 	int	error, optval;
 
 	error = optval = 0;
@@ -1190,12 +1191,15 @@
 				m_free(m);
 				break;
 			}
+			INP_INFO_WLOCK(pcbinfo);
 			if (so->so_pcb == NULL) {
+				INP_INFO_WUNLOCK(pcbinfo);
 				m_free(m);
 				error = EINVAL;
 				break;
 			}
 			INP_LOCK(inp);
+			INP_INFO_WUNLOCK(pcbinfo);
 			error = ip_pcbopts(inp, sopt->sopt_name, m);
 			INP_UNLOCK(inp);
 			return (error);


http://www.freebsd.org/cgi/query-pr.cgi?pr=104765