Date: Tue, 5 Jul 2011 11:20:08 GMT From: Mike Cui <cuicui@gmail.com> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/158665: kernel pagefault in in6_setscope() Message-ID: <201107051120.p65BK8hC014413@freefall.freebsd.org>
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The following reply was made to PR kern/158665; it has been noted by GNATS. From: Mike Cui <cuicui@gmail.com> To: bug-followup@FreeBSD.org, cuicui@gmail.com Cc: Subject: Re: kern/158665: kernel pagefault in in6_setscope() Date: Tue, 5 Jul 2011 03:47:53 -0700 Got a kernel dump, here's the stack trace. Unfortunately I didn't build the kernel with debugging info. #7 0xc069cee8 in in6_setscope () #8 0xc0685bb9 in in6_selectsrc () #9 0xc069aa80 in rip6_output () #10 0xc069b193 in rip6_send () #11 0xc05a7885 in sosend_generic () #12 0xc05a38cf in sosend () #13 0xc05ab139 in kern_sendit () #14 0xc05ab341 in sendit () #15 0xc05ab3f1 in sendmsg () #16 0xc0581d2c in syscallenter () #17 0xc07278a4 in syscall () From the stack trace, it looks like the call happened on in6_src.c:309: IN6_IFADDR_RLOCK(); TAILQ_FOREACH(ia, &V_in6_ifaddrhead, ia_link) { int new_scope = -1, new_matchlen = -1; struct in6_addrpolicy *new_policy = NULL; u_int32_t srczone, osrczone, dstzone; struct in6_addr src; struct ifnet *ifp1 = ia->ia_ifp; /* * We'll never take an address that breaks the scope zone * of the destination. We also skip an address if its zone * does not contain the outgoing interface. * XXX: we should probably use sin6_scope_id here. */ if (in6_setscope(&dst, ifp1, &dstzone) || <---- HERE odstzone != dstzone) { continue; }
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