Re: net.inet6.icmp6.nd6_useloopback - what is it supposed to do?
Garrett Cooper wrote in : ya> Hi, ya> I've been TAHI testing FreeBSD 7.x sources for the past couple ya> months and over the course of my testing via the TAHI IPv6 conformance ya> test, I changed the knob value from net.inet6.icmp6.nd6_useloopback=1 ya> -> net.inet6.icmp6.nd6_useloopback=0 and ran into a slew of errors ya> with the addr.p2 phase-1 TAHI tests. ya> I was wondering if someone could describe what the beforementioned ya> sysctl is supposed to do from a functional perspective, how it might ya> tie into other IPv6 RFCs (if applicable), and if disabled how it would ya> affect a system with IPv6 enabled. It is for whether a loopback address (::1) is used as the destination for traffic toward one of the locally-configured IPv6 addresses. In the original implementation it is in rtrequest(), but the current FreeBSD's one it just means if a loopback route will be installed or not upon the lo0 interface initialization, not in RTM_RESOLVE. So, if setting nd6_useloopback to 0, no loopback route will be installed and some THAI test will fail, I think. -- Hiroki pgpgyi4VdowHF.pgp Description: PGP signature
A small patch for sys/netinet6/in6_src.c
Really trivial change.
/u/vijay/bsd/CODE/cur# svn diff sys/netinet6/in6_src.c
Index: sys/netinet6/in6_src.c
===
--- sys/netinet6/in6_src.c (revision 243309)
+++ sys/netinet6/in6_src.c (working copy)
@@ -597,11 +597,6 @@
if (ron->ro_rt == NULL) {
in6_rtalloc(ron, fibnum); /* multi path case? */
if (ron->ro_rt == NULL) {
- /* XXX-BZ WT.? */
- if (ron->ro_rt) {
- RTFREE(ron->ro_rt);
- ron->ro_rt = NULL;
- }
error = EHOSTUNREACH;
goto done;
}
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Re: LOR in rtsock/ifnet
DO we know which commit triggered this? Adrian On 21 November 2012 16:31, Rui Paulo wrote: > I just started seeing this on r243286. > > lock order reversal: > 1st 0xfe0001b40400 if_addr_lock (if_addr_lock) @ > /usr/home/rpaulo/freebsd/head/sys/net/rtsock.c:1818 > 2nd 0x80c693f8 ifnet_rw (ifnet_rw) @ > /usr/home/rpaulo/freebsd/head/sys/net/if.c:241 > KDB: stack backtrace: > db_trace_self_wrapper() at db_trace_self_wrapper+0x2b > kdb_backtrace() at kdb_backtrace+0x39 > witness_checkorder() at witness_checkorder+0xc37 > __rw_rlock() at __rw_rlock+0x8c > ifnet_byindex() at ifnet_byindex+0x22 > sa6_recoverscope() at sa6_recoverscope+0x7b > rt_msg2() at rt_msg2+0x1a2 > sysctl_rtsock() at sysctl_rtsock+0x68c > sysctl_root() at sysctl_root+0x1d7 > userland_sysctl() at userland_sysctl+0x192 > sys___sysctl() at sys___sysctl+0x74 > amd64_syscall() at amd64_syscall+0x265 > Xfast_syscall() at Xfast_syscall+0xfb > --- syscall (202, FreeBSD ELF64, sys___sysctl), rip = 0x8011813ea, rsp = > 0x7fffd408, rbp = 0x7fffd440 --- > > Regards, > -- > Rui Paulo > > ___ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org" ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
Re: LOR in rtsock/ifnet
On 25 Nov 2012, at 23:35, Adrian Chadd wrote: > DO we know which commit triggered this? I haven't bisected. Regards, -- Rui Paulo ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
Re: LOR in rtsock/ifnet
Rui Paulo wrote in <63c19ad8-ea8d-49a8-9e98-4235c4745...@freebsd.org>: rp> On 25 Nov 2012, at 23:35, Adrian Chadd wrote: rp> rp> > DO we know which commit triggered this? rp> rp> rp> I haven't bisected. I do not think my commit triggered it because it occurred in rt_msg2(). Andrey, can you take a look at this? -- Hiroki pgp4Ar9nzPqy3.pgp Description: PGP signature
