On Tue, Jul 21, 2015 at 03:21:16PM -0500, Eric van Gyzen wrote: > ... > >> So it looks like net swi, leaking some udp6 lock. > > Curiouser and curiouser... While I'm not taking any special pains to > > avoid building IPv6, I'm not actively actually doing anything with it > > (IPv6), either (for both the failing machine and my laptop). > > > > Once I'm back home, I should be able to poke around in ddb after > > re-creating the panic, if that would be a useful thing for me to do (and > > given some hints as to what to poke). > > > > Naturally, I'm also happy to change bits of sources, rebuild, and > > smoke-test. > > > > A quick check from the SVN update output only shows r285710, r285711, and > > r285740 in the range from (r285685,r285741] -- as the kernel running > > r285685 had no known issues -- that touched sys/netinet6/*. > > It's a multicast destination. Maybe something is using mDNS? > > Randall, does the test on line 406 of udp6_usrreq.c need to be inverted? > > Eric >
<DING!> We have a winner! FreeBSD freebeast.catwhisker.org 11.0-CURRENT FreeBSD 11.0-CURRENT #1789 r285741M/285741:1100077: Tue Jul 21 14:50:59 PDT 2015 r...@freebeast.catwhisker.org:/common/S3/obj/usr/src/sys/GENERIC amd64 freebeast(11.0-C) cd /usr/src freebeast(11.0-C) svn diff sys/netinet netinet/ netinet6/ freebeast(11.0-C) svn diff sys/netinet* Index: sys/netinet6/udp6_usrreq.c =================================================================== --- sys/netinet6/udp6_usrreq.c (revision 285741) +++ sys/netinet6/udp6_usrreq.c (working copy) @@ -403,7 +403,7 @@ INP_RLOCK(last); INP_INFO_RUNLOCK(pcbinfo); UDP_PROBE(receive, NULL, last, ip6, last, uh); - if (udp6_append(last, m, off, &fromsa)) + if (! udp6_append(last, m, off, &fromsa)) INP_RUNLOCK(last); inp_lost: return (IPPROTO_DONE); freebeast(11.0-C) Thanks! :-) Peace, david -- David H. Wolfskill da...@catwhisker.org Those who murder in the name of God or prophet are blasphemous cowards. See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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